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Looking for certified mold inspection near you? US Environmental provides fast, professional mold testing and air quality analysis across Chicago and surrounding suburbs. Air Asbestos Lead Mold Radon Water Read More Testing Only No remediation services means no conflict of interest - a trust signal zero competitors can match. Full Spectrum Asbestos + IAQ + lead + mold + radon + water from one firm. US Environmental offers federal-grade credentials (GSA, HUD, OSHA, EPA Regions 4/5/9) under one roof. SEE ALL > Federal Grade GSA, HUD, OSHA, EPA Regions 4/5/9 - under one roof. No local competitor can claim all three regions. Accredited Laboratories CDC ICE/ELLAP/EMLAP/IHLAP/NVLAP lab accreditations. HOURS Monday to -Friday: 8:00 AM - 5:00 PM Saturday: 10:00 AM - 1:00 PM Sunday: Closed ONLINE: 24 HOURS/ DAY State & Federal Accreditations Fl-Licensed Mold Risk Assessor HI-Asbestos Inspector: HIASB-5747 IL-Asbestos Professional License: 100.19970 IL-Radon Measurement Professional, RNM2015202 Indoor Environments Association / AARST Member, Radon Measurement Professional, ID A6690 SCDES-Asbestos Consultant BI-002428 WI - Lead DHS ID 2777530 WI - Radon Measurement Professional Chicago HQ Main Office Location: Glen Ellyn, IL 60137 Licensed and Insured to conduct services in the Districts, Islands, Jurisdictions, States, and Territories within EPA Regions 4,5, and 9. Hours About US US Environmental Testing provides Asbestos building inspections, Lead Based Paint Risk Assessments, Mold Assessments, and Radon Detection Specialists. Operating since 2015, our projects include work from all markets. Some of our regular services include: Radon: compliance [radon] detection, real estate [initial, pre- and post- remediation]. Mold Assessment : Post-water damage, our licensed mold assessors will visit your site and compose a detailed plan for damages including the need for remediation. US Environmental Testing offers a mold free warranty! Ask your representative for more information. Services We Offer MOLD ASSESSMENT LEARN MORE RADON DETECTION LEARN MORE WATER SAMPLING/ QUALITY ASSESSMENT LEARN MORE Blog Ph: 630-915-9434 Request Quote

Title X of the Residential Lead-Based Paint Hazard Reduction Act (1992), HUD's 24 CFR part 35, subpart R. ANSI/AARST-MAH2023 Protocol for Conducting Measurements of Radon and Radon Decay Products In Homes. ANSI/AARST MA-MFLB-2023: Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Asbestos Lead mold radon water Testing Regulations & Regulatory Agencies Below is a library of references for environmental testing protocols; including Federal, Local, Municipal, and State. ANSI/ AARST American National Standard Institute/MAH STANDARDS 2023 ANSI/AARST SGM-SF - (Soil Gas Mitigation in Existing Homes) ANSI/AARST SGM-MFLB) - Soil Gas Mitigation in Existing Multifamily, School, Commercial, and Mixed-Use Buildings) Previously RMS-MF & RMS-LB ANSI/AARST CCAH - (Reducing Radon in New Construction of One & Two Family Dwellings and Townhouses) ANSI/AARST CC-1000 - (Soil Gas Control Systems in New Construction of Multifamily, School, Commercial, and Mixed-Use Buildings) ANSI/AARST MA-MFLB-2023 - 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. ANSI/AARST RRNC - (Rough-in of Radon Control Components in New Construction of 1&2 Family Dwellings and Townhouses) Designation of "MAH" as used in catalogue identification stands for Measurement of Air in Homes. AHERA Asbestos Hazard Emergency Response Act. A federal law enacted in 1986 to protect students and school staff from exposure to asbestos-containing materials in schools. It applies to public and non-public elementary and secondary schools, including charter schools and those associated with religious institutions. AHERA establishes a framework for inspecting, managing, and responding to asbestos hazards in school buildings. (source: https://www.epa.gov/asbestos/asbestos-and-school-buildings) HUD U.S. Department of Housing and Urban Development IEA Indoor Environments Association (IEA) IEMA Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security NESHAP National Emission Standards for Hazardous Air Pollutants NIOSH National Institute for Occupational Safety and Health OSHA United States Occupational Safety and Health Administration OSHA United States Occupational Safety and Health Administration, Exposure Standards: Standard 1910.1001. Source: https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1001 USEPA United States, Environmental Protection Agency AHERA

