Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water "National standards, compliant care, precise results for water, soil, and air—US Environmental." Call/Text 331-462-2711 - Next Day Appointments DuPage County Service Areas Blog 331-462-2711 Request Quote

Professional Credentials Elevating Standards of Testing, Inspection & Risk Assessment When the safety of a home, workplace, school, commercial property, or real estate investment is at stake, experience and credentials matter. US Environmental Testing provides comprehensive environmental testing, inspection, sampling, and risk assessment services designed to identify potential environmental hazards and deliver reliable, science-based information. Since 2015, US Environmental Testing has supported homeowners, real estate professionals, property managers, contractors, schools, healthcare facilities, government agencies, and commercial organizations with professional environmental assessment services. Our approach combines experienced environmental professionals, applicable state and federal regulatory knowledge, recognized industry standards, advanced testing methodologies, and qualified laboratory analysis. We believe environmental testing should be performed by professionals who understand not only how to collect a sample, but also what the results mean, which regulations apply, and how those findings affect the people occupying a building. Comprehensive Environmental Expertise US Environmental Testing brings multiple environmental disciplines together under one organization, providing clients with a single resource for complex environmental concerns. Our professional service disciplines include: Asbestos Inspection & Testing : Building material inspections, suspect asbestos-containing material identification, bulk sampling, air monitoring, and laboratory analysis. Lead-Based Paint Inspection & Risk Assessment: Lead paint identification, paint-chip sampling, dust-wipe testing, soil sampling, and residential and commercial risk assessments. Mold Inspection & Assessment : Moisture investigations, indoor environmental assessments, surface and air sampling, microbial identification, and post-remediation evaluations. Radon Testing & Detection : Residential, commercial, multifamily, school, and institutional radon measurement using recognized EPA and ANSI/AARST methodologies. Organic Compounds & Indoor Air Quality : VOC investigations, chemical identification, indoor air quality assessments, and specialized environmental sampling. Certified Water Testing : Laboratory-based water analysis for lead, Legionella, PFAS, PFCAs, PFSAs, heavy metals, and other chemical and microbiological contaminants, subject to the applicable laboratory accreditation and testing scope. Qualifications That Speak for Themselves We believe professional qualifications should be transparent, documented, and independently verifiable. Our environmental professionals maintain discipline-specific licenses, registrations, training, and qualifications applicable to the services they perform. Our published professional credentials include: Illinois: Asbestos Professional License No. 100.19970; Radon Measurement Professional No. RNM2015202. Illinois Department of Public Heath, Lead Risk Assessor, License No. 100.2747 Hawaii: Asbestos Inspector License No. HIASB-5747. South Carolina: SCDES Asbestos Consultant No. BI-002428. Wisconsin: Lead Professional ID No. 2777530; Radon Measurement Professional credentials. Florida: Licensed Mold Risk Assessor. Professional Affiliations: Indoor Environments Association and AARST membership ID No. A6690. Our work is informed by applicable requirements and technical guidance from the U.S. Environmental Protection Agency (EPA), HUD, OSHA, NIOSH, CDC, ASTM International, and ANSI/AARST.Laboratory testing is performed through appropriately qualified laboratories, with accreditation and analytical scope considered for the specific test requested. We encourage clients to review our credentials, applicable state registrations, laboratory qualifications, and professional experience before engaging any environmental testing provider. Why US Environmental Testing? One Company. Multiple Environmental Disciplines.Unlike providers focused on a single environmental service, US Environmental Testing offers a comprehensive range of testing and assessment capabilities. This allows clients to coordinate multiple environmental concerns through one experienced organization.Independent Testing. Objective Findings.Our testing-focused business model separates environmental assessment from remediation contracting. We provide findings and recommendations without making remediation work a requirement of receiving our testing services.Residential to Federal-Level Project Experience.Our experience spans residential real estate, commercial development, multifamily housing, industrial facilities, schools, daycare centers, healthcare environments, and government-related projects.Science-Based Reporting.Our objective is to deliver understandable, professionally documented findings supported by appropriate sampling methods, laboratory analysis, and applicable regulatory guidance.Experience That Matters.With more than a decade of environmental industry experience, our professionals understand the importance of accurate sampling, proper documentation, regulatory awareness, and dependable communication. Our Commitment Environmental hazards are not always visible. Asbestos fibers, lead dust, mold spores, radon gas, volatile organic compounds, and water contaminants can exist without obvious warning signs.The right testing can help identify potential exposure concerns, support informed real estate decisions, guide renovation and construction planning, and protect building occupants.At US Environmental Testing, we believe clients deserve more than a sample collection and a laboratory number. They deserve professional expertise, transparent qualifications, accurate results, and an environmental testing partner they can trust. US Environmental Testing Professional Environmental Testing. Knowledge You Can Trust. Serving Residential, Commercial, Government & Institutional Clients Glen Ellyn, Illinois 331-462-2711 info@usenvi.com www.usenvi.com Request an Environmental Assessment Today. Request a Quote First Name Last Name Email Message Send Thanks for submitting! Blog 331-462-2711 Request Quote

