Chichester, NH Radon Levels
Check local Chichester radon levels and find certified testing and mitigation professionals to keep your home safe
Chichester, NH Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Merrimack County, NH
Zip Code
03258
Located in Merrimack County, Chichester sits in New Hampshire's south-central region where granite bedrock and glacial till soils can create variable radon conditions. The community's mix of historic homes and newer construction, many with full basements typical of New England architecture, provides the below-grade spaces where radon gas can accumulate. Testing data for the 03258 zip code area remains limited, making individual home testing especially important for residents.
Chichester, NH Radon Mitigation
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Radon FAQ for Chichester, NH
What EPA Radon Zone is Chichester in?
Chichester and the 03258 zip code are in Merrimack 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 Chichester?
Radon mitigation in Chichester 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 Chichester?
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.