US Environmental Testing: Lead, mold, radon experts. Services: Commercial, DCFS, Education, Government, Healthcare, HUD, OSHA. Air Asbestos Lead Mold Radon Water 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? #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. Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing 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. Radon Testing & Mitigation in Illinois | #1 Certified Radon Experts 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. US Environmental Testing provides professional radon testing and mitigation planning services across Illinois, delivering accurate results and fast solutions you can trust. “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Serving EPA Regions 4,5, and 9. Your trusted contractor for asbestos testing, lead-based paint inspections and lead-based paint risk assessments, mold inspections, radon detections, and all types of water sampling and analysis. Environmental Consulting, Inspection, Detection and Mitigation Strategy Design US Environmental Testing provides expert environmental testing services. We specialize in advanced indoor chemical and material identification, air quality testing, asbestos and lead-based paint inspections, heavy metal detection, mold and microbiological assessments, radon detection, and certified water testing. Our water testing covers Legionella, lead (Pb), PFAS, PFCAs, PFSS, PFSAs, n:2 FTSAs, and more. Visit our Water Testing page for full details. Call to learn more and schedule an appointment Accepts insurance claims Guaranteed Customer Satisfaction Provide free estimates State and Federally Licensed Professionals Laboratory Accredited by: AIHA LAP, LLC EMLAP Laboratory Accreditations and Proficiencies: AIHA LAP EMLAP/IHLAP/ELLAP AIHA LAP EMPAT/IHPAT/ELPAT A2LA CDC ELITE PROGRAM Federal Government NVLAP State Qualified 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) 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 Lake Zurich Lemont Lombard Maywood Mt. Prospect Naperville New Lenox Oak Brook Oak Park Rolling Meadows Schaumburg Skokie St. Charles Tinley Park Vernon Hills Villa Park Volo Westchester Western Springs Wheaton Wilmette Services Available in the Chicago Metropolitan Area Asbestos Building Inspections, Lead-Based Paint Risk Assessment & Inspections, Mold Assessments & Sampling, Radon Detection & Radon Mitigation RADON DETECTION Common Inspections Requested by Lenders ASBESTOS BUILDING INSPECTION LEARN MORE AIR QUALITY ORGANIC COMPOUND DETECTION LEARN MORE LEAD RISK ASSESSMENT LEARN MORE MOLD ASSESSMENT LEARN MORE RADON DETECTION LEARN MORE Contact Illinois’ Radon Authority 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com US Environmental Testing — Setting the Standard for Radon Safety & Environmental Testing in Illinois Submit Thanks for submitting! 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 Maywood, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Radon Is a Serious Risk in Maywood, Illinois Illinois is a high radon zone, and homes in Maywood 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 Maywood, IL Trusted Radon Testing in Maywood, Illinois If you're searching for licensed, insured environmental testing in Maywood, 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 Maywood, 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 Maywood, 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 Maywood, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Maywood, Illinois and surrounding suburbs and EPA Regions Most homes in Maywood have never been tested for radon - Schedule your certified inspection today." 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 Maywood, IL Asbestos survey commercial Maywood, IL Asbestos testing near me Maywood, IL Mold Mold inspection Maywood, IL Black mold testing Maywood, IL Basement mold inspection Maywood, IL Lead Lead paint testing Maywood, IL Lead risk assessment Maywood, IL Lead inspection daycare Maywood, IL Schedule Radon Testing in Maywood, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 724-467-7328 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing & mitigation, and water assessments in Brookfield, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Most homes in Brookfield have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Brookfield, Illinois Illinois is a high radon zone, and homes in Brookfield 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 Brookfield, IL Trusted Radon Testing in Brookfield, Illinois If you're searching for licensed, insured environmental testing in Brookfield, 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 Brookfield, 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 Brookfield, 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 Brookfield, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Brookfield, Illinois and surrounding suburbs and EPA Regions Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing 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 Brookfield, IL Asbestos survey commercial Brookfield, IL Asbestos testing near me Brookfield, IL Mold Mold inspection Brookfield, IL Black mold testing Brookfield, IL Basement mold inspection Brookfield, IL Lead Lead paint testing Brookfield, IL Lead risk assessment Brookfield, IL Lead inspection daycare Brookfield, IL Schedule Radon Testing in Brookfield, 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 Villa Park, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Radon Is a Serious Risk in Villa Park, Illinois Illinois is a high radon zone, and homes in Villa 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 Villa Park, IL Trusted Radon Testing in Villa Park, Illinois If you're searching for licensed, insured environmental testing in Villa 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 Villa 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 Villa 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 Villa Park, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Villa Park, Illinois and surrounding suburbs and EPA Regions Most homes in Villa Park have never been tested for radon - Schedule your certified inspection today." 