Nestled in Belknap County along Lake Winnipesaukee, Gilford has recorded an average radon level of 9.0 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold. The town's granite bedrock and glacial till soils, combined with many homes featuring full basements, create conditions highly favorable for radon accumulation. All homeowners in the 03249 ZIP code should prioritize radon testing and mitigation if needed.
9.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in Gilford, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Gilford, NH Radon Mitigation
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User-submitted radon test readings from homes in the Gilford area.
Radon Level
City
Home Age
Foundation
9 pCi/L
Gilford, NH
21-50 Years
Full Basement
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Radon FAQ for Gilford, NH
What is the average radon level in Gilford, NH?
Based on 1 user-submitted test, the average radon level in Gilford 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 Gilford in?
Gilford and the 03249 zip code are in Belknap 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 Gilford?
Radon mitigation in Gilford 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 Gilford?
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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