Why Naples, Maine Has Elevated Radon Risk
Naples has a heavy concentration of seasonal camps and cottages along Long Lake and at Sebago Lake State Park that have transitioned to year-round use. These properties often have minimally finished basements or dirt crawlspaces — both high-risk for radon accumulation. The rural roads east of the village center (toward Otisfield and Casco) feature older homes on large lots, almost all on private wells.
- EPA Zone 1 — highest radon potential in the country
- County average radon level: 2.8 pCi/L (EPA action level is 4.0 pCi/L)
- Approximately 1 in 4 homes in this zone test above the EPA action level
- Radon is the #2 cause of lung cancer in the U.S. — responsible for ~21,000 deaths per year
- Most homes can be effectively mitigated for $900–$1,500 with a professionally installed system
Housing and Foundation Types in Naples
Naples housing ranges from lakefront cottages and camps on Long Lake to traditional village homes near the Causeway, to rural capes and ranches on back roads. Converted seasonal homes — common throughout the Sebago Lakes region — often have poor foundation sealing and benefit significantly from professional mitigation. Homes on private wells should always be tested for water radon alongside air radon.
Radon in Naples Well Water
Many Naples homes are on private wells. Radon dissolved in well water is released into indoor air when water is used — in showers, dishwashers, washing machines, and faucets. This contributes directly to indoor air radon levels and is an exposure pathway that many homeowners overlook entirely.
We recommend that any Naples home on a private well be tested for water radon alongside air radon. If water levels are elevated, we install aeration treatment systems that remove radon before it enters your home's plumbing. Learn more: Radon in Well Water — How It Works and How to Fix It
Areas We Serve in Naples, Maine
We serve all neighborhoods and roads throughout Naples, including:
- The Causeway / Long Lake waterfront
- Bay of Naples area
- Sebago Lake State Park area
- Songo River corridor
- Route 302 corridor
- North Naples
- Muddy River Road area
- Brandy Pond area
Radon Services Across the Cumberland Region
We serve Naples as part of a concentrated service cluster throughout western Maine. If you have neighbors, family, or a second property in the area, we cover the surrounding towns with the same NRPP-certified technicians and same-week scheduling:
Radon Mitigation Services in Naples
- Sub-slab depressurization — gold-standard fix for basement and slab homes; effective for nearly all foundation types
- Crawlspace vapor barriers & sub-membrane depressurization — for homes with earthen or gravel crawlspace floors
- Well water radon treatment — aeration systems to remove radon before it enters your home's plumbing
- Foundation crack sealing — epoxy injection for block, poured concrete, and stone foundations
- Radon system maintenance & fan replacement — service for existing systems throughout the Cumberland County area
Radon Mitigation Cost in Naples, Maine
Most Naples homes can be mitigated for $900–$1,400 for air radon. Homes with crawlspaces, mixed foundation types, or older stone foundations may fall toward the higher end. Water radon treatment, if needed, is a separate system with its own quote. We provide itemized, no-surprise pricing before any work begins.
Learn more: Full radon mitigation cost guide for Maine homeowners
Our Process for Naples Homeowners
Contact & Consultation
Call us or request a quote online. We'll discuss your situation and schedule a convenient time for assessment.
Home Assessment
Our certified technician evaluates your home, testing radon levels and determining the best mitigation approach.
System Design
We design a custom mitigation system based on your home's construction, layout, and specific radon challenges.
Professional Installation
Our experienced team installs your system, typically completing the work in a single day.
Verification & Support
We verify system performance and provide ongoing support to ensure continued protection for your family.