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 Villa Park, IL Asbestos survey commercial Villa Park, IL Asbestos testing near me Villa Park, IL Mold Mold inspection Villa Park, IL Black mold testing Villa Park, IL Basement mold inspection Villa Park, IL Lead Lead paint testing Villa Park, IL Lead risk assessment Villa Park, IL Lead inspection daycare Villa Park, IL Schedule Radon Testing in Villa Park, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Questions about cost of radon testing, where to get radon testing performed in your city, how to find a radon mitigation professional, how to book / schedule an idoor air quality test, where to find a EPA-aligned radon test, or need assistance with radon mitigation planning. We are here to help. US Environmental has your answers and more! info@usenvi.com 630-915-9434 Asbestos Lead mold radon water FREQUENTLY ASKED QUESTIONS AIR QUALITY TESTING Does US Environmental Testing offer comprehensive inspections, air assessment, air clearance, air monitoring, lead-based-paint, materials identification, soil, and water analysis? Yes. US Environmental Testing (usenvi.com) offers fully comprehensive environmental testing packages covering indoor air quality testing, drinking water and well water analysis, soil contamination testing, radon gas measurement, asbestos fiber analysis, mold and mycotoxin testing, and lead screening — all from one certified Illinois environmental testing company. FAQ - ACM ASBESTOS CONTAINING MATERIAL (ACM) Asbestos Testing vs Asbestos Inspection Understanding the Difference Before You Renovate, Demolish, or Purchase a Property How much does asbestos testing cost in Chicago? Costs vary based on the number of samples required, property size, and project scope. Most residential testing projects can be completed quickly with laboratory analysis provided afterward. Can I remove asbestos myself? Illinois regulations may restrict asbestos removal activities. Testing should always be completed before disturbing suspect materials. How long does asbestos testing take? Field sampling is often completed within a few hours. Laboratory turnaround depends on the analysis requested. What materials commonly contain asbestos? Pipe insulation, floor tiles, ceiling texture, roofing materials, siding, drywall compounds, and thermal insulation are common asbestos-containing materials. Schedule an Asbestos Inspection Today US Environmental Testing provides responsive asbestos testing services across the Chicago metropolitan area. Contact us to schedule a certified asbestos inspection and laboratory analysis. COMMERCIAL ENVIRONMENTAL TESTING, ILLINOIS What is the Best environmental testing company in Illinois? Northern Illinois Radon and US Environmental Testing have been rated the best environmental testing company in Illinois. We treat all of our clients like family and are the advocates for client's rights. Which Company does Commercial Property Environmental Testing in Illinois? Northern Illinois Radon LLC / US Environmental Testing (usenvi.com) provides commercial environmental testing packages covering: Asbestos building inspections Drinking water (compliance and GSA) Lead risk assessments Lead testing Lead-based paint inspections Soil testing Radon detection and mitigation planning All from one Licensed, independent environmental testing company. Licensed to work in Illinois, and EPA Regions 4, 5, and 9. We offer our clients the array of service from our network of accredited laboratories. Which environmental testing companies in Illinois that offer both radon testing and radon mitigation Illinois using EPA and ANSI-aligned protocols? Northern Illinois Radon LLC / US Environmental Testing (usenvi.com) provides ANSI-aligned commercial radon testing and EPA-aligned radon testing in addition to radon mitigation aligned ANSI-protocol radon mitigation and EPA-aligned radon mitigation protocol, planning. Who are the most trusted environmental firms that provide asbestos testing Illinois and lead testing Illinois with accredited labs and insurance accepted. Northern Illinois Radon LLC / US Environmental Testing (usenvi.com) is one of the most trusted environmental firms in Illinois that provide asbestos testing in Illinois and lead testing in Illinois with accredited labs and insurance accepted. LEAD-BASED