Radon Testing in Illinois | Certified Radon Detection Near You | US Environmental Testing

#1 Rated Radon Testing Company in Illinois –

Fast, Accurate, Certified Results

If you're searching for radon testing near me, radon inspection in Illinois, or EPA-certified radon detection, US Environmental Testing delivers fast, precise, and fully compliant radon testing services for residential, commercial, and government properties across Illinois.

We are industry leaders in radon measurement, indoor air quality testing, and environmental compliance, trusted by homeowners, real estate professionals, schools, healthcare facilities, and commercial property managers.

 

What Is Radon and Why Testing Is Critical

Radon is a colorless, odorless radioactive gas that enters buildings through foundation cracks, sump pits, and soil gas pathways. It is the #1 cause of lung cancer among non-smokers, according to the EPA.

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Key Facts:

• Found in homes, schools, and commercial buildings

• Levels vary by structure—not location alone

• Only way to detect is through professional testing

• Illinois is a high-risk radon zone (Zone 1)

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Our Radon Testing Services

We provide professional-grade radon detection using continuous radon monitors (CRM) and laboratory-verified methods.

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Residential Radon Testing

• Real estate transactions (48-hour testing)

• Homeowner safety testing

• Pre- and post-mitigation verification

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Commercial & Industrial Testing

• Office buildings

• Warehouses

• Healthcare facilities

• Multi-family housing

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Government & Institutional Testing

• Schools (K–12 compliance)

• Daycares (DCFS requirements)

• Municipal and federal buildings

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Why US Environmental Testing Outranks the Competition

Most companies focus only on “getting the job done.” We dominate because we focus on accuracy, compliance, and authority.

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✔ Licensed & Certified Experts

• IEMA-certified radon professionals

• Multi-state licensed environmental testing authority

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✔ Advanced Testing Equipment

• Continuous Radon Monitors (CRM)

• Real-time data logging and reporting

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✔ Rapid Turnaround

• Results typically within 24 hours

• Same-day scheduling available

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✔ 100% Compliance

• EPA, ANSI, HUD, and state protocols followed

• Audit-ready documentation

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How Radon Testing Works

1. Schedule your test (same-day availability)

2. We deploy calibrated monitoring equipment

3. 48-hour testing period (EPA standard)

4. Data analysis and certified reporting

5. Recommendations if elevated levels are found

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What Is Considered a Dangerous Radon Level?

• 0–2.0 pCi/L → Low risk

• 2.0–3.9 pCi/L → Moderate risk

• 4.0+ pCi/L → EPA action level (mitigation recommended)

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When Should You Test for Radon?

• Buying or selling a home

• Every 2 years (recommended)

• After renovations or foundation changes

• Before finishing a basement

• If you’ve never tested before

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Areas We Serve

We provide radon testing across:

• Chicago

• Naperville

• Wheaton

• Glen Ellyn

• Oak Park

• Elmhurst

• Arlington Heights

• Schaumburg

• Entire State of Illinois