Nestled in Cheshire County in southwestern New Hampshire (03466), West Chesterfield sits on granite and schist bedrock that creates high radon potential throughout the Monadnock region. Testing shows an average radon level of 9.0 pCi/L, more than double EPA action guidelines. The area's mix of older New England homes and seasonal properties makes radon testing crucial for all residents.
9.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in West Chesterfield, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
West Chesterfield, NH Radon Mitigation
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User-submitted radon test readings from homes in the West Chesterfield area.
Radon Level
City
Home Age
Foundation
9 pCi/L
West Chesterfield, NH
0-20 Years
Full Basement
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Radon FAQ for West Chesterfield, NH
What is the average radon level in West Chesterfield, NH?
Based on 1 user-submitted test, the average radon level in West Chesterfield is 9.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is West Chesterfield in?
West Chesterfield and the 03466 zip code are in Cheshire 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 West Chesterfield?
Radon mitigation in West Chesterfield 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 West Chesterfield?
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.
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