SW
Full Service•Waukesha, WI
MitigationTestingNew ConstructionCommercial
Radon Pros in Wisconsin
84 contractorsEPA zone context: Most of Wisconsin is Zone 1, especially the southern and western regions. Milwaukee and Madison metros are high-risk areas.
ST
Steve Todd
VerifiedFull Service•Waukesha, WI
MitigationTestingNew ConstructionCommercial
NRPP Certified RMS/RMP
A dedicated radon contractor serving Waukesha, Wisconsin, offering radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Holds NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional certification through the National Radon Proficiency Program. Uses passive radon systems.
SS
Steven Schefus
VerifiedWaukesha, WI
TestingNew Construction
NRPP Certified RMP
WR
Full Service•Waukesha, WI
MitigationTesting
Free Estimates
BA
Barry A Sasse
VerifiedFull Service•Waupaca, WI
MitigationTestingNew ConstructionCommercialPost-Test
NRPP Certified RMP
WR
Full Service•Wauwatosa, WI
5.0 (294 Google reviews)
MitigationTestingFan RepairCommercialSump Pump+2
Free Estimates
MR
Full Service•West Allis, WI
5.0 (28 Google reviews)
MitigationTestingFan RepairNew ConstructionCommercial+1
Free Estimates
This West Allis, Wisconsin-based dedicated radon contractor specializes in radon mitigation, radon testing, radon fan repair and replacement, radon-resistant new construction (RRNC). Has 10 years of radon industry experience. Handles basement, slab-on-grade foundations, uses sub-slab depressurization, and family-owned business.
JJ
James Johnson
VerifiedFull Service•Williams Bay, WI
MitigationTestingNew ConstructionCommercial
NRPP Certified RMS
Serving Williams Bay, Wisconsin and surrounding areas with radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Carries NRPP Radon Mitigation Specialist certification from NRPP. Uses passive radon systems.
ML
Mike Langer
VerifiedFull Service•Wilson, WI
MitigationTestingNew ConstructionCommercial
NRPP Certified RMS/RMP
Based in Wilson, Wisconsin, this dedicated radon contractor provides radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Carries NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional certification from NRPP. Uses passive radon systems.
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.
Popular Cities in Wisconsin
Delafield (7)Elm Grove (4)New Richmond (4)Waukesha (4)Neenah (3)New Berlin (3)Appleton (2)Beloit (2)Brookfield (2)Chippewa Falls (2)Green Bay (2)Kenosha (2)Milwaukee (2)Mineral Point (2)Stanley (2)Watertown (2)Adell (1)Argyle (1)Columbus (1)Darien (1)East Troy (1)Fall River (1)Fond du Lac (1)Genoa City (1)
Related Radon Guides
How to Test for Radon
Testing methods, closed-house conditions, and how to read your results.
Foundation Types & Radon
How basements, slabs, and crawlspaces affect radon entry and system design.
Radon in Real Estate
What buyers and sellers should expect during testing, mitigation, and closing.
Radon System Maintenance
Maintenance schedules, fan replacement, and keeping your mitigation system effective.