Gardiner, ME Radon Mitigation and Testing

Q: What EPA Radon Zone is Gardiner in?

Gardiner is in Kennebec County, EPA Zone 1.

Q: How much does radon mitigation cost in Gardiner?

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

Kennebec County

EPA Zone 1

Positioned in Kennebec County along Maine's central river corridor, Gardiner sits on glacial deposits and granite bedrock that can produce elevated radon levels. With testing data currently unavailable for zip code 04345, residents should prioritize radon testing given the state's geological conditions. The community's historic housing stock, featuring many homes with older stone and concrete block foundations, may be particularly susceptible to radon accumulation through foundation cracks and gaps.

Gardiner, ME Radon Mitigation

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

Gardiner, ME Radon Testing

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

Gardiner Radon Facts

Key details about the radon risk profile for Gardiner and the 04345 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Kennebec County, ME

Zip Code

04345

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Gardiner and the 04345 zip code are located in Kennebec 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 Gardiner, ME

What EPA Radon Zone is Gardiner in?

Gardiner and the 04345 zip code are in Kennebec 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 Gardiner?

Radon mitigation in Gardiner 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 Gardiner?

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