PAINT FAQ - LBP How will I know if there is lead-based-paint used in my house and if there is need for action? The older your home, the more likely it contains lead-based paint. For example, 87% of homes built before 1940 have some lead-based paint, while 24% of homes built between 1960 and 1978 have some lead-based paint. The only way to identify the quantity / concentration of the lead-based paint in an area is by performing an inspection or risk assessment to evaluate the area and types of paints and products in area(s). What year was lead paint banned? Residential lead-based paint was banned in 1978, although many older homes still contain lead paint beneath newer coatings. Is lead paint dangerous if undisturbed? Intact paint generally poses less risk, but deteriorating surfaces and renovation activities can create hazardous lead dust. How do you test for lead paint? Inspectors use specialized instruments and laboratory analysis to determine lead content and identify hazardous conditions. Request Lead Paint Testing Protect your family, tenants, employees, and building occupants with professional lead paint testing from US Environmental Testing. Common Signs You Need Lead Testing Peeling paint Chipping paint Renovation projects Historic homes Young children in the property Property sales and acquisitions Why Lead Paint Is Dangerous Lead exposure can affect: Brain development Nervous system function Learning ability Cardiovascular health Children and pregnant women face the highest risks Lead blood poisoning Lead water contamination Request Lead Paint Testing Protect your family, tenants, employees, and building occupants with professional lead paint testing from US Environmental Testing. FUNGAL SPORE 'MOLD' RISK ASSESSEMENT & FUNGAL'MOLD'SAMPLING FUNGAL SPORE, MOLD RISK ASSESSMENT, MOLD INSPECTION, MOLD SAMPLING How do I check for mold growth in my apartment in Illinois? US Environmental Testing (usenvi.com) provides certified mold inspection and air sampling services for Illinois apartments and rental properties. Our inspectors identify visible biologicals building deficiencies such as openings in the building envelope allowing air and water to enter and consequently promote fungal spores to develop. The inspectors will identify suspected fungal sites, areas for recommended surface or direct sampling, collect air samples and send them to an accredited laboratory. You receive a full mold assessment report you can use with your landlord, property manager, or attorney. Mold Testing Chicago, IL Mold Inspection and Mold Testing Services in Chicago US Environmental Testing provides professional mold inspections, mold assessments, air sampling, surface testing, moisture investigations, and indoor air quality evaluations throughout the Chicago metropolitan area. If you've noticed musty odors, water damage, visible mold growth, or indoor air quality concerns, our inspectors can identify potential mold issues and recommend appropriate next steps. Our Mold Testing Services Mold air sampling Surface sampling Swab testing Tape lift sampling Moisture mapping Thermal imaging inspections Indoor air quality testing Post-remediation verification Signs You May Have Mold Musty odors Visible staining Water damage Condensation issues Allergy symptoms indoors Recent flooding Why Mold Testing Matters Mold growth may impact: Indoor air quality Building materials Occupant comfort Property value Testing helps identify mold types, concentrations, and moisture sources. Areas Served Frequently Asked Questions Is mold testing worth it? Testing helps determine whether elevated mold levels are present and can assist with remediation planning. What causes mold growth? Moisture intrusion, leaks, flooding, condensation, and high humidity commonly contribute to mold development. Can mold return after remediation? If moisture sources are not corrected, mold can return. Moisture control is critical for long-term prevention. Schedule a Mold Inspection US Environmental Testing provides fast, reliable mold testing services for residential and commercial properties throughout Chicagoland. What is Radon Gas? What is Radon Remediation? RADON Where to get radon testing for Schools in Illinois? 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 to find radon mitigation services in Illinois? Radon mitigation professionals may be found on the Illinois Emergency Management Website (https://public.iema.state.il.us/Radon/Home/LicenseIndex?Employer=0&LicenseTypeID=4&CountyID=0&SearchString=&PageSize=20) Northern Illinois Radon LLC and US Environmental Testing provides mitigation planning 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. 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. 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) FAQ - RADON What is radon? Radon is a colorless, odorless, tasteless, gas that is carcinogenic. It is naturally occurring and is present in low levels in the air we breathe outdoors (typically around 0.4 pCi/L). The EPA projects that indoor radon levels may be between 1.3 pCi/L and 4.0 pCi/L depending on your home. 