Know What's in Your Home with vermiculite testing. Know What's in Your Home—schedule an inspection with US Environmental today. Call 331-462-2711 to schedule. Vermiculite Insulation 1. What is vermiculite insulation, and why is it a concern in older homes? Vermiculite is a naturally occurring mineral that expands when heated, creating lightweight, pebble-like insulation. It was commonly used in residential attics and wall cavities because of its insulating and fire-resistant properties. The primary concern is that much of the vermiculite insulation installed in American homes came from a mine near Libby, Montana, where the vermiculite ore was naturally contaminated with asbestos. This material was frequently sold under the brand name Zonolite. When disturbed, contaminated insulation can release microscopic asbestos fibers into the air. These fibers can be inhaled and may cause serious diseases, including mesothelioma, lung cancer, and asbestosis. If your home contains vermiculite insulation, it should be treated as potentially asbestos-contaminated. Professional evaluation is particularly important before renovation, demolition, or other work that could disturb the material. US EPA+2 2. How can I tell if my attic contains vermiculite insulation? Vermiculite insulation is generally easy to recognize by its appearance, although visual identification cannot determine whether asbestos is present. Common characteristics include: Small, pebble-like or accordion-shaped particles. Gray, silver-gold, tan, or light brown coloring. Lightweight, granular material that resembles small stones. Loose-fill insulation poured or blown between attic floor joists. Material that may be several inches deep. Some older homes contain vermiculite beneath newer fiberglass or cellulose insulation, making it less obvious during a routine home inspection. Important: Never handle, scoop, vacuum, or disturb suspected vermiculite to identify it. A qualified environmental professional can evaluate the material and document its presence and condition. US EPA+1 3. Does all vermiculite insulation contain asbestos? No. Vermiculite itself is not asbestos. However, certain vermiculite deposits contained naturally occurring asbestos minerals. The most significant historical concern involves vermiculite mined near Libby, Montana, which supplied a substantial portion of the vermiculite used in the United States for decades. The contaminated material was distributed nationally and commonly marketed as Zonolite. Because the original source of insulation in many homes cannot be established, the U.S. Environmental Protection Agency (EPA) recommends assuming that vermiculite insulation may contain asbestos. This distinction is important for homeowners and real estate professionals: you cannot determine whether vermiculite is asbestos-free simply by looking at it. US EPA+1 4. Why is asbestos testing important when buying or selling a home with vermiculite insulation? Vermiculite insulation can become an important environmental consideration during a residential real estate transaction. Buyers want to understand potential environmental concerns before purchasing a property. Sellers want to avoid unexpected questions, renovation complications, or disputes after closing. Real estate agents need reliable information to help clients make informed decisions. A professional asbestos assessment can help: Identify and document suspected vermiculite insulation. Evaluate other potentially asbestos-containing building materials. Determine whether additional sampling or laboratory analysis is appropriate. Identify materials that could be affected by planned renovations. Provide environmental documentation for property records. Help buyers and sellers understand potential next steps. One important distinction: the EPA recommends treating vermiculite insulation as asbestos-contaminated rather than relying on a negative routine sample to establish that it is safe. Standard testing methods may not reliably rule out asbestos contamination in vermiculite. Before purchasing, selling, or renovating a property with suspected vermiculite, obtain guidance from a qualified asbestos professional. US EPA+2 5. Is vermiculite insulation dangerous if it is left undisturbed? Not necessarily. The potential health risk from asbestos depends heavily on whether fibers become airborne and are inhaled. Vermiculite insulation that remains contained and undisturbed generally presents a lower potential for exposure than insulation that is handled, removed, damaged, or disturbed during construction. However, problems can arise when: Contractors install recessed lighting or electrical wiring. HVAC technicians access attic equipment. Roofing contractors enter attic spaces. Homeowners install additional insulation. Remodeling projects disturb ceilings or wall cavities. Insulation is moved, swept, vacuumed, or removed improperly. The EPA recommends leaving vermiculite insulation undisturbed, limiting attic access, and preventing contractors from disturbing the material. The absence of visible dust does not establish that asbestos fibers are absent. US EPA+2 6. Can vermiculite insulation contaminate the rest of my home? Yes, potentially. If asbestos-contaminated vermiculite is disturbed, microscopic fibers may become airborne and migrate into other areas of a home. Potential pathways include: Attic access openings and pull-down stairs. Ceiling penetrations and recessed lighting. Electrical and plumbing openings. HVAC equipment and ductwork. Wall cavities and unfinished construction areas. Clothing, footwear, and equipment used by contractors. This is particularly important when insulation has been disturbed during previous remodeling, electrical work, or roof repairs. If you suspect that vermiculite has been disturbed, avoid further cleanup or handling. An environmental professional can evaluate the situation and determine whether additional assessment or appropriate air monitoring is warranted. US EPA+1 7. Should I have vermiculite insulation removed before renovating my home? You should have the material professionally evaluated before beginning renovations that could disturb it. Removing vermiculite is not automatically necessary. In