Aerial shot of a home being inspected.


What is it?

Radon is a naturally occurring gas 4.5 billion years in the making. Radon gas rises through soil and rock, entering the low levels of a structure. It is over 7 times heavier than air and is easily influenced by air movements and pressure. In a house with forced air heating and cooling, radon gas can easily be distributed throughout the entire dwelling.

Radon is dangerous, and is the 2nd-leading cause of lung cancer. Once you know you have it, though, mitigation is relatively simple, and we can point you in the right direction.

1 in 10 Wisconsin homes has high radon levels.

The geology of our state means our structures are more prone to the presence of radon. Even new construction isn’t immune. Therefore, a certified radon measurement test is encouraged for any home, no matter the age.

Testing for Radon

We perform a standard 48-hour test to gain an initial understanding of the amount of radon concentration inside the home. These results can inform us if further testing, mitigation, or remediation is warranted. For this test it’s required that you commit to closed-building conditions and minimal entry & exit for the 48-hour period. (Tip: winter is a great time to get a radon test!)

We follow the standards of practice and protocols set forth by the American Association of Radon Scientists and Technicians’ (AARST) Consortium and the National Radon Prevention Program (NRPP), and our testing equipment has also been certified by AARST and NRPP.

Radon tests can be performed as a stand-alone service, or as part of a home inspection package for an additional fee.

Learn more about Radon in Wisconsin (opens in a new tab): https://www.dhs.wisconsin.gov/radon/index.htm

Schedule your inspection now or learn more about our pricing >



Todd Hunter Osborne
Certified Professional Home Inspector
137 E. Gorham St. #4
Madison, WI 53703


(608) 640-0808

Hours (subject to change):

  • Sunday-Friday 2-8 p.m.
  • Saturdays by appointment
  • In a pinch? Call for availability

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COVID NOTICE: We are fully vaccinated and compliant with CDC, state, and county recommendations and mandates, including masks and social distancing.


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