Exeter, ME Radon Levels

Q: What EPA Radon Zone is Exeter in?

Exeter is in Penobscot County, EPA Zone 1.

Q: How much does radon mitigation cost in Exeter?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Exeter radon levels and find certified testing and mitigation professionals to keep your home safe

Exeter, ME Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Penobscot County, ME

Zip Code 04435

Small Penobscot County town Exeter sits in central Maine's lake region, where glacial till deposits and granite bedrock can contribute to elevated radon levels in some properties. The community features a mix of older farmhouses, seasonal camps, and year-round residences, many with full basement foundations necessitated by Maine's freeze-thaw cycles. Given the limited radon testing data for this 04435 Bangor Metro area, homeowners should pursue professional radon assessment to understand their individual property's characteristics.

Exeter, 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 Exeter, ME

What EPA Radon Zone is Exeter in?

Exeter and the 04435 zip code are in Penobscot 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 Exeter?

Radon mitigation in Exeter 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 Exeter?

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