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RadonProsCertified Directory
Aerial neighborhood view in Wisconsin

Radon Pros in Wisconsin

34 contractors

EPA zone context: Most of Wisconsin is Zone 1, especially the southern and western regions. Milwaukee and Madison metros are high-risk areas.

AI

Advanced Inspections, LLC

5.0 (109 Google reviews)

Certified Professional

Licensed Provider: Marc Tarkowski, CPI

Testing Specialist•Oconomowoc, WI
Testing
Certified RMP

Advanced Inspections, LLC is a home inspection company with radon testing capabilities serving Oconomowoc, WI. Services include radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional certification. Rated 5.0/5 on Google based on 109 reviews. Offers real estate transaction testing, rush/priority scheduling.

View Profile2623545643
PR

Professional Radon Service

4.9 (15 Google reviews)

Certified Professional

Licensed Provider: James W. Schaller

Full Service•Viroqua, WI
MitigationTesting
Certified RMS/RMP

Professional Radon Service is a dedicated radon services company serving Viroqua, WI. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.9/5 on Google based on 15 reviews.

View Profile6086063014
MR

Milwaukee Radon Mitigation

5.0 (28 Google reviews)

Identity Verified
Full Service•West Allis, WI
MitigationTestingFan RepairNew ConstructionCommercial+1
Free Estimates

Milwaukee Radon Mitigation is a dedicated radon services company serving West Allis, WI. Over 10 years of experience. Services include radon testing, radon mitigation system installation. Works with slab foundations. Methods include sub-slab depressurization, heat recovery ventilation. Rated 5.0/5 on Google based on 28 reviews. Offers free estimates, real estate transaction testing.

View Profile(414) 455-7279
Data provided by Google Maps

State Info

Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.

Radon mitigation cost in WisconsinRadon testing cost in Wisconsin

Popular Cities for Radon Mitigation in Wisconsin

Radon mitigation in Neenah, Wisconsin2 local contractors listedRadon mitigation in Watertown, Wisconsin2 local contractors listedRadon mitigation in Adell, Wisconsin1 local contractors listedRadon mitigation in Beloit, Wisconsin1 local contractors listedRadon mitigation in Brookfield, Wisconsin1 local contractors listedRadon mitigation in Delafield, Wisconsin1 local contractors listedRadon mitigation in East Troy, Wisconsin1 local contractors listedRadon mitigation in Elm Grove, Wisconsin1 local contractors listedRadon mitigation in Fall River, Wisconsin1 local contractors listedRadon mitigation in Genoa City, Wisconsin1 local contractors listedRadon mitigation in Grafton, Wisconsin1 local contractors listedRadon mitigation in Holmen, Wisconsin1 local contractors listedRadon mitigation in Kenosha, Wisconsin1 local contractors listedRadon mitigation in Luck, Wisconsin1 local contractors listedRadon mitigation in Manitowoc, Wisconsin1 local contractors listedRadon mitigation in Milwaukee, Wisconsin1 local contractors listedRadon mitigation in Mineral Point, Wisconsin1 local contractors listedRadon mitigation in Monona, Wisconsin1 local contractors listedRadon mitigation in Mount Pleasant, Wisconsin1 local contractors listedRadon mitigation in New Richmond, Wisconsin1 local contractors listedRadon mitigation in Oak Creek, Wisconsin1 local contractors listedRadon mitigation in Oconomowoc, Wisconsin1 local contractors listedRadon mitigation in Randolph, Wisconsin1 local contractors listedRadon mitigation in Rib Lake, Wisconsin1 local contractors listed

FAQ: Radon Mitigation in Wisconsin

Is radon common in Wisconsin?

Very common. Wisconsin consistently ranks among the top states for radon. The Department of Health Services strongly recommends testing every home.

How much does radon mitigation cost in Wisconsin?

Most homeowners in Wisconsin see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.

Do I need radon testing in Wisconsin before hiring a contractor?

Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.

What radon level is dangerous in Wisconsin?

EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. Most of Wisconsin is Zone 1, especially the southern and western regions. Milwaukee and Madison metros are high-risk areas. ZIP-level lookup tools are useful for local context, but home testing is still required.

How do I choose a certified radon contractor in Wisconsin?

Look for current NRPP or NRSB credentials, ask for post-mitigation test expectations, and confirm local compliance details. Wisconsin requires radon measurement professionals to be registered with the Wisconsin Department of Health Services.

State Resources for Wisconsin

Radon mitigation cost in Wisconsin

Estimate likely project pricing by foundation type and system complexity.

Radon testing guide for Wisconsin homes

Learn when and how to test, plus how to interpret pCi/L results.

Radon levels and EPA zones in Wisconsin

See how state-level risk varies and what zone maps can and cannot tell you.

ZIP-level radon risk in Wisconsin

Check projected local risk by ZIP code before you request quotes.