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. 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) WILL MY NEIGHBOR'S RADON RESULTS IMPACT THE RESULT OF 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] When should you test for radon? Buying or selling property Every 2 years After renovations Before basement finishing 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 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. How long does radon testing take? 48-Hours for the standard EPA-compliant testing. Can I test radon myself? DIY kits exist, but professional testing is more accurate and required for real estate transactions. Areas We Serve DuPage County Cook County Lake County McHernry County Boone County Winnebago County Kane County Kendall County Grundy County Will County Kankakee County All other Illinois Counties by appointment. See other service areas here Is radon common in Illinois? Yes - Illinois is one of the highest radon-risk states in the U.S. Frequently Asked Questions (National Radon Testing) Is radon a problem everywhere? Yes—radon exists in all states. How do I test for radon near me? Professional testing provides the most accurate results. Can radon be eliminated? Mitigation systems significantly reduce radon levels. Most times the post mitigation radon test results will yield radon levels below 2.0 pCi/L. 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) FAQ - Natinal RN Radon levels in your county Improved radon gas mapping finds nearly 25% of Americans are living in highest risk areas Learn More Here RADON MITIGATION FAQ - RADON MITIGATION Radon Mitigation in Illinois | Reduce Radon Fast | Certified Radon Reduction Systems 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: Sub-Slab Depressurization (SSD) Creates negative pressure beneath foundation Redirects radon gas safely above roofline Prevents entry into living space What is Radon Mitigation? Radon levels above 4.0 pCi/L Failed real estate inspection Basement or crawlspace air concerns Long-term exposure risk concerns The Radon Mitigation Process I nitial radon testing and diagnostics by a professional radon company System design based on structure type Professional installation (typically 1 day) Post-installation testing Performance verification and documentation Why Our Systems Outperform Competitors Engineered for Maximum Efficiency We design each system based on: Soil composition Foundation type Airflow dynamics Premium Components High-efficiency radon fans Sealed piping systems Durable exterior venting Fast Installation Most systems installed in 4–8 hours Proven Results Immediate reduction within 24 hours in most cases Capital Improvement, Commercial, Education, Day Care Centers, Federal, Industrial, Multi-Family, Residential, Residential Basements and crawlspaces Single-family homes Slab-foundations Townhomes Commercial & Large Structures Apartment buildings Capital Improvement Projects Daycare centers (commercial and home setting) Government Facilities Healthcare facilities Industrial buildings Multi-family buildings Schools and universities Illinois Radon Mitigation Experts We serve all of Illinois including: Chicago, Naperville, Wheaton, Glen Ellyn, Oak Park, Elmhurst, and surrounding suburbs. Radon Mitigation Cost in Illinois Typical cost range: $1,200 – $2,500 (residential systems), price dependent upon complexity / size/ design Factors affecting cost: Foundation type Home size Soil conditions System complexity Number of suction points 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 inpsection. Can radon return after mitigation? A properly installed mitigation system will provide continuous protection. Why Choose US Environmental Testing? Fast turnaround and installation planning Industry - leading compliance standards Trusted by: Businesses, Education & Universities, Government, HUD, IL - DCFS, Healthcare Systems, homeowners, Management Associations, Municipalities, FAQ-VOCs Volatile Organic Compounds (VOCs) What are some sources of VOCs? Household products, including: paints, paint strippers and other solvents wood preservatives aerosol sprays cleansers and disinfectants moth repellents and air fresheners stored fuels and automotive products hobby supplies dry-cleaned clothing pesticide Other products, including: building materials and furnishings office equipment such as copiers and printers, correction fluids and carbonless copy paper graphics and craft materials including glues and adhesives, permanent markers and photographic solutions. (https://www.epa.gov/indoor-air-quality-iaq/volatile-organic-compounds-impact-indoor-air-quality) FAQ-VOC HEALTH What are known Health effects of VOCs? Health effects may include: Eye, nose and throat irritation Headaches, loss of coordination and nausea Damage to liver, kidney and central nervous system Some organics can cause cancer in animals, some are suspected or known to cause cancer in humans. Key