Buffalo, SC Radon Mitigation and Testing

Q: What EPA Radon Zone is Buffalo in?

Buffalo is in Union County, EPA Zone 3.

Q: How much does radon mitigation cost in Buffalo?

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

Union County

EPA Zone 3

This Union County community lies within the Carolina Piedmont's rolling terrain, where granite bedrock and clay soils typically produce lower radon levels. Buffalo's location in the Spartanburg metro area features predominantly newer construction with varied foundation types. Since testing data remains limited for zip code 29321, local homeowners should test to understand their specific radon exposure risk.

Buffalo, SC Radon Mitigation

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

Buffalo, SC Radon Testing

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

Buffalo Radon Facts

Key details about the radon risk profile for Buffalo and the 29321 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Union County, SC

Zip Code

29321

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Buffalo and the 29321 zip code are located in Union 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 Buffalo, SC

What EPA Radon Zone is Buffalo in?

Buffalo and the 29321 zip code are in Union 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 Buffalo?

Radon mitigation in Buffalo 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 Buffalo?

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