How Much Does Radon Mitigation Cost in Wisconsin?
Wisconsin pricing is near the national average. Updated for 2026.
Radon Mitigation Pricing in Wisconsin
In Wisconsin, the average cost for radon mitigation is $1,128 per system, which is 6% lower than the national average of $1,200. Most Wisconsin residents pay between $752 and $2,350.
Wisconsin has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
Radon mitigation systems reduce indoor radon gas levels through sub-slab depressurization, sealing cracks, or installing ventilation systems. Radon is the second leading cause of lung cancer.
Wisconsin vs National Average
What Affects Radon Mitigation Cost in Wisconsin?
Foundation
Basement: $800-$1,500. Slab-on-grade: $1,000-$1,800. Crawl space: $1,200-$2,500. Multiple foundation types: $1,500-$2,500
System
Sub-slab depressurization: $800-$1,500. Sub-membrane: $1,200-$2,000. Heat recovery ventilator: $1,500-$2,500
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Top-Rated Radon Mitigation Pros in Wisconsin
5 providersPatriot Roofing & Siding
⭐ PREMIUMProudly serving WI since 1999. Licensed, insured, and committed to excellence.
Summit Home Services
✅ VERIFIEDHeritage Contractors
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💡 Tips to Save on Radon Mitigation in Wisconsin
- 1.Start with a radon test kit ($15-$40) before hiring a pro
- 2.Sub-slab depressurization is the most cost-effective method
- 3.Some states offer tax credits or subsidies for radon mitigation
- 4.DIY-friendly test kits are available at hardware stores
📈 Radon Mitigation in Wisconsin Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $958 | — |
| 2021 | $998 | +4.2% |
| 2022 | $1,063 | +6.5% |
| 2023 | $1,093 | +2.8% |
| 2024 | $1,128 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Radon Mitigation in Wisconsin
Recent Reports
Frequently Asked Questions
What radon level requires mitigation?
The EPA recommends mitigation if radon levels are at or above 4 pCi/L (picocuries per liter). Many experts suggest considering mitigation at 2 pCi/L.
Radon Mitigation Cost in Other States
Related Cost Guides for Wisconsin
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