Portland, Maine
Insulation and Air Sealing in Portland, Maine
Portland's housing stock spans 150 years of construction — Victorians, mid-century ranches, post-war Capes, new construction. There is no standard solution. That's why starting with a proper assessment is always the right call.
Portland's Housing Stock and What It Means for Energy Efficiency
Portland's residential building inventory spans over 150 years of construction practices. The oldest homes — built before 1920 — were constructed with no concept of thermal envelope performance. Walls often have no insulation whatsoever. Attic bypasses allow enormous quantities of heated air to escape before any insulation even enters the picture.
Mid-century construction is still dramatically below current recommendations. The DoE recommends R-49 to R-60 in the attic for Maine homes. A Portland Cape built in 1965 with 4 inches of fiberglass batts is operating at R-13. That gap is costing hundreds of dollars a year — and it's fixable.
In Portland's older attached housing, air sealing is especially critical. Party walls between units are often full of bypasses that allow air — and with it, sound, odors, and moisture — to move freely through the building. We address all of it.
Services Available in Portland, Maine
We assess your home first, then our own crew does the work. One company, start to finish.
Insulation & Air Sealing
Our BPI Certified Auditors use blower door testing and thermal imaging to map where Portland homes lose energy. Spray foam at the rim joist, blown-in insulation in the attic, dense-pack cellulose for walls — installed through small holes without touching original plaster. Air sealing completed before any insulation.
Heat Pumps
We install and configure heat pumps for Portland homes. An insulated home with a correctly sized heat pump is dramatically more efficient than either alone. We handle Efficiency Maine rebate applications.
New Construction Insulation
New construction in East Bayside or anywhere in greater Portland. We work with builders and contractors to spec and install insulation on new builds — on schedule, with full energy code documentation.
Polyurea Coatings
Waterproof foundation and basement coating for Portland homes. Particularly useful for older Victorian-era buildings with stone or brick foundations that are prone to moisture intrusion.
Portland Homeowner Questions
Portland's older homes are losing heat every day.
Call (800) 625-5958 or schedule a free estimate. We serve Portland and all of Cumberland County.
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