Westminster, SC Radon Mitigation and Testing

Q: What EPA Radon Zone is Westminster in?

Westminster is in Oconee County, EPA Zone 2.

Q: How much does radon mitigation cost in Westminster?

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

Oconee County

EPA Zone 2

Found in Oconee County near the foothills of the Blue Ridge Mountains, Westminster experiences moderate radon potential from the region's crystalline bedrock formations. Testing data for zip code 29693 remains limited, making individual home assessment crucial for residents. The area's mix of older homes and newer construction, often featuring crawl spaces or slab foundations, requires tailored radon testing approaches.

Westminster, SC Radon Mitigation

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

Westminster, SC Radon Testing

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

Westminster Radon Facts

Key details about the radon risk profile for Westminster and the 29693 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Oconee County, SC

Zip Code

29693

Predicted Screening Level

2–4 pCi/L (Zone 2)

Westminster and the 29693 zip code are located in Oconee County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Westminster, SC

What EPA Radon Zone is Westminster in?

Westminster and the 29693 zip code are in Oconee County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Westminster?

Radon mitigation in Westminster 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 Westminster?

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