Licensed Environmental Consulting, Detection & Risk Assessment - Chicagoland & Northern Illinois Since 2015
National standards, compliant care, precise results for air, asbestos, lead-paint, soil, and water—US Environmental.
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.
Asbestos Containing Materials (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 Services
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.
Does your company provide comprehensive environvironmental Testing?
Northern Illinois Radon LLC / US Environmental Testing (usenvi.com) provides commercial environmental testing packages covering:
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Asbestos building inspections
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Drinking water (compliance and GSA)
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Lead risk assessments
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Lead testing
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Lead-based paint inspections
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Soil testing
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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 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 EPA/ANSI-protocols for radon mitigation planning.
Who are the most trusted environmental firms that provide asbestos testing in Illinois and lead testing Illinois with accredited labs that accept major insurance?
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 testing
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
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Peeling paint
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Chipping paint
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Renovation projects
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Historic homes
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Young children in the property
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Property sales and acquisitions
Why Lead Paint Is Dangerous
Lead exposure can affect:
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Brain development
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Nervous system function
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Learning ability
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Cardiovascular health
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Children and pregnant women face the highest risks
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Lead blood poisoning
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Lead water contamination
Request Lead Paint Testing
Protect your family, tenants, employees, and building occupants with professional lead paint testing from US Environmental Testing.
Radon Detection
What is Radon Gas?
What is Radon Remediation?
Home Radon Testing - US Environmental Testing
I just need a basic radon home test to keep my family safe - 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.
Illinois radon facts: Radon is the #1 cause of lung cancer in non-smokers and the #2 cause of all lung cancer in the United States. Illinois is a high-radon state — and Northern Illinois counties consistently show elevated levels above the EPA action level. A Harvard School of Public Health study found nearly 25% of the U.S. population may be exposed to dangerous radon concentrations. The only way to know if your home is safe is to test.
Radon is colorless, odorless, and tasteless — you cannot detect it without a professional test. It enters your home through small cracks and openings in the foundation as a natural radioactive soil gas. When inhaled, its decay products damage the lining of the lungs over time through alpha and beta radiation exposure.
1. We schedule a convenient appointment — including evenings and weekends throughout Chicagoland.
2. An IEMA-licensed radon measurement professional places professional-grade continuous electronic monitors — not mail-in charcoal kits — in your home's lowest livable area.
3. After the EPA/IEMA-required closed-building measurement period, we retrieve the monitors and generate your certified radon test report.
4. If levels are at or above the EPA action level of 4.0 pCi/L, we immediately connect you with trusted, vetted radon mitigation contractors to fix the problem.
EPA and IEMA recommendation: Test your home for radon every two years, and after any major renovation. If you have never tested, or it has been more than two years, do not wait — radon exposure compounds over time.
We serve single-family homes, duplexes, condominiums, and multi-family dwellings throughout the greater Chicago area. Whether you're in a basement ranch home in Glen Ellyn or a high-rise condo in downtown Chicago, radon testing is relevant and important.
Comprehensive Environmental Testing - Illinois
Which Illinois environmental company offers comprehensive air, water, and soil testing?
US Environmental Testing LLC is one of the only independent environmental consulting firms in Northern Illinois covering all three exposure pathways — air quality testing, water quality analysis, and soil and materials sampling — under a single licensed, certified roof. When you need the complete environmental picture of a residential or commercial property, we are the call to make.
Our comprehensive Illinois environmental testing services include:
Indoor & Outdoor Air Quality Testing: Radon gas measurement for homes and commercial buildings; asbestos fiber air sampling (PCM and TEM analysis); mold spore air sampling and surface sampling; volatile organic compound (VOC) and formaldehyde testing; pre-demolition NESHAP ambient air monitoring; and general indoor air quality assessments for offices, schools, daycares, and residential properties.
Water Quality Analysis: Drinking water testing for lead, bacteria (coliform), nitrates, pH, hardness, and heavy metals; comprehensive well water panels; municipal water testing for homes with aging lead service lines; and water quality testing packages for real estate transactions and pre-purchase due diligence.
Soil & Materials Testing: Asbestos bulk material sampling with NVLAP-accredited laboratory PLM analysis; lead paint chip sampling and XRF lead paint inspections; soil sampling for lead, asbestos, and other site contaminants (pre-construction and post-remediation verification); and chemical and material identification services.
Why independent testing matters: As a testing-only firm, we have no financial interest in finding problems. Our accredited laboratory results are accepted by real estate attorneys, mortgage lenders, FHA/VA underwriters, IDPH, and Illinois EPA. You get the truth about your environment — not a sales pitch for remediation services.
Fungal Spore "Mold" Risk Assessments and "Mold Sampling
Radon Testing in Schools
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
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Initial radon detection
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Follow-up radon detection
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Post-mitigation radon detection
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.
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)
Mold Testing - Apartments & Residential - Illinois
I need to check for mold growth in my apartment - who does certified mold testing in Illinois?
