The leading cause of lung cancer in non-smokers.

Lung cancer is not immediately noticeable. You may be exposed to radon for years without ever suspecting its presence.



Radon is a colorless, odorless radioactive gas.

The IEMA recommends measuring your indoor radon concentrations every two years. Schedule an appointment today.



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Read some frequently asked questions. Still have questions? Submit them through our FAQ page.



Click the link below to schedule a screening

We are located in Warrenville and service parts of DuPage, Will, Kane, Kendall, and DeKalb counties.


Contact Us

DuPage Radon Testing, Inc.
2S. 031 Lexington Court
Warrenville, IL 60555
Phone: 630-225-7997
Fax: 630-839-4988

Home – About Us

DuPage Radon Testing, Inc. is a Warrenville based radon measurement company servicing the Chicago suburbs. Established in 1998, we provide short-term residential radon screenings using femto-TECH continuous radon monitors and Rad Elec E-PERM® chambers. Both devices allow us to generate a formal result report the same day the test is completed, making us ideally suited for use in real estate transactions where time is of the essence. A hard copy of the report is mailed to the client. Electronic copies are available to be faxed or e-mailed for faster distribution.

 There is NO safe level of Radon Gas. Any reading that is NOT below 4.0 pCi/L needs to be remidated.

If you are considering buying a house in Illinois, you should have the home tested to determine the level of radon gas in the home.  In addition to when you first buy a home, it is highly recommended  you have your home re-tested every two years to make sure the levels have not changed.  Radon levels change all the time – your home could pass a test at purchase and fail a year or two later.  Just like your home could have radon, and your neighbor’s home may not.  Help keep your family safe  - get your home tested today.

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