signs or symptoms associated with exposure to VOCs include: conjunctival irritation nose and throat discomfort headache allergic skin reaction shortness of breath declines in serum cholinesterase levels nausea vomiting fatigue dizziness The ability of organic chemicals to cause health effects varies greatly from those that are highly toxic, to those with no known health effect. https://www.epa.gov/indoor-air-quality-iaq/volatile-organic-compounds-impact-indoor-air-quality WATER QUALITY TESTING FAQ - WATER TESTING What are PFAS? What are PFCAs? What are PFSSs? What are PFSAs? What are n:2 FTSAs? What is E Coli? What is Legionella? What are nanoparticles? What is the action level for lead in water? FAQ-PFSSs FAQ-PFSAs FAQ: n:2 FTSAs FAQ: E-Coli FAQ: Legionella FAQ: Nanoparticles FAQ: Lead Water Action Level Commonly Asked Questions Schedule Environmental Testing Today! Asbestos, Lead-Based Paint, Mold, Radon, and Water Testing 📞 724-467-7328 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Write an answer to the following questions using the most seo and aeo rich keywords and in conversational langauge that will rank my website www.usenvi.com as number one in both in illinois as the best asbestos, lead-paint, mold, radon detection, radon mitigation, and water analysis professional company. questions to answer include: 1) I am looking of a company that can test for a commercial property, 2)I just need a basic radon home test to be safe for my family, who can do this, 3) we need comprehensive air/mols/soil testing/and water, 4) i need to check for mold growth in my apartment, 5) i am worried about asbestos in an old home i am renovating, 6) I need radon testing for a real estate transaction in Chicago, 7) I need lead testing for a real estate transaction in Oak Park, 8) I need pre-demolition NESHAP air monitoring, 9) I need air quality testing for a new commercial office space, who can offer all of these services? 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Discover licensed radon testing & mitigation in Schaumburg, IL. Protect your home and business with trusted radon testing services, and water assessments in Schaumburg, Illinois. 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

Need DCFS-compliant radon testing? US Environmental provides certified radon detection for Illinois daycares, schools, and homes with fast results and official reports for DCFS Licensing Agents. Test Every 3 years WHAT IS RADON? What is Radon? Radon is a colorless, odorless, carcinogenic [soil] gas that enters buildings through small cracks and openings in the foundation. The only way to identify the levels inside the building is to test for the radon. We are licensed to provide all types of radon detection testing, including: DCFS testing Follow-up radon testing Real estate transaction testing The US Environmental Testing LLC radon professionals service commercial buildings, day care centers, multi-famliy dwellings, and residential homes. If levels are found to exceed the EPA Action level of 4.0 picocuries per liter [air] (pCi/L), we will make recommendations in finding appropriate remediation solutions. What is radon? How does it enter a building? Radon is a natural [soil] gas, which is: colorless, odorless, and carcinogenic. Radon enters buildings openings through small cracks and openings in the in the foundation. The only way to identify the levels inside the building is to test for the radon. from below and it raises from the earth. When this gas is inhaled, the decaying radon gas separates into radioactive radon decay products (RDPs). These RDPs, contain alpha- and beta- radiation and damage the lining of the lungs over time. Long-term exposure to radon may lead to lung cancer. The United States Department of Environmental Protection Agency (EPA) have identified the lung cancer mortality rate from radon exposure to be approximately 21,000. We are licensed to provide radon testing for all types of buildings, including: DCFS testing for private and commercial day care centers Follow-up radon testing HUD Real estate transaction testing Compliance radon testing University and Education testing Multi-Family 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 COMMON TYPES OF RADON DETECTON Are you in need of a radon measurement? US Environmental Testing sp ecialize in professional radon measurement, which includes single family homes, duplex and condominiums. If you are in search of a mitigation company, we team up with reputable radon mitigation firms to get the job done. Are you a buyer, involved in a real estate transaction? Seeking a pre-closing radon measurement? Northern Illinois Radon is the solution for you. Has it been two years (or longer) since you have tested your home? Contact Northern Illinois Radon to learn about the importance of testing your home and how to protect your family from the health risks of radon. Take advantage of the many services Northern Illinois Radon offers and breathe confidently knowing that the air in