Asheville, NC Radon Mitigation and Testing

Q: What EPA Radon Zone is Asheville in?

Asheville is in Buncombe County, EPA Zone 1.

Q: How much does radon mitigation cost in Asheville?

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

Buncombe County

EPA Zone 1

Nestled in the Blue Ridge Mountains of Buncombe County, Asheville's unique mountain geography and crystalline bedrock create highly variable radon conditions across its multiple zip codes (28801-28810). Testing data for the Asheville Metro area remains limited, making professional radon assessment critical for homeowners throughout the region. The city's diverse housing stock, from historic downtown buildings to mountain homes with varied foundation types, requires individual testing to accurately determine radon exposure levels.

Asheville, NC Radon Mitigation

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

Asheville, NC Radon Testing

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

Asheville Radon Facts

Key details about the radon risk profile for Asheville and the 28801 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Buncombe County, NC

Zip Code

28801

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Asheville and the 28801 zip code are located in Buncombe County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Asheville, NC

What EPA Radon Zone is Asheville in?

Asheville and the 28801 zip code are in Buncombe County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Asheville?

Radon mitigation in Asheville 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 Asheville?

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 North Carolina

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

City	Avg User Radon Level	Submissions
Murphy	12.83 pCi/L	6
Blowing Rock	10.17 pCi/L	6
Brevard	7.50 pCi/L	4
Cary	5.00 pCi/L	4
Highlands	4.50 pCi/L	4
Mooresville	4.00 pCi/L	4
Banner Elk	9.33 pCi/L	3
Charlotte	7.33 pCi/L	3
Denver	4.33 pCi/L	3
Hendersonville	9.00 pCi/L	2
Wake Forest	4.50 pCi/L	2
Apex	3.50 pCi/L	2
Huntersville	3.50 pCi/L	2
Raleigh	9.00 pCi/L	1
Fayetteville	5.00 pCi/L	1
Waxhaw	4.00 pCi/L	1
Chapel Hill	3.00 pCi/L	1
Clayton	No submissions	0
Fuquay Varina	No submissions	0
Holly Springs	No submissions	0