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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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.
When the walls are open (a new build, an addition, a gut remodel or a garage being turned into living space), it's the one chance to insulate them right for the life of the house. Spray foam fills every cavity and seals around wiring, plumbing and framing. For older homes with finished walls, we can dense-pack cellulose through small holes, which fills the cavities tightly and cuts drafts without tearing the walls open.
Wall jobs are priced from the plans or an on-site measure. Every house is different, so we look at it in person and give you a free written quote with each area, the insulation type and the thickness spelled out, plus the Efficiency Maine rebate you're likely to qualify for. The number on the quote is the number you pay.
Get My Free QuoteInsulation 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.
Most bad spray foam jobs go wrong for the same few reasons. Here’s what to check before you hand anyone a deposit:
More insulation on top of leaks doesn't stop drafts. A good installer seals the attic floor, rim joists and foundation before insulating.
A quote should list the material and the thickness or depth for each area. A low price with no thickness listed usually means thin insulation.
Efficiency Maine rebates can cover a real share of insulation and air sealing. Ask whether the installer will help you with the paperwork.
Foam in basements, attics and living areas may need a protective covering, depending on how the space is used. A pro knows the requirements.
Insulation isn't a fix for a leaking roof or a flooding basement. A good installer checks for water and tells you if something needs repair first.
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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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 →Tell us about your project and we’ll send a clear, written quote fast. No pressure, no obligation.
Central Maine Spray Foam