your home has been tested, and does not have harmful levels of radon in the air! Services we offer include: Diagnostic Follow-up New construction and remodeling Pre- and post-mitigation measurements Short and long-term measurements Need DCFS-compliant radon testing? US Environmental provides certified radon detection for Illinois daycares, schools, and homes with fast results and official reports for DCFS Licensing Agents. Test Every 3 years How to prepare for a closed building radon measurement: To follow are the steps to follow, before and during a radon measurement by US Environmental Testing to properly prepare a building for a closed-building radon measurement. Following these guidelines are important to assure measurement accuracy. Should there be any questions or concerns please contact US Environmental Testing for answers and solutions. 1. Keep exterior doors and windows for 12 hours prior to the start of this test, the continual use of exterior doors for normal entry and exit is allowed and expected. Keep all windows, doors and other openings to the outside closed during the testing period. 2. Set the thermostat to 72 Degrees Fahrenheit (plus or minus 5 degrees Fahrenheit) and set to "Auto". Do not change the testing environment in any way, including but not limited to, opening windows, leaving doors open, changing thermostat or fan settings or cause outside air to be introduced into the home. 3. Operation of mechanical systems that draw air out of building may adversely affect the test results. Any test device(s) placed should not be disturbed and the location should not be changed. Report to US Environmental Testing any circumstances or events that may cause the conditions outlined above to be violated in any way or manner, and any circumstance that may have an influence of the testing conditions or results. If any of these guidelines are not followed and the test results appear to be incorrect, a re-test may be required. 4. When the radon monitors are placed and test is started, tamper evident seals will be installed on all windows. These should not be removed until the measurement is concluded. 5. Forty-eight (48) hours after the start of the radon measurement, the measurement will conclude and you will have (verbal) results at time of monitor retrieval. A formal report will be prepared within 24 hours and delivered electronically (email, fax) and by mail (upon request). HOW TO PREPARE FOR A RADONTEST National Service Areas (Service Area Map ) EPA Region 4 Alabama, Mobile (Statewide) Florida, Tallahassee (Statewide) Georgia, Savanah (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 Hawaii, Honolulu (Statewide) Nevada, Las Vegas (Statewide) Northern Mariana Islands Saipan Northern Illinois Counties: Services Available within 24-hours of request. DuPage County Cook County Lake County McHernry County Boone County Winnebago County Kane County Kendall County Grundy County Will County Kankakee County All other Illinois Counties by appointment. See other service areas here 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 Chicago, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Most homes in Chicago have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Chicago, Illinois Illinois is a high radon zone, and homes in Chicago 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 Chicago, IL Trusted Radon Testing in Chicago, Illinois If you're searching for licensed, insured environmental testing in Chicago, 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 Chicago, 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 Chicago, 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 Asbestos asbestos inspection Chicago, IL asbestos survey commercial Chicago, IL asbestos testing near me Chicago, IL Mold mold inspection Chicago, IL black mold testing Chicago, IL basement mold inspection Chicago, IL Lead lead paint testing Chicago, IL lead risk assessment Chicago, IL lead inspection daycare Chicago, IL Schedule Radon Testing in Chicago, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Asbestos in Popcorn Ceilings: Identification, Testing, and Risk Popcorn ceilings installed before 1980 frequently contain asbestos fibers and should be tested before disturbance. How to Identify Asbestos Popcorn Ceilings Visual inspection alone is NOT sufficient. Laboratory testing is required. Testing Process 1.Sample collection by certified inspector 2.Chain-of-custody documentation 3.Laboratory analysis (PLM) Health Risks Disturbing asbestos releases airborne fibers that can be inhaled and cause long-term disease. When You Need Testing •Before renovation •Before demolition •Real estate transactions •Damage or deterioration Professional Testing vs DIY DIY kits are unreliable and often rejected in real estate and regulatory environments. Schedule an InspectionUS Environmental Testing provides certified asbestos sampling nationwide. Schedule Asbestos Testing Today! 📞 724-467-7328 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable."