Saint Stephen, SC Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Stephen in?

Saint Stephen is in Berkeley County, EPA Zone 3.

Q: How much does radon mitigation cost in Saint Stephen?

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

Berkeley County

EPA Zone 3

Saint Stephen, SC resides in Berkeley 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. Testing is recommended for all homes in the 29479 zip code area.

Saint Stephen, SC Radon Mitigation

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

Saint Stephen, SC Radon Testing

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

Saint Stephen Radon Facts

Key details about the radon risk profile for Saint Stephen and the 29479 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Berkeley County, SC

Zip Code

29479

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Saint Stephen and the 29479 zip code are located in Berkeley 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 Saint Stephen, SC

What EPA Radon Zone is Saint Stephen in?

Saint Stephen and the 29479 zip code are in Berkeley 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 Stephen?

Radon mitigation in Saint Stephen 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 Stephen?

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