some homes, leaving the insulation undisturbed and properly contained may be the more appropriate option. However, renovations involving attic access, ceiling removal, electrical upgrades, HVAC installations, roofing work, or wall modifications may create opportunities for asbestos fiber release. If removal is necessary, the EPA recommends using a properly trained and accredited asbestos abatement contractor. The assessment professional and removal contractor should be independent of one another to avoid conflicts of interest. Do not attempt to remove vermiculite insulation yourself. Improper handling can spread contamination and increase the potential for exposure. US EPA+1 8. Can a regular home inspection detect asbestos in vermiculite insulation? A standard residential home inspection is not the same as an asbestos inspection. Home inspectors may recognize the appearance of vermiculite and identify it as a potential environmental concern. However, identifying insulation visually does not establish whether asbestos is present. Asbestos identification and assessment require appropriate training, evaluation procedures, and, when applicable, laboratory analysis. There is also an important limitation with vermiculite: routine bulk sampling and standard polarized light microscopy (PLM) analysis may not reliably rule out asbestos contamination. For this reason, the EPA recommends treating vermiculite insulation as potentially asbestos-contaminated, even when a test result reports less than 1% asbestos. If vermiculite is discovered during a home inspection, consult an asbestos professional rather than relying solely on the general home inspection report. US EPA+1 9. Does vermiculite insulation affect my home's value or ability to sell? Vermiculite insulation does not automatically make a home unsafe, unsellable, or unsuitable for occupancy. However, its presence can become an important consideration during a real estate transaction. Potential buyer concerns include: Future asbestos abatement expenses. Restrictions or precautions associated with attic access. Additional costs associated with remodeling. Insulation replacement and energy-efficiency improvements. Environmental disclosures and buyer due diligence. Questions from lenders, insurers, or property managers. Having the material professionally evaluated and properly documented can help buyers and sellers understand the situation before closing. In some circumstances, leaving undisturbed vermiculite in place may be appropriate. Removal should be based on the property's circumstances and applicable requirements, not simply on the presence of the insulation. Environmental documentation can help reduce uncertainty, support informed negotiations, and prevent unexpected complications during a real estate transaction. 10. Who should I contact for vermiculite and asbestos testing near me? If you suspect vermiculite insulation in your attic, walls, or other areas of your home, contact US Environmental Testing to schedule an provides environmental inspection, sampling, and assessment services to help homeowners, homebuyers, sellers, real estate professionals, property managers, and contractors identify potential environmental concerns. Our services include: Residential and commercial asbestos inspections. Suspect building material identification. Appropriate asbestos bulk sampling and laboratory coordination. Vermiculite insulation evaluations. Pre-renovation and pre-demolition asbestos assessments. Environmental documentation for real estate transactions. Mold, lead-based paint, and indoor air quality assessments. Whether you are purchasing an older home, preparing a property for sale, or planning a renovation, understanding potential asbestos concerns before work begins is an important step toward protecting occupants and avoiding unnecessary exposure. Contact US Environmental Testing to discuss an asbestos or vermiculite evaluation. US Environmental Testing Know What's in Your Home. Professional environmental testing and assessment for residential and commercial properties. 331-462-2711 www.usenvi.com info@usenvi.com Serving homeowners, real estate professionals, property managers, and commercial clients. Additional Information: EPA – Protect Your Family from Asbestos-Contaminated Vermiculite Insulation EPA – My Attic Has Vermiculite Insulation in It. Am I at Risk? EPA – Buying a House with Vermiculite Insulation CDC/ATSDR – Preventing Asbestos Exposure EPA – Vermiculite Testing and PLM Analysis Blog 331-462-2711 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711. Asbestos Mold Radon Water Lead "Fast. Accurate. Experienced. Knowledgeable." Test-only. No remediation. No conflict of interest. Call Today - Test Tomorrow! Click to Call/Schedule Radon Testing Commercial, DCFS, Multi-Family, Real Estate, Residential. Call/Text 331-462-2711 - Same Week Appoinments Free Estimates - Accepts All Insurance What is Radon Gas? What is Radon Remediation? Radon Basics LEARN MORE Residential Measurements LEARN MORE Day Care Centers & Schools LEARN MORE Common Questions LEARN MORE Preparing for the measurement LEARN MORE Our Service Area Addison Aurora Barrington Bartlett Batavia Bellwood Bensenville Brookfield Burr Ridge Carol Stream Chicago Cicero Clarendon Hills Des Plaines Downers Grove Evanston Glen Ellyn Hanover Park Highland Park Hinsdale Itasca Schaumburg Skokie St. Charles Tinley Park Vernon Hills Villa Park Volo Westchester Western Springs Wheaton Wilmette Lake Zurich Lemont Lombard Maywood Mt. Prospect Naperville New Lenox Oak Brook Oak Park Rolling Meadows Types of Radon Tests Initial Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Follow-up Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Post-Mitigation Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Types of Radon Tests Commercial / Education ANSI/AARS - MFLB 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Follow-up Radon Test ANSI/AARS - MFLB 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Post-Mitigation Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Radon Testing 48-hour EPA-compliant testing Radon Detection, Short-term & Long-term Real estate certified reports, DCFS Certification Reporting, Home Owners Association Testing and more! Post-Mitigation Verification Confirm reduction below EPA