Saint Helena Island, SC Radon Levels
Check local Saint Helena Island radon levels and find certified testing and mitigation professionals to keep your home safe
Saint Helena Island, SC Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Beaufort County, SC
Zip Code
29920
This coastal community in Beaufort County within the Hilton Head Island Metro area typically experiences lower radon levels due to South Carolina's sandy coastal soils. However, with limited testing data available for the 29920 zip code, homeowners should still consider radon testing as individual properties can vary significantly. The area's mix of historic homes and newer coastal construction presents diverse foundation types that may influence radon entry patterns.
Saint Helena Island, SC Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Saint Helena Island?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Beaufort County Pros
Radon FAQ for Saint Helena Island, SC
What EPA Radon Zone is Saint Helena Island in?
Saint Helena Island and the 29920 zip code are in Beaufort County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Saint Helena Island?
Radon mitigation in Saint Helena Island 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 Saint Helena Island?
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 |