Swanzey, situated in southwestern New Hampshire's Cheshire County, has recorded an average radon level of 7.0 pCi/L that exceeds the EPA action threshold. The area's bedrock geology, dominated by granite and schist formations, contributes to elevated radon potential across the Monadnock region. Homes in zip code 03446, particularly those with basements common to New England construction, should prioritize radon testing and mitigation when levels exceed 4.0 pCi/L.
7.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in Swanzey, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Swanzey, NH Radon Mitigation
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User-submitted radon test readings from homes in the Swanzey area.
Radon Level
City
Home Age
Foundation
7 pCi/L
Swanzey, NH
0-20 Years
Full Basement
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Radon FAQ for Swanzey, NH
What is the average radon level in Swanzey, NH?
Based on 1 user-submitted test, the average radon level in Swanzey is 7.00 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 Swanzey in?
Swanzey and the 03446 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 Swanzey?
Radon mitigation in Swanzey 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 Swanzey?
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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Cities in New Hampshire with the most user-submitted radon test data, ranked by number of submissions.