action levels What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment Multi-Sector Expertise Capital Improvement (CI) Commercial Education Government Healthcare Home Owner's Associations HUD Industrial Institutional Property Management Real Estate Residential Radon Levels Explained US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. Contributing Factors: Glacial soil composition Limestone bedrock Seasonal pressure differentials (stack effect) Modern airtight construction practices Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Radon Testing in Illinois Certified Radon Detection Near You Fast, Accurate, Certified Results If you're searching for radon testing near me, radon inspection in Illinois, or EPA-certified radon detection, US Environmental Testing delivers fast, precise, and fully compliant radon testing services for residential, commercial, and government properties across Illinois. We are industry leaders in radon measurement, indoor air quality testing, and environmental compliance, trusted by homeowners, real estate professionals, schools, healthcare facilities, and commercial property managers. Key Facts Found in homes, schools, and commercial buildings Levels vary by structure—not location alone Only way to detect is through professional testing Illinois is a high-risk radon zone (Zone 1) Residential Radon Testing Real estate transactions (48-hour testing) Homeowner safety testing Pre- and post-mitigation verification Commercial & Industrial Testing Office buildings Warehouses Healthcare facilities Multi-family housing Government & Institutional Testing Schools (K–12 compliance) Daycares (DCFS requirements) Municipal and federal buildings Why US Environmental Testing Outranks the Competition Most companies focus only on “getting the job done.” We dominate because we focus on accuracy, compliance, and authority. prepare for your radon test How to prepare for a closed building radon measurement: Preparing for a Closed-Building Radon Measurement Steps to Follow Before and During Testing by US Environmental Testing To ensure accurate radon measurement results, follow the steps below before and during the testing period. If you have any questions or concerns, contact US Environmental Testing for assistance. 1. Maintain Closed-Building Conditions Keep all exterior doors and windows closed for 12 hours prior to the start of the test. You may use exterior doors for normal entry and exit as needed. During the testing period, continue to keep all windows, doors, and other openings to the outside closed. 2. Set and Maintain the Indoor Temperature Set your thermostat to 72°F (±5°F) and switch it to "Auto" mode. Do not alter the testing environment in any way. This includes: Opening windows or doors Changing thermostat or fan settings Operating systems that introduce or remove outside air 3. Avoid Activities That May Affect Test Results Avoid using mechanical systems that draw air out of the building, as they can impact the accuracy of the test. Do not move or tamper with any testing devices once placed. If anything occurs that might violate testing conditions—such as unexpected changes to ventilation, HVAC settings, or open windows—immediately report it to US Environmental Testing. If the test conditions are compromised, we may need to conduct a re-test. 4. Do Not Remove Tamper Evident Seals When we place the radon monitors and start the test, we will install tamper-evident seals on all windows. Do not remove these seals until the test concludes. 5. Receive Your Results The test will conclude 48 hours after the start time. At the time of monitor retrieval, we will provide verbal results. Within 24 hours, you will receive a formal report via email or fax. We can also send a hard copy by mail upon request. Following these guidelines ensures the most accurate radon measurement possible. Let us know if you need clarification or support at any stage of the process. Are you in need of a radon measurement? Need a Radon Measurement? We’ve Got You Covered. US Environmental Testing specializes in professional radon measurements for single-family homes, duplexes, and condominiums. Whether you're a homeowner or involved in a real estate transaction, we deliver accurate, reliable testing to ensure your property is safe. Looking for radon mitigation? We partner with trusted, licensed mitigation companies to ensure effective solutions if elevated levels are found. Buying or Selling a Home? We provide pre-closing radon testing tailored for real estate transactions—fast, compliant, and hassle-free. Has it been over two years since your last test? Contact Northern Illinois Radon, our dedicated radon division, to learn how regular testing protects your home and family from the long-term health risks of radon exposure. Breathe With Confidence. With our certified radon services, you’ll know your air is safe. We offer: Diagnostic Testing Follow-Up Testing New Construction & Remodeling Measurements Pre- and Post-Mitigation Measurements Short-Term & Long-Term Testing Options Protect Your Home from Radon — Fast, Accurate, Certified Testing Radon is the leading cause of lung cancer among non-smokers, and it could be present in your home right now. The Environmental Specialist of US Environmental Testing offer professional radon testing and mitigation planning services across Chicagoland and Illinois, delivering accurate results and fast solutions you can trust. Operating according to EPA, ANSI, HUD, and OSHA-aligned protocols. Serving EPA Regions 4,5, and 9. Your trusted contractor for asbestos building inspection and testing, Lead-based paint risk assessment, inspections and sampling, Mold risk assessments, inspections, and sampling, radon detections, Water Quality Testing and quality assurance reporting Radon Testing in Illinois | Certified Radon Detection Near You | US Environmental Testing Fast, Accurate, Certified Results If you're searching for radon testing near me, radon inspection in Illinois, or EPA-certified radon detection, US Environmental Testing delivers fast, precise, and fully compliant radon testing services for residential, commercial, and government properties across Illinois. We are industry leaders in radon measurement, indoor air quality testing, and environmental compliance, trusted by homeowners, real estate professionals, schools, healthcare facilities, and commercial property managers. Key Facts Found in homes, schools, and commercial buildings Levels vary by structure—not location alone Only way to detect is through professional testing Illinois is a high-risk radon zone (Zone 1) Our Radon Testing Services We provide professional-grade radon detection using continuous radon monitors (CRM) and laboratory-verified methods. Residential Radon Testing Real estate transactions (48-hour testing) Homeowner safety testing Pre- and post-mitigation verification Commercial & Industrial Testing Office buildings Warehouses Healthcare facilities Multi-family housing Government & Institutional Testing Schools (K–12 compliance) Daycares (DCFS requirements) Municipal and federal buildings Questions & Answers: Radon Detection Commercial, DCFS, Multi-Family, Real Estate, Residential. What is Radon? Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks, Sump pits, Utility penetrations, Crawlspaces and slab joints. Once inside, radon accumulates—especially in basements and lower levels. Health Risks: Why is Radon a Serious Threat? Radon is the #1 cause of lung cancer among non-smokers Linked to thousands of U.S. deaths annually Long-term exposure significantly increases risk There are no immediate symptoms, making testing critical What are Radon Action Levels? Radioactivity (and radon gas) results are measured in units of picocuries (pCi) [per liter of air] in the United States versus the International System of Units (SI), the Becquerel (Bq). A picocurie is a unit of radioactivity that is equivalent to one trillionth of a curie. In Perspective, one cure measures the rate of radioactive decay, specifically 3.7 x 10^10 disintegrations per second. What is an Action Level? The EPA recommends fixing homes when radon levels reach 4 pCi/L (150 Bq/m³) or higher. Since no known level of radon exposure is considered safe, the EPA also urges Americans to consider taking action when levels fall between 2 and 4 pCi/L (75–150 Bq/m³). (epa.gov) . Where does Radon come from? Radon is a natural soil gas. It can not be seen, smelled, or tasted; testing is the only reliable way to determine the concentrations of radon gas in any space. The Illinois Department of Emergency Management (IEMA) has established an action level for radon mitigation when levels radon levels exceed 4.0 pCi/L. Licensed professional radon measurements provide accurate results and help homeowners determine whether mitigation is necessary. Testing is particularly important during real estate transactions, basement finishing projects, and routine home safety evaluations. What Is Radon and Why Testing Is Critical Radon is a colorless, odorless radioactive gas that enters buildings through foundation cracks, sump pits, and soil gas pathways. It is the #1 cause of lung cancer among non-smokers, according to the EPA. What Is Considered a Dangerous Radon Level? 0–2.0 pCi/L → Low risk 2.0–3.9 pCi/L → Moderate risk 4.0+ pCi/L → EPA action level (mitigation recommended) When Should You Test for Radon? Buying or selling a home Every 2 years (recommended) After renovations or foundation changes Before finishing a basement If you’ve never tested before Where to get Radon Testing in Private Schools, Public Schools, and Charter Schools: Radon is a naturally-occurring radioactive gas, and exposure to it can cause lung cancer (radon is the second leading cause of lung cancer in the United States). It comes from the natural decay of uranium found in nearly all rock and soils; it typically moves up through the ground to the air above and into an occupancy through cracks and other holes in the foundation. ANSI/AARST MA-MFLB-2023: Protocol For Conducting Measurements Of Radon And Radon Decay Products In Multifamily, School, Commercial And Multi-Use Buildings details protocols when measuring radon concentrations in residential and non-residential occupancies. US ENVIRONMENTAL TESTING has over ten years' experience and hundreds of measurement projects that have included commercial, mixed use, large buildings and campuses, multi-family, and school buildings. If your organization is preparing an air quality study that may include asbestos, lead-based-paint, mold, radon detection, organic compound detection or water system analysis. Contact US Environmental Testing to request a free quote for services. How does radon detection work? Radon testing measures the concentration of radon gas in your home using short-term or long-term detectors that capture the gas or its radioactive decay products. A radon detector is a device that measures the concentration of radon gas in indoor air, typically reporting results in picocuries per liter (pCi/L). Radon is a naturally occurring radioactive gas that seeps into buildings from the ground, and because it’s colorless and odorless, a detector is the only way to know if it’s present. The EPA recommends taking action if your home’s radon level reaches 4 pCi/L or higher. All radon detectors rely on the same basic physics: radon is radioactive, and as it decays, it releases alpha particles. Detectors capture or count these particles to calculate how much radon is in the air. The differences between detector types come down to how they detect those particles and whether they give you a single reading after days or weeks, or continuous updates in real time. Detectors fall into two broad categories: passive and active. Passive detectors have no electronics or power source. They collect a sample over a set period and then get sent to a lab for analysis. Active detectors are electronic monitors that measure radon continuously and display results on a screen or send them to a phone app. Overview of Radon Testing Radon is a radioactive gas that naturally seeps into homes from soil, rock, and water. It is invisible, odorless, and tasteless, making testing the only way to detect its presence and assess potential health risks, such as lung cancer from long-term exposure . US Environmental Testing Services LLC radon detection services in Illinois Initial radon detection Follow-up radon detection Post-mitigation radon detection How does radon enter my home? Radon's primary entry point is through the soil. The amount of radon in the soil depends upon the soil chemistry and varies among houses and may