Radon Mitigation in Hancock County, Maine
EPA Zone 2 · Roughly 24% of homes in Hancock County test above the EPA action level. Here's what local homeowners need to know — and how we serve the area.
Includes Mount Desert Island (Bar Harbor) and Ellsworth. Mixed bedrock geology with many seasonal homes that benefit from continuous monitors. We are licensed, insured, NRPP-certified, and serve Hancock County with same-week installation in most cases.
Why Hancock County Has High Radon
Local Geology
Granite-dominated on Mount Desert Island and inland, with sedimentary pockets along Frenchman Bay. MDI granite is well-known to produce elevated radon.
Housing Stock
Heavy concentration of seasonal-converted-to-year-round homes that may not have been tested before. Newer Ellsworth-area construction is dense.
Well Water
Almost universally well water outside Bar Harbor and Ellsworth villages.
Climate Effect
Maine's long heating season creates a strong stack effect that pulls radon out of the soil and into homes — winter readings in Hancock County typically run 30–50% higher than summer.
Mitigation Services for Hancock County Homes
Sub-Slab Depressurization
Our standard system for basements, slab-on-grade, and crawlspaces. Typical install $1,500–$3,000 depending on foundation type.
Learn more →Aeration Treatment
Required when well water tests above 4,000 pCi/L — common in Hancock County. Aeration system $4,500–$6,500 installed.
Learn more →Fast-Turnaround for Closings
Same-week installs for inspection-contingency timelines, complete with all documentation buyers and lenders need.
Learn more →Common Questions From Hancock County Homeowners
How much does radon mitigation cost in Hancock County?
Most homes in Hancock County fall in the $1,500–$3,000 range for a standard sub-slab depressurization system. Crawlspaces and slab-on-grade homes can run higher. Use our cost calculator for a fast estimate.
How long does installation take?
Most Hancock County installs are completed in a single day. Post-mitigation testing takes another 4–7 days to confirm levels are below 4 pCi/L.
Do I need to test for radon in well water?
If you're on a private well in Hancock County, yes — Maine wells routinely test above 4,000 pCi/L. Test through Maine HETL or your county Cooperative Extension. Learn about water radon →
Are you licensed to work in Hancock County?
Yes. We are NRPP-certified, fully insured, and licensed to install radon mitigation systems anywhere in Maine, including all towns in Hancock County.
Get a Free Quote in Hancock County
No pressure, no upsell. Just an honest assessment and a fair price.
Get a Quote Call (207) 483-5637