Cornwall, NY Radon Mitigation and Testing

Q: What EPA Radon Zone is Cornwall in?

Cornwall is in Orange County, EPA Zone 1.

Q: How much does radon mitigation cost in Cornwall?

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

Orange County

EPA Zone 1

Located in Orange County within the Kiryas Joel Metro area, Cornwall sits on the Hudson Valley's complex geological foundation of metamorphic rock and glacial deposits. Testing data for zip code 12518 remains limited, making individual radon testing essential for area homeowners. The region's geological diversity and prevalence of homes with full basements make professional radon evaluation particularly worthwhile.

Cornwall, NY Radon Mitigation

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

Cornwall, NY Radon Testing

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

Cornwall Radon Facts

Key details about the radon risk profile for Cornwall and the 12518 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Orange County, NY

Zip Code

12518

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Cornwall and the 12518 zip code are located in Orange 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 Cornwall, NY

What EPA Radon Zone is Cornwall in?

Cornwall and the 12518 zip code are in Orange 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 Cornwall?

Radon mitigation in Cornwall 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 Cornwall?

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 New York

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

City	Avg User Radon Level	Submissions
Brooklyn	10.80 pCi/L	5
Oneonta	6.50 pCi/L	4
Clifton Park	3.75 pCi/L	4
Elmira	15.00 pCi/L	3
Saugerties	10.67 pCi/L	3
Staten Island	4.00 pCi/L	3
New York	9.00 pCi/L	2
Yonkers	8.00 pCi/L	2
Horseheads	7.50 pCi/L	2
Poughkeepsie	16.00 pCi/L	1
Buffalo	4.00 pCi/L	1
Pelham	3.00 pCi/L	1