Our home base: Winthrop, Monmouth and the Kennebec lakes.
Your local insulation crew in Winthrop and Monmouth. Spray foam and cellulose for attics, basements, lake houses and new builds, with Efficiency Maine rebates on qualifying work.
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Efficiency Maine offers rebates on qualifying insulation and air sealing work, with the biggest rebates for low- and moderate-income households. We'll tell you which tier you likely fall into at your free assessment. Rebate amounts and eligibility are set by Efficiency Maine and can change. We'll confirm what applies to your home.
Winthrop and Monmouth are home base for our crew. We insulate homes, farmhouses and lake houses around Maranacook, Cobbosseecontee and Annabessacook, plus the surrounding towns from Wayne to Litchfield.

We're based right here, so Winthrop, Monmouth, Readfield and Wayne get our fastest scheduling. Most homes around the lakes are older capes, farmhouses and converted camps that need the same thing: a sealed attic, a sealed basement and the right insulation.
Around Maranacook, Cobbosseecontee and Annabessacook, a lot of former camps are now year-round homes. Spray foam is a great fit for thin camp walls and floors over crawl spaces.
For farmhouses in Leeds, Litchfield, Wales and Greene, encapsulating a damp dirt-floor basement is often the biggest comfort upgrade you can make.


Stop heat from pouring out through the attic: fewer ice dams, warmer upstairs rooms and a furnace that isn't running all night.
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Closed-cell foam on basement walls and rim joists: warmer floors, no more drafts at the sill, and a basement that stops pulling cold into the house.
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Seal a damp dirt-floor basement or crawl space with a heavy vapor barrier and foam-sealed walls. Drier air, no musty smell, warmer floors.
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Spray foam in open walls for new construction, additions and remodels, and dense-pack cellulose for older homes with closed walls.
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Blown-in cellulose for attics and dense-pack cellulose for closed walls: a cost-effective way to add a lot of R-value to an older Maine home.
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Closed-cell foam for garages, workshops, barns and metal buildings. Stops the roof from dripping and makes the space heatable in January.
Learn more βHomes near the water see more damp air in their basements and crawl spaces, and older farmhouses often sit on fieldstone foundations over dirt. Both let moisture and cold into the house.
Encapsulating the basement floor and spraying closed-cell foam on the foundation walls and rim joists stops the moisture and the drafts at once. Then sealing and insulating the attic keeps the heat in.
ENERGY STAR estimates that air sealing and insulating attics, floors over crawl spaces and basement rim joists saves homeowners an average of 15% on heating and cooling.
From Winthrop to Mount Vernon β we serve all of Winthrop & Monmouth and the surrounding area:
Insulating an existing home usually doesn't need a permit, but camp conversions, additions and new construction can, and shoreland zoning applies near the lakes. Foam in living spaces may need an ignition or thermal barrier. We check what applies to your home.
Insulation and air sealing can qualify for Efficiency Maine rebates. We'll show you what you likely qualify for at the quote.
Insulation slows heat, but drafts walk right through it. We seal the leaks at the attic floor, rim joists and foundation first, then insulate.
Closed-cell foam for basements and rim joists, cellulose where it's the better value, open walls sprayed while they're open. Not one product for everything.
Get a fast, honest written quote for your Winthrop & Monmouth home, addition or shop today.