Nesmith, SC Radon Mitigation and Testing

Q: What EPA Radon Zone is Nesmith in?

Nesmith is in Williamsburg County, EPA Zone 3.

Q: How much does radon mitigation cost in Nesmith?

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

Williamsburg County

EPA Zone 3

Located in rural Williamsburg County, Nesmith falls within South Carolina's EPA Zone 3 where radon concentrations typically remain low due to Coastal Plain geology. Testing data for the 29580 zip code area is limited, though the sandy soils and generally warmer climate of the region tend to reduce radon accumulation potential. While elevated readings are uncommon, homeowners should still consider testing, especially in homes with crawl spaces or unique construction characteristics.

Nesmith, SC Radon Mitigation

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

Nesmith, SC Radon Testing

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

Nesmith Radon Facts

Key details about the radon risk profile for Nesmith and the 29580 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Williamsburg County, SC

Zip Code

29580

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Nesmith and the 29580 zip code are located in Williamsburg 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 Nesmith, SC

What EPA Radon Zone is Nesmith in?

Nesmith and the 29580 zip code are in Williamsburg 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 Nesmith?

Radon mitigation in Nesmith 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 Nesmith?

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