be affected by weather, soil moisture and porosity, home construction, foundation types, and home pressure. Radon levels vary by region but are present in every State. Radon Levels Explained Radioactivity (and radon gas) results are measured in units of picocuries (pCi) [per liter of air] in the United States versus the International System of Units (SI), the Becquerel (Bq). A picocurie is a unit of radioactivity that is equivalent to one trillionth of a curie. In Perspective, one cure measures the rate of radioactive decay, specifically 3.7 x 10^10 disintegrations per second. What is an Action Level? The EPA recommends fixing homes when radon levels reach 4 pCi/L (150 Bq/m³) or higher. Since no known level of radon exposure is considered safe, the EPA also urges Americans to consider taking action when levels fall between 2 and 4 pCi/L (75–150 Bq/m³). (epa.gov) What are some entry points of radon into my home? Cracks in floors or walls of the foundation ● Gaps in suspended floors ● Openings around sump pumps and drains ● Wall cavities ● Construction joints ● Gaps around service pipes or wires ● Crawl spaces ● The water supply (Radon can affect bodies of water, specifically ground water) How to find radon mitigation services in Illinois? Radon mitigation professionals may be found on the Illinois Emergency Management Website. Northern Illinois Radon LLC and US Environmental Testing provides testing services for our clients and recommendations to trusted mitigation contractors. Who can do a basic radon home test in Illinois? Northern Illinois Radon, a division of US Environmental Testing (usenvi.com), provides professional radon home testing across Illinois. We place certified short-term or long-term radon detectors in your home, analyze the results in an accredited lab, and give you a clear report so you know whether your family is safe — or whether you need radon mitigation. Will my neighbor's radon levels impact the results or levels in my home? No. Radon levels vary from house to house. The only way to know if you have a radon problem is to conduct a test. "...Your home can have elevated levels of radon while your neighbor's home does not. Testing is the only way to determine if you have a problem. Radon testing is easy and inexpensive, and it could save your life. Thousands of lung cancer deaths could be avoided each year if homes with elevated radon underwent changes to reduce radon pollution." [3] Are homes built with radon resistant materials radon proof? The only way to identify if a dwelling has radon present is to conduct a short- or long- term radon test. All buildings will have radon present. Even homes with integrated Radon Resistant New Construction (RRNC), such as passive new construction pipes (PNPs). When explained further, Radon Resistant New Construction (RRNC), is simply the installation of the radon system pipes without the fan. Making the home "radon system ready," but certainly not resistant to its entry. *If buying from a builder, inquire about the reimbursement options available on new RRNC homes that require the home have a fan installed on the home's radon system to make it meet standards. Many builders offer free or discounted mitigation fan installation on new RRNC homes (if necessary). What is the EPA's Action Level for Radon and What Does it Mean? Radon in air is ubiquitous (existing or being everywhere at the same time). Radon is found in outdoor air and in the indoor air of buildings of all kinds. The EPA recommends homes be fixed if the radon level is 4 pCi/L (picocuries per liter) (150 becquerels per meter cubed (Bq/m3)) or more. Because there is no known safe level of exposure to radon, the EPA also recommends that Americans consider fixing their home for radon levels between 2 pCi/L and 4 pCi/L (75 - 150 Bq/m3) . The average indoor radon concentration for America’s homes is about 1.3 pCi/L (50 Bq/m3). It is upon this national average indoor level that the EPA based its estimate of 21,000 radon-related lung cancers a year. The average concentration of radon in outdoor air is .4 pCi/L (15 Bq/m3)or 1/10th of EPA's 4 pCi/L (150 Bq/m3)action level. Note: Countries worldwide have adopted action levels for radon exposures. Most are similar to the 4 pCi/L (150 Bq/m3) action level recommended in the United States. The action level observed should comply with the guidance of the country, state, or other local jurisdiction of authority where the test is being conducted. For more information, review Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Section 7.1 Action Level Guidance. (ANSI/AARST MA-MFLB-2023) (source: What is EPA's Action Level for Radon and What Does it Mean? | US EPA) What is considered a high/elevated radon level? There is no safe level of radon exposure. Radon gas is measured in picocuries per liter (pCi/L). The current airborne radon level at which the EPA and IEMA recommend action is 4.0 pCi/L. Citations: [1]http://www.epa.gov/schools/guidelinestools/ehguide/downloads/OCHP_Healthy%20SchoolsFactsheet.pdf [2]"A Physician's Guide | Radon | U.S. EPA." U.S. Environmental Protection Agency. http://www.epa.gov/radon/pubs/physic.html#WhatIs (accessed December 24, 2014). [3]"Health Risks | Radon | U.S. EPA." U.S. Environmental Protection Agency. http://www.epa.gov/radon/healthrisks.html (accessed December 24, 2014). Credits: NIR would like to thank the ACS, EPA, InterNACHI, NACHI and UIC for photos and graphs included in the website. I just need a basic radon test to protect my family, who can do this? Protecting your family from radon starts with one phone call. Northern Illinois Radon LLC — part of US Environmental Testing — is your local IEMA-licensed radon measurement professional serving the greater Chicago area and all of Northern Illinois. We have been helping Illinois families breathe safely since 2015. Radon Testing & Mitigation in the United States US Environmental Testing America’s Leading Authority in Radon Detection US Environmental Testing provides nationwide radon testing, radon inspection, and radon mitigation services, serving residential, commercial, government, and institutional clients across the United States. What are the different types of radon detection? Diagnostic measurements: an initial test performed to identify radon levels in a dwelling. Follow-up