Swans Island, ME Radon Mitigation and Testing

Q: What EPA Radon Zone is Swans Island in?

Swans Island is in Hancock County, EPA Zone 1.

Q: How much does radon mitigation cost in Swans Island?

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

Hancock County

EPA Zone 1

Located in Hancock County off Maine's coast, Swans Island sits on granite bedrock typical of Maine's island geology. The island community features traditional Maine architecture including homes with partial basements and elevated foundations designed for coastal conditions. Since radon testing data is not currently available for zip code 04685, island residents should consider professional testing despite the marine environment's typically lower radon risk.

Swans Island, ME Radon Mitigation

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

Swans Island, ME Radon Testing

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

Swans Island Radon Facts

Key details about the radon risk profile for Swans Island and the 04685 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hancock County, ME

Zip Code

04685

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Swans Island and the 04685 zip code are located in Hancock County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Swans Island, ME

What EPA Radon Zone is Swans Island in?

Swans Island and the 04685 zip code are in Hancock 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 Swans Island?

Radon mitigation in Swans Island 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 Swans Island?

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