Friendship, ME Radon Mitigation and Testing

Q: What EPA Radon Zone is Friendship in?

Friendship is in Knox County, EPA Zone 2.

Q: How much does radon mitigation cost in Friendship?

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

Knox County

EPA Zone 2

Nestled in coastal Knox County, this Maine community sits in EPA Zone 2 where granite bedrock can contribute to elevated radon levels. With limited testing data available for the 04547 area, local homeowners are encouraged to test their properties independently. Maine's geological conditions, particularly near granite formations, can produce surprising radon concentrations even in seaside locations.

Friendship, ME Radon Mitigation

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

Friendship, ME Radon Testing

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

Friendship Radon Facts

Key details about the radon risk profile for Friendship and the 04547 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Knox County, ME

Zip Code

04547

Predicted Screening Level

2–4 pCi/L (Zone 2)

Friendship and the 04547 zip code are located in Knox 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 Friendship, ME

What EPA Radon Zone is Friendship in?

Friendship and the 04547 zip code are in Knox 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 Friendship?

Radon mitigation in Friendship 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 Friendship?

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