measurements: a second test performed to confirm levels previously detected; usually performed to verify the results of a home-test kit or to verify another company's test result. Short- and Long- term measurement: Short- term measurements last forty-eight hours to 90-days, while long term measurements tend to last 91 days to one year in duration. Pre- and post- mitigation measurements: a pre-mitigation test may be any test performed prior to mitigation solutions are performed. While post-mitigation testing includes a second test to determine efficacy of the radon mitigation system. The post-mitigation test shall be performed 24 hours to 30-days after the installation and activation of the mitigation system. DCFS Initial & Triennial License Renewal: Need DCFS-compliant radon testing? US Environmental provides certified radon detection for Illinois homes daycares and commercial daycares, ensuring fast results and official reports for your DCFS Licensing Agents. Test Every 3 years What agencies regulate radon testing? EPA Radon Guidelines ANSI/AARST Standards HUD Environmental Protocols Why Radon Is a Nationwide Public Health Issue Radon is present in all 50 states, with elevated levels found in: Illinois Pennsylvania Ohio Colorado Iowa Radon exposure is the leading cause of lung cancer among non-smokers in the U.S. Our Nationwide Radon Services ✔ Radon Testing, Real estate transactions, Residential testing, Commercial and industrial testing ✔ Government & Institutional Services, and Schools (K–12) ✔ Daycares, Healthcare facilities, Federal & municipal buildings Radon Mitigation Professional Radon Mitigation That Works — Guaranteed Reduction If your radon levels exceed EPA limits, US Environmental Testing provides advanced radon mitigation planning, contracting, and installation designed to reduce radon levels quickly, safely, and permanently. Mitigation solutions including high-performance sub-slab depressurization systems engineered to bring radon levels below 2.0 pCi/L in most homes, commercial buildings, day care centers, industrial sites, and government facilities. What is Radon Mitigation? Radon mitigation is the process of removing radon gas from your home or building by controlling airflow and soil gas entry points. The most effective method is: Radon levels above 4.0 pCi/L Failed real estate inspection Basement or crawlspace air concerns Long-term exposure risk concerns Sub-Slab Depressurization (SSD) Creates negative pressure beneath foundation Redirects radon gas safely above roofline Prevents entry into living space Mitigation with Results! Proven Results Significant reduction within 24 hours in most cases How quickly does radon mitigation work? Most radon systems reduce elevated radon within 24 hours. Does radon mitigation require maintenance? Minimal - fan monitoring and occasional inpesection. Can radon return after mitigation ? A properly installed mitigation system will provide continuous protection. Where do you provide radon testing service? National Service Areas (Service Area Map) EPA Region 4 Alabama, Mobile (Statewide) Florida, Tallahassee (Statewide) Georgia, Savanah (Statewide) Indiana, Indianapolis (Statewide) Kentucky, Lexington (Statewide) Mississippi, Jackson (Statewide) North Carolina, Raleigh (Statewide) South Carolina, Columbia (Statewide) EPA Region 5 Illinois, Chicago (Statewide) Indiana, Indianapolis (Statewide) Michigan, Detroit (Statewide) Minnesota, Minneapolis (Statewide) Ohio, Columbus (Statewide) Wisconsin, Madison (Statewide) EPA Region 9 American Samoa, Tafuna (Territory wide) Arizona, Phoenix (Statewide) California, Los Angeles (Statewide) Guam, Dededo (Statewide) Hawaii, Honolulu (All Islands) Nevada, Las Vegas (Statewide) Northern Mariana Islands, Saipan (All Islands) Blog 331-462-2711 Request Quote

About Us Finding Inspiration in Every Turn This is your About Page. This space is a great opportunity to give a full background on who you are, what you do and what your website has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. Our Story Every website has a story, and your visitors want to hear yours. This space is a great opportunity to give a full background on who you are, what your team does, and what your site has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. If you’re a business, talk about how you started and share your professional journey. Explain your core values, your commitment to customers, and how you stand out from the crowd. Add a photo, gallery, or video for even more engagement. Meet The Team Don Francis Founder & CEO Ashley Jones Tech Lead Tess Brown Office Manager Lisa Rose Product Manager Kevin Nye HR Lead Alex Young Customer Support Lead Our Clients

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Air Asbestos Lead Mold Radon Water Most homes in Glen Elllyn have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Clarendon Hills, Illinois Illinois is a high radon zone, and homes in Clarendon Hills are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Clarendon Hills, IL Trusted Radon Testing in Claredon Hills, Illinois If you're searching for licensed, insured environmental testing in Clarendon Hills, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Clarendon Hills, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Clarendon Hills, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Clarendon Hills, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Clarendon Hills, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Clarendon Hills, IL Asbestos survey commercial Clarendon Hills, IL Asbestos testing near me Clarendon Hills, IL Mold Mold inspection Clarendon Hills, IL Black mold testing Clarendon Hills, IL Basement mold inspection Clarendon Hills, IL Lead Lead paint testing Clarendon Hills, IL Lead risk assessment Clarendon Hills, IL Lead inspection daycare Clarendon Hills, IL Schedule Radon Testing in Clarendon Hills, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711. Air Asbestos Lead Mold Radon Water Most homes in Maywood have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Cicero, Illinois Illinois is a high radon zone, and homes in Cicero are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Cicero, IL Trusted Radon Testing in Cicero, Illinois If you're searching for licensed, insured environmental testing in