How Much Does Radon Mitigation Cost in South Carolina?
South Carolina pricing is below the national average. Updated for 2026.
Radon Mitigation Pricing in South Carolina
In South Carolina, the average cost for radon mitigation is $1,044 per system, which is 13% lower than the national average of $1,200. Most South Carolina residents pay between $696 and $2,175.
South Carolina benefits from a lower cost of living than many states, resulting in more affordable pricing for radon mitigation. This makes it one of the more budget-friendly states for this service.
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.
South Carolina vs National Average
What Affects Radon Mitigation Cost in South Carolina?
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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💡 Tips to Save on Radon Mitigation in South Carolina
- 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 South Carolina Cost Trends (2022–2026)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2022 | $887 | — |
| 2023 | $924 | +4.2% |
| 2024 | $984 | +6.5% |
| 2025 | $1,012 | +2.8% |
| 2026 | $1,044 | +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 South Carolina
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 South Carolina
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