Insulation and air sealing for Bridgton homes: attics, crawl spaces, rim joists and walls, starting with a free assessment of the R-value you actually have. The typical home here dates to the mid-1980s, and 11% of its 4,620 homes went up before 1940.
Bridgton runs to about 57 square miles and roughly 5,642 people. It sits about 36 miles northwest of downtown Portland. That is roughly 4,620 housing units. The community dates back to 1794. We cover ZIP codes 04009 and 04057.
Our job history shows nothing in Bridgton so far. Plenty of sites will show you a number here anyway.
The typical home in Bridgton dates to around the mid-1980s. Houses of this vintage usually got batts or blown fiber at whatever the standard of the day was, which is well short of what is recommended now. Most are one top-up away from being right.
The Highland Lake shoreline is heavily built up with homes and seasonal cabins.
We work across Bridgton rather than one corner of it — North Bridgton, South Bridgton, West Bridgton and Sandy Creek included. Construction and vintage change between them, sometimes by thirty years and a whole different framing method, which decides whether a wall can be dense-packed at all.
Bridgton sits between Long Lake and Highland Lake, and West Bridgton runs out to Moose Pond and Pleasant Mountain, home of the Shawnee Peak ski area.
The Census Bureau estimates 4,620 homes in Bridgton. 494 of them (11%) went up before 1940 — 52nd of 64 places on this site for pre-1940 housing. The 2000s were the busiest decade, adding 1,113 of today's homes (24%); 41% predate 1980 and 32% were built in 2000 or later. For Cumberland County as a whole the pre-1940 share is 23%, so Bridgton sits below it.
Of 2,380 occupied homes, 4% heat with utility gas and 11% with electricity; another 27% burn propane or other tank gas. Electric heat here is less common than across the county (15%), and ranks 25th of 64 on this site. The heating fuel does not change the Efficiency Maine rebate, but it does change what each inch of insulation is worth, which is why the boiler, furnace or heat pump is the first thing an assessment looks at.
83% of occupied homes are owner-occupied and 74% of all homes are single-family detached houses, with 640 mobile homes in the count. With houses like these, the conversations we expect most are about air sealing on newer houses that already have depth.
| Built | Homes | Share | |
|---|---|---|---|
| Before 1940 | 494 | 11% | |
| 1940s | 235 | 5% | |
| 1950s | 122 | 3% | |
| 1960s | 152 | 3% | |
| 1970s | 885 | 19% | |
| 1980s | 889 | 19% | |
| 1990s | 385 | 8% | |
| 2000s | 1,113 | 24% | |
| 2010s | 215 | 5% | |
| 2020 or later | 130 | 3% |
4,620 homes, Census ACS 2020–2024 (B25034, B25040, B25003); 2,380 occupied.
1,274 of Bridgton's 4,620 homes (28%) were built in the 1980s and 1990s. The gaps in houses of that age are the parts nobody sealed: batts stuffed into the rim joist, bare spots over cathedral and tray ceilings, soffit vents buried with no baffles, can lights punched through the ceiling plane. A top-up plus a day of sealing usually covers it.
Bridgton enforces the Maine Uniform Building and Energy Code (2021 IECC with Maine amendments). Bridgton posts the state notice that enforcing towns use the 2021 codes, IECC included, from April 7, 2025, and its Land Use Code has the Code Enforcement Officer confirm a project meets the state code before a permit is issued.
That edition sets R-60 for the attic in new work, and R-30, or R-20 + R-10 continuous, or R-13 + R-15 continuous, or R-20 continuous for walls. The Department of Energy's recommendation for this climate zone is no lower: R60 for an attic with nothing in it, R49 where a few inches are already down.
Table R402.1.3 of the 2021 IECC for climate zone 6, with the wall row as Maine rewrote it (08-003 C.M.R.
Bridgton's Land Use Code lists work that needs no permit as long as it meets the code's standards, and the list names insulation, along with plumbing, painting and replacement doors and windows, inside a building's existing footprint. In the shoreland zone the code's rules for nonconforming buildings still apply.
The published number is 207-803-9963. The department page is here.
Permitting is on us, not on you.
In Bridgton, 52% of occupied homes heat with fuel oil or kerosene, 27% with propane or other tank gas and 11% with electricity, and 4% utility gas (Census ACS 2020–2024). Efficiency Maine pays the same rebates in Bridgton as anywhere else in the state: $2,000 per attic, wall or basement zone with 500 square feet or more insulated at any income, $3,000 for a verified moderate-income household and $4,000 for a low-income one, plus $150 to $300 for sealing the attic's air leaks. The work has to be done by an Efficiency Maine Residential Registered Vendor, and the attic has to start at R-21 or below and finish at R-49 or more. Income-qualified households in Cumberland County can apply to Community Concepts Inc (207-795-4065) for free weatherization through MaineHousing instead. Every condition is in the rebate guide. The Cumberland County page compares the towns.
Every layer of an insulated attic, explained
Bridgton borders Harrison, Naples, Sebago, Denmark, Sweden and Fryeburg. These are the ones we also cover, each with its own energy code and permit rule:
Elsewhere in Cumberland County we also cover:
Maine sets the residential energy code statewide, so the attic figure is R-60 wherever it is published here; what changes is the permit desk, and 2 of the 7 publish a permit rule for insulation.
| City | Energy code | Attic R required | Permit to insulate | Building dept. |
|---|---|---|---|---|
| Bridgton | Maine code, 2021 IECC | R-60 | Not for an attic top-up | 207-803-9963 |
| Harrison | Maine code, 2021 IECC | R-60 | Not published | 207-583-0923 |
| Naples | Not published | — | Not published | 207-693-6364 |
| Sebago | Not published | — | Not published | 207-787-2457 |
| Baldwin | Not published | — | Not for an attic top-up | 207-625-3581 |
| Brunswick | Maine code, 2021 IECC | R-60 | Not published | 207-725-6660 |
| Cape Elizabeth | Maine code, 2021 IECC | R-60 | Not published | 207-799-1619 |
All 25 Cumberland County jurisdictions side by side →
Bridgton enforces the Maine code, 2021 IECC, which sets R-60 for an attic in new work. That code also reaches work on existing houses, not only new ones.
Bridgton's Land Use Code lists work that needs no permit as long as it meets the code's standards, and the list names insulation, along with plumbing, painting and replacement doors and windows, inside a building's existing footprint. In the shoreland zone the code's rules for nonconforming buildings still apply.
The statewide Efficiency Maine rebates: $2,000 to $4,000 per insulated zone of 500 square feet or more, by income tier, and $150 to $300 for attic air sealing; the work has to be done by a Residential Registered Vendor and the attic has to start at R-21 or less. The federal 25C credit ended for work placed in service after December 31, 2025.
The typical home in Bridgton dates to around the mid-1980s; the Census Bureau's 2020-2024 median year built is 1985. Of its 4,620 homes, 11% went up before 1940 and 32% in 2000 or later. That is a median across the whole place, so your own house may be older or newer.
Code and permit facts checked October 24, 2026, rebates October 24, 2026; housing: Census ACS 2020–2024. Sources: web.archive.org (2, 3, 4) · bridgtonmaine.org (2, 3, 4, 5, 6, 7, 8) · maine.gov (2) · en.wikipedia.org (2, 3, 4) · zip-codes.com · tigerweb.geo.census.gov · efficiencymaine.com (2, 3, 4) · energystar.gov · data.census.gov. These change; confirm with the building department at 207-803-9963 or Efficiency Maine at 866-376-2463 first.
Free assessment, a measured R-value, and photos you keep either way.
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