Cicero, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as Cicero's leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Cicero, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Cicero, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Cicero, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Cicero, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Cicero, IL Asbestos survey commercial Cicero, IL Asbestos testing near me Cicero, IL Mold Mold inspection Cicero, IL Black mold testing Cicero, IL Basement mold inspection Cicero, IL Lead Lead paint testing Cicero, IL Lead risk assessment Cicero, IL Lead inspection daycare Cicero, IL Schedule Radon Testing in Cicero, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Most homes in Hanover Park have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Hanover Park, Illinois Illinois is a high radon zone, and homes in Hanover Park are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Hanover Park, IL Trusted Radon Testing in Hanover Park, Illinois If you're searching for licensed, insured environmental testing in Hanover Park, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Hanover Park, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Hanover Park, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Chicago, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Chicago, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Hanover Park, IL Asbestos survey commercial Hanover Park, IL Asbestos testing near me Hanover Park, IL Mold Mold inspection Hanover Park, IL Black mold testing Hanover Park, IL Basement mold inspection Hanover Park, IL Lead Lead paint testing Hanover Park, IL Lead risk assessment Hanover Park, IL Lead inspection daycare Hanover Park, IL Schedule Radon Testing in Hanover Park, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing and mitigation, and water assessments in Bartlett, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Most homes in Bartlett have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Bartlett, Illinois Illinois is a high radon zone, and homes in Bartlett are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Bartlett, IL Trusted Radon Testing in Bartlett, Illinois If you're searching for licensed, insured environmental testing in Bartlett, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Bartlett, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Bartlett, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Bartlett, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Chicago, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Bartlett, IL Asbestos survey commercial Bartlett, IL Asbestos testing near me Bartlett, IL Mold Mold inspection Bartlett, IL Black mold testing Bartlett, IL Basement mold inspection Bartlett, IL Lead Lead paint testing Bartlett, IL Lead risk assessment Bartlett, IL Lead inspection daycare Bartlett, IL Schedule Radon Testing in Bartlett, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing & mitigation, and water assessments in St. Charles, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Most homes in St. Charleshave never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in St. Charles, Illinois Illinois is a high radon zone, and homes in St. Charles are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in St. Charles, IL Trusted Radon Testing in St. Charles, Illinois If you're searching for licensed, insured environmental testing in St. Charles, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in St. Charles, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in St. Charles, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving St. Charles, Illinois and Nearby Areas & Regions: Service Areas We proudly serve St. Charles, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos asbestos inspection St. Charles, IL asbestos survey commercial St. Charles, IL asbestos testing near me St. Charles, IL Mold mold inspection St. Charles, IL black mold testing St. Charles, IL basement mold inspection St. Charles, IL Lead lead paint testing St. Charles, IL lead risk assessment St. Charles, IL lead inspection daycare St. Charles, IL Schedule Radon Testing in St. Charles, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

About Us Finding Inspiration in Every Turn This is your About Page. This space is a great opportunity to give a full background on who you are, what you do and what your website has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. Our Story Every website has a story, and your visitors want to hear yours. This space is a great opportunity to give a full background on who you are, what your team does, and what your site has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. If you’re a business, talk about how you started and share your professional journey. Explain your core values, your commitment to customers, and how you stand out from the crowd. Add a photo, gallery, or video for even more engagement. Meet The Team Don Francis Founder & CEO Ashley Jones Tech Lead Tess Brown Office Manager Lisa Rose Product Manager Kevin Nye HR Lead Alex Young Customer Support Lead Our Clients

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Most homes in Mt. Prospect have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Mt. Prospect, Illinois Illinois is a high radon zone, and homes in Mt. Prospect are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Mt. Prospect, Illinois Trusted Radon Testing in Mt. Prospect, Illinois If you're searching for licensed, insured environmental testing in Mt. Prospect, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Mt. Prospect, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Mt. Prospect, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Mt. Prospect, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Mt Prospect, Illinois , and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Mt. Prospect, IL Asbestos survey commercial Mt. Prospect, IL Asbestos testing near me Mt. Prospect, IL Mold Mold inspection Mt. Prospect, IL Black mold testing Mt. Prospect, IL Basement mold inspection Mt. Prospect, IL Lead Lead paint testing Mt. Prospect, IL Lead risk assessment Mt. Prospect, IL Lead inspection daycare Mt. Prospect, IL Schedule Radon Testing in Mt. Prospect, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 724-467-7328 Request Quote