Chesterfield in Cheshire County has shown an average radon level of 2.0 pCi/L, which falls within the EPA's recommended range but still merits ongoing monitoring. Located in zip code 03443 within EPA Zone 2, this southwestern New Hampshire community sits among rolling hills and mixed forests. Despite the moderate reading, New Hampshire's granite geology and the area's mix of older homes with basement foundations mean individual properties can still experience elevated radon levels.
2.00
pCi/L average
Below EPA Action Level
Based on 1 user-submitted radon test for homes in Chesterfield, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Chesterfield, NH Radon Mitigation
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User-submitted radon test readings from homes in the Chesterfield area.
Radon Level
City
Home Age
Foundation
2 pCi/L
Chesterfield, NH
21-50 Years
Full Basement
Have a radon test result for Chesterfield? Submit your reading to help other homeowners.
Radon FAQ for Chesterfield, NH
What is the average radon level in Chesterfield, NH?
Based on 1 user-submitted test, the average radon level in Chesterfield is 2.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.
What EPA Radon Zone is Chesterfield in?
Chesterfield and the 03443 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 Chesterfield?
Radon mitigation in 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 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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Cities in New Hampshire with the most user-submitted radon test data, ranked by number of submissions.
