Radon Questions Wisconsin Homeowners Ask

Here are straight answers to the radon questions we hear most. Don't see yours? Add it to the message box in the quote form and the contractor can answer it.

Frequently asked questions

What is radon?

Radon is a radioactive gas that forms naturally when uranium in soil and rock breaks down. It has no color, smell or taste, and it can collect inside homes.

Is radon dangerous?

Breathing high radon over many years raises the risk of lung cancer. The U.S. EPA names radon as the leading cause of lung cancer among people who don't smoke, and the risk is higher for people who smoke.

How do I know if my home has radon?

Only a test can tell you. Kits are inexpensive, and Wisconsin offers reduced-cost kits through its Radon Information Centers. See our radon testing guide for how to do it.

How much does radon mitigation cost?

The Wisconsin Department of Health Services says a contractor-installed system typically costs about $1,000 to $2,000, depending on how your home is built.

How long does radon mitigation take?

Most installs take about a day. You then retest to confirm the system lowered the level.

Does radon mitigation work?

Yes. A well-designed system usually brings radon well below 4 pCi/L. A follow-up test confirms it in your home.

Does the radon fan run all the time?

Yes. The fan is meant to run around the clock. It's usually quiet and uses about as much power as a light bulb or two.

Will a radon system lower my home's value?

Generally no. Many buyers see a working system with a good follow-up test as a plus, because the problem is already handled.

How do I choose a radon contractor?

Wisconsin doesn't license radon contractors, so look for certification from NRPP or NRSB, the two national programs the state points homeowners to. Ask what's included and how they confirm the system works.

Is this service free?

Yes, it's free for homeowners. Contractors may pay us for referrals. You never pay us anything.

Who will contact me after I send the form?

One independent radon mitigation contractor certified by NRPP or NRSB who serves your area. They'll contact you by phone, text or email about your request.

Are you a contractor or a government program?

Neither. We are an independent referral service. We don't test or install systems.