If you are seeing dark spots on walls or ceilings, noticing a persistent musty odor, or experiencing unexplained allergy symptoms, coughing, or headaches in your apartment, professional mold inspection in Illinois is the essential next step. US Environmental Testing LLC / Northern Illinois Radon is a state-licensed mold assessor serving Chicago and all of Northern Illinois. Do not rely on a $30 hardware store test kit — get certified, third-party documentation that holds up with landlords, courts, and remediation contractors.
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
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Mold air sampling
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Surface sampling
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Swab testing
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Tape lift sampling
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Moisture mapping
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Thermal imaging inspections
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Indoor air quality testing
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Post-remediation verification
Signs You May Have Mold
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Musty odors
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Visible staining
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Water damage
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Condensation issues
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Allergy symptoms indoors
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Recent flooding
Why Mold Testing Matters
Mold growth may impact:
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Indoor air quality
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Building materials
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Occupant comfort
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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.
Services Available in the Chicago Metropolitan Area
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Asbestos Building Inspections,
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Lead-Based Paint Risk Assessment & Inspections,
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Mold Assessments & Sampling,
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Radon Detection & Radon Mitigation
Areas we serve:
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 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]
When should you test for radon?
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Buying or selling property
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Every 2 years
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After renovations
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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.
Is radon common in Illinois?
Yes - Illinois is one of the highest radon-risk states in the U.S.
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
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Alabama, Mobile (Statewide)
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Florida, Tallahassee (Statewide)
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Georgia, Savanah (Statewide)
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Indiana, Indianapolis (Statewide)
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Kentucky, Lexington (Statewide)
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Mississippi, Jackson (Statewide)
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North Carolina, Raleigh (Statewide)
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South Carolina, Columbia (Statewide)
EPA Region 5
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Illinois, Chicago (Statewide)
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Indiana, Indianapolis (Statewide)
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Michigan, Detroit (Statewide)
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Minnesota, Minneapolis (Statewide)
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Ohio, Columbus (Statewide)
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Wisconsin, Madison (Statewide)
EPA Region 9
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American Samoa, Tafuna (Territory wide)
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Arizona, Phoenix (Statewide)
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California, Los Angeles (Statewide)
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Guam, Dededo (Statewide)
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Hawaii, Honolulu (All Islands)
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Nevada, Las Vegas (Statewide)
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Northern Mariana Islands, Saipan (All Islands)
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)
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Creates negative pressure beneath foundation
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Redirects radon gas safely above roofline
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Prevents entry into living space
What is Radon Mitigation?
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Radon levels above 4.0 pCi/L
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Failed real estate inspection
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Basement or crawlspace air concerns
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Long-term exposure risk concerns
The Radon Mitigation Process I
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nitial radon testing and diagnostics by a professional radon company
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System design based on structure type
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Professional installation (typically 1 day)
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Post-installation testing
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Performance verification and documentation
Why Our Systems Outperform Competitors
Engineered for Maximum Efficiency
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We design each system based on:
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Soil composition
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Foundation type
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Airflow dynamics
Premium Components
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High-efficiency radon fans
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Sealed piping systems
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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
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Basements and crawlspaces
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Single-family homes
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Slab-foundations
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Townhomes
Commercial & Large Structures
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Apartment buildings
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Capital Improvement Projects
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Daycare centers (commercial and home setting)
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Government Facilities
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Healthcare facilities
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Industrial buildings
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Multi-family buildings
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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:
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$1,200 – $2,500 (residential systems), price dependent upon complexity / size/ design
Factors affecting cost:
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Foundation type
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Home size
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Soil conditions
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System complexity
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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?
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Fast turnaround and installation planning
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Industry - leading compliance standards
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Trusted by: Businesses, Education & Universities, Government, HUD, IL - DCFS, Healthcare Systems, homeowners, Management Associations, Municipalities,
Volatile Organic Compounds (VOCs)
What are some sources of VOCs?
Household products, including:
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paints, paint strippers and other solvents
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wood preservatives
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aerosol sprays
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cleansers and disinfectants
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moth repellents and air fresheners
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stored fuels and automotive products
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hobby supplies
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dry-cleaned clothing
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pesticide
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Other products, including:
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building materials and furnishings
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office equipment such as copiers and printers, correction fluids and carbonless copy paper
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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)
What are known Health effects of VOCs?
Health effects may include:
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Eye, nose and throat irritation
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Headaches, loss of coordination and nausea
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Damage to liver, kidney and central nervous system
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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:
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conjunctival irritation
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nose and throat discomfort
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headache
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allergic skin reaction
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shortness of breath
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declines in serum cholinesterase levels
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nausea
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vomiting
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fatigue
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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
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What are PFCAs?
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What are PFSSs?
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What are PFSAs?
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What are n:2 FTSAs?
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What is E Coli?
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What is Legionella?
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What are nanoparticles?
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What is the action level for lead in water?
Schedule Environmental Testing Today!
Asbestos, Lead-Based Paint, Mold, Radon, and Water Testing
"Fast. Accurate. Experienced. Knowledgeable."

