Walterboro, SC Radon Mitigation and Testing

Q: What EPA Radon Zone is Walterboro in?

Walterboro is in Colleton County, EPA Zone 3.

Q: How much does radon mitigation cost in Walterboro?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Colleton County

EPA Zone 3

County seat of Colleton County, Walterboro sits in South Carolina's Lowcountry where sandy coastal plain soils typically produce minimal radon concentrations. Historic downtown architecture and surrounding residential areas feature a mix of antebellum and 20th-century construction styles. While testing data for zip code 29488 is currently unavailable, the region's geology generally results in radon levels well below EPA guidelines.

Walterboro, SC Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Walterboro, SC Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Walterboro Radon Facts

Key details about the radon risk profile for Walterboro and the 29488 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Colleton County, SC

Zip Code

29488

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Walterboro and the 29488 zip code are located in Colleton County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Walterboro, SC

What EPA Radon Zone is Walterboro in?

Walterboro and the 29488 zip code are in Colleton 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 Walterboro?

Radon mitigation in Walterboro 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 Walterboro?

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Fort Mill	6.00 pCi/L	1
Greenville	5.00 pCi/L	1