Harpswell, ME Radon Levels
Check local Harpswell radon levels and find certified testing and mitigation professionals to keep your home safe
Harpswell, ME Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Cumberland County, ME
Zip Code
04079
Nestled in coastal Cumberland County, Harpswell sits on Maine's rocky peninsulas and islands where granite bedrock and thin glacial soils create varied radon conditions. The community's mix of year-round homes and seasonal properties, many built on ledge foundations or crawl spaces, reflects the unique challenges of coastal construction. While testing data remains limited for zip code 04079, homeowners should consider radon testing given Maine's geological variability and the EPA's recommendation for all homes.
Harpswell, ME Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Harpswell, ME
What EPA Radon Zone is Harpswell in?
Harpswell and the 04079 zip code are in Cumberland County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Harpswell?
Radon mitigation in Harpswell 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 Harpswell?
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.
Most Active Radon Markets in Maine
Cities in Maine with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Rumford | 6.00 pCi/L | 4 |
| York | 8.50 pCi/L | 2 |
| Saco | 7.50 pCi/L | 2 |
| Hampden | 4.50 pCi/L | 2 |
| Scarborough | 14.00 pCi/L | 1 |
| Kittery | 12.00 pCi/L | 1 |
| South Portland | 10.00 pCi/L | 1 |
| Portland | 4.00 pCi/L | 1 |