Smithfield, ME Radon Levels
Check local Smithfield radon levels and find certified testing and mitigation professionals to keep your home safe
Smithfield, ME Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Somerset County, ME
Zip Code
04978
Set in Somerset County amid Maine's central lakes and forests region, Smithfield sits on glacial till over granite bedrock that can produce elevated radon levels throughout New England. The town's housing stock includes seasonal cottages and year-round homes, many with full basements carved into the rocky terrain typical of central Maine. Since radon testing data is currently unavailable for zip code 04978, residents should prioritize testing to understand indoor air quality levels in this EPA Zone 1 area.
Smithfield, 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 Smithfield, ME
What EPA Radon Zone is Smithfield in?
Smithfield and the 04978 zip code are in Somerset 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 Smithfield?
Radon mitigation in Smithfield 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 Smithfield?
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 |