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Lewiston, ME sits on glacial till and clay and has a cold humid climate with about 45" of precipitation a year. The local water table is variable, higher near the coast and wetlands, with severe, deep winter freeze–thaw cycling, and full basements are standard for frost protection. In practical terms, deep frost and freeze–thaw make frost heave and wall cracking leading concerns — which is exactly why radon mitigation is a common need here.
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Lewiston sits on glacial till and clay with a cold humid climate with about 45" of precipitation a year. Deep frost and freeze–thaw make frost heave and wall cracking leading concerns. That combination makes radon mitigation a recurring need for Lewiston homeowners.
Local projects typically run $800 – $2,950, tracking Lewiston-area labor and material prices. Difficult sites — for example where glacial till and clay is severe — can run higher. Always compare at least two local quotes.
Most systems run $800–$3,000 depending on the home's foundation and layout. It's a one-time install that protects the whole home.
The EPA estimates about 1 in 15 U.S. homes has elevated radon, and it's often highest in the basement. Test first — if you're at or above 4 pCi/L, the EPA recommends fixing it.
A fan and pipe draw radon from beneath the slab and vent it safely above the roof, lowering indoor levels — usually within a day of installation.
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