Islesboro, ME Radon Mitigation and Testing

Q: What EPA Radon Zone is Islesboro in?

Islesboro is in Waldo County, EPA Zone 2.

Q: How much does radon mitigation cost in Islesboro?

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

Waldo County

EPA Zone 2

Located on Penobscot Bay in Waldo County, Islesboro sits on granite bedrock with glacial deposits that can contribute to radon accumulation in enclosed spaces. Testing data for this island community remains limited, though Maine's geology warrants radon testing for residents in zip code 04848. The island features seasonal cottages and year-round homes, many with basement or crawl space foundations.

Islesboro, ME Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Islesboro, ME Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Islesboro Radon Facts

Key details about the radon risk profile for Islesboro and the 04848 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Waldo County, ME

Zip Code

04848

Predicted Screening Level

2–4 pCi/L (Zone 2)

Islesboro and the 04848 zip code are located in Waldo County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Islesboro, ME

What EPA Radon Zone is Islesboro in?

Islesboro and the 04848 zip code are in Waldo 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 Islesboro?

Radon mitigation in Islesboro 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 Islesboro?

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Rumford	5.67 pCi/L	3
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