Wisconsin has 84 contractors in this directory across 55 cities. Radon is a naturally occurring radioactive gas that can enter homes through foundation openings. EPA guidance sets 4.0 pCi/L as the action level for mitigation, and many homeowners choose to improve 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.
Wisconsin requires radon measurement professionals to be registered with the Wisconsin Department of Health Services.
Wisconsin is considered a high-risk state for radon. The state's glacial geology is a major contributor to elevated indoor levels.
Very common. Wisconsin consistently ranks among the top states for radon. The Department of Health Services strongly recommends testing every home.
Not sure what service you need?
Answer 5 quick questions and get matched with the right contractor.
4.5 (2 Google reviews)
Serving Adell, Wisconsin and surrounding areas with radon mitigation, radon testing, crawlspace radon solutions, radon-resistant new construction (RRNC). With 20 years in the field. Handles basement, slab-on-grade, crawlspace foundations, and uses sub-slab depressurization and passive radon systems.
This Appleton, Wisconsin-based dedicated radon contractor specializes in 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.
Serving Appleton, 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.
Operating out of Argyle, Wisconsin, this dedicated radon contractor offers radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Certified as NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional by NRPP. Uses passive radon systems.
Based in Beloit, Wisconsin, this dedicated radon contractor provides radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Certified as NRPP Radon Mitigation Specialist by NRPP. Uses passive radon systems.
4.9 (64 Google reviews)
A dedicated radon contractor serving Chippewa Falls, 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.
This Chippewa Falls, Wisconsin-based dedicated radon contractor specializes in radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. NRPP certified: NRPP Radon Measurement Professional. Uses passive radon systems.
5.0 (6 Google reviews)
A dedicated radon contractor serving Darien, Wisconsin, offering radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. NRPP certified: NRPP Radon Mitigation Specialist. Uses passive radon systems.
This Delafield, Wisconsin-based dedicated radon contractor specializes in radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. NRPP certified: NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional. Uses passive radon systems.
Operating out of Delafield, Wisconsin, this dedicated radon contractor offers radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Carries NRPP Radon Measurement Professional certification from NRPP. Uses passive radon systems.
Dedicated radon contractor in Delafield, Wisconsin, providing radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. NRPP certified: NRPP Radon Mitigation Specialist. Uses passive radon systems.