Radon Testing

Radon is an invisible, odorless gas that’s a leading cause of lung cancer. Illinois and Missouri have some of the highest radon levels in the country, which means many homes test unsafe without any warning..

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.

  • 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.

  • 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.

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.