Duncan, SC Radon Levels
Check local Duncan radon levels and find certified testing and mitigation professionals to keep your home safe
Duncan, SC Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Spartanburg County, SC
Zip Code
29334
Part of the Spartanburg Metro area in Spartanburg County, Duncan sits within EPA Zone 2 reflecting moderate radon potential from Piedmont geology. Testing data for zip code 29334 is currently unavailable, though the area's granite-based soils and mix of housing types create varied radon conditions. Individual property assessment is recommended for accurate readings.
Duncan, SC Radon Mitigation
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Radon FAQ for Duncan, SC
What EPA Radon Zone is Duncan in?
Duncan and the 29334 zip code are in Spartanburg County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Duncan?
Radon mitigation in Duncan typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Duncan?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in South Carolina
Cities in South Carolina with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Fort Mill | 6.00 pCi/L | 1 |
| Greenville | 5.00 pCi/L | 1 |