Radon mitigation in Iowa City, Coralville, Cedar Rapids and surrounding areas.

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Concentration in Iowa is six times the national average.

More information about Radon.

What is the risk in Iowa?

  • All of Iowa is located in Zone 1 (red) indicating Iowans have a very high potential for elevated levels of radon gas.

  • The average indoor radon concentration in Iowa is 8.5 pCi/L. More than six times the national average.

  • Iowa leads the nation in the percent of homes over the 4 pCi/L action level as well as the percent of homes over 20 pCi/L.

  • Based on data collected from radon home tests, the Iowa Department of Public Health (IDPH) estimates that as many as 5 in 7 homes across Iowa have elevated radon levels

  • An estimated 400 deaths per year in Iowa are caused by radon-induced lung cancer, about the same number of annual deaths seen in Iowa for traffic fatalities.


What is Radon?

Why is Radon a Problem?

What is Radon?

Radon is a colorless, odorless, tasteless, radioactive gas produced by the natural decay of uranium and radium in the soil.   Exposure to elevated radon levels increases the risk of developing lung cancer.   The EPA estimates that 21,000 lung cancer deaths each year in the United States are due to radon, making it the leading cause of lung cancer among non-smokers.

The United States Environmental Protection Agency (USEPA) recommends that indoor levels of radon remain at a level equal or below 4.0 picocuries per liter of air (pCi/L) to decrease the risk of developing radon-induced lung cancer.

How can you test your home for radon?

Do-It-Yourself radon test kits are low cost and easy to perform. Short-term test kits lasting 3-7 days or long term test kits lasting 1-12 months can be obtained below or by calling 1-800-788-5864. When testing, be sure to follow directions on placement and time period closely and contact the Iowa Radon Program, American Lung Association of the Upper Midwest, or company that produced the kit with any questions regarding the testing procedure or interpreting the results.

If you do not want to perform the testing yourself, a list of Iowa Department of Public Health (IDPH) licensed radon measurement professionals can be found on the IDPH Radon Program website by clicking here and selecting the second available link on the page.

How Does Radon Enter the Home?

How do you fix a radon problem?

If tests show that your homes radon levels are above 4.0pCi/L it is suggested that you get a radon mitigation system installed. The most common and effective type of mitigation system is a vent pipe and fan system that draws air from underneath the foundation of the house and disposes of it outside. This radon mitigation system removes radon from under the foundation and vents it above the roof line of the house so that it does not enter the home. A list of Iowa Department of Public Health (IDPH) licensed radon mitigation professionals can be found on the IDPH Radon Program website by clicking here and selecting the second available link on the page.

The cost of a radon mitigation system can range between $900 and $2,500 (average $1,200) dependent upon characteristics of the building and the choice of radon reduction method.

How can I get more information or talk to someone specifically about Radon?

The Iowa Radon Hotline can be reached by calling 1-800-383-5992.

You can contact the American Lung Association by calling 1-800-788-5864.

What does my Test Results Mean?

What is Radon Mitigation?

Is Your Mitigation System Working?



John and his Team of Professionals always go above and beyond to do an exceptional job and to exceed the industry standards to make every home have reduced radon levels!! Highly recommend them every time we need services for radon mitigation!! It's the only call I would make!!


Mike Graf

Graf Home Selling Team


Thank you so much for doing such a great job installing the mitigation systems for our clients over the years. You are always very professional & responsive to clients questions & we really appreciate your knowledge & experience!


Jill Armstrong

Skogman Realty


Thank you REP (Radon Elimination Professionals) and Radon “John” for always being quick to respond and getting estimates for both interior and exterior mitigation systems for my clients whether they’re buyers or sellers. Sure makes my job easier. Including your testing results as part of the estimate is wonderful. One stop shop!


Tim Lehman

Coldwell Banker


Radon John. Incredible Service. Will meet any deadline. Totally Professional.

Never a worry about how he leaves a job site after the work is completed.


Gary R. Doerrfeld

Coldwell Banker


John and the team at REP are hands down the best Radon professionals I've ever worked with.  They work diligently to make sure their product and service is top notch, at the same time their pricing is very fair.  If you want it done right the first time, REP is the only call to make.


Jerad Kilburg

Urban Acres Real Estate


Radon Elimination Professionals is a top notch company to work with!  They are qualified, experienced, and very efficient to work with.  I recommend them to all of my clients needing mitigation as I know they will be in good hands with "Radon John".


Katie Chalupa

Skogman Realty


Radon John does outstanding work, and is always ready to help out with any and all radon issues a home might have. Kelley and I have used him dozens of times for our Buyers and Sellers, and referred him to many other friends and fellow Realtors. His bids are always in line with the final price, and his work is second to none.



David Moore

Ruhl & Ruhl Realtors