Radon Testing

Radon is a gas you cannot see, smell, or taste. It comes up out of the ground and collects inside homes, and it is the second leading cause of lung cancer in the country behind smoking. You would never know it was there without a test.

This is not a scare tactic, it is geography. Illinois and Missouri sit in a region with some of the highest radon levels in the United States. A lot of homes here test above the action level, including newer ones, because radon depends on the ground under the house, not the age of the house. People are often surprised when a brand new home tests high, but the gas does not care how new your construction is.

The only way to know your level is to test, and the good news is that testing is simple and inexpensive. We place a certified measurement device in the lowest lived in level of your home and let it run for the proper length of time, following testing protocol so the result is accurate. You get a clear number and a straight explanation of what it means and whether you should do anything about it.

If your level does come back high, do not panic. Radon is very fixable with a mitigation system. And if you are buying or selling a home, a radon test is one of the cheapest pieces of due diligence you can do.

Call (618) 477-2761 to schedule a radon test.

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Don’t Let Radon Go Undetected

  • Magnifying glass over a yellow warning sign with the chemical symbol for Radon (Rn) and the number 86.

    Hidden But Dangerous

    Radon is odorless, colorless, and tasteless, making testing the only way to know if a space is at risk.

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  • Map of the United States showing indoor radon levels across counties with color coding: gray for no data, red for Zone 1 (>4 pCi/L), orange for Zone 2 (2-4 pCi/L), and yellow for Zone 3 (<2 pCi/L). The map includes inset maps of Alaska and Hawaii, with a scale bar and a legend attributing the data to the U.S. Environmental Protection Agency, created by Juan Nunez from the University of Illinois at Urbana-Champaign, dated November 17, 2016.

    It Can Accumulate Anywhere

    From basements and crawlspaces to offices and storage facilities, radon can concentrate in any poorly ventilated area.

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  • Exterior view of a house corner showing gray siding and stone veneer, with white gutters and downspouts, and an air conditioning unit nearby.

    Data-Driven Protection

    Certified testing provides precise readings and expert guidance for effective mitigation, ensuring safer air for everyone in the space.

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Radon Testing in Illinois & Missouri: Protect Your Space

Radon is a naturally occurring gas found in many buildings across Illinois and Missouri. Long-term exposure can cause serious health risks, including lung cancer, making testing essential for any space—residential or commercial.

  • We understand radon prevalence and building patterns specific to IL and MO, ensuring thorough testing in all types of spaces.

  • Using EPA-approved methods, we deliver precise readings to identify radon levels wherever it may accumulate.

  • If elevated radon is detected, we provide actionable recommendations and referrals to ensure safe, effective mitigation.

Chart showing radon testing levels with EPA and WHO recommended radon action levels in pCi/L, highlighting that 4.0 pCi/L is the EPA recommended level, which is equivalent to 200 chest X-rays per year.