

Window and siding replacement in Brunswick
Replacement windows and new siding for homes in Brunswick. Here a re-side needs no permit, and a replacement window has to be U-0.30 or lower.
What we do in Brunswick


Siding replacement
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Vinyl siding
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Fiber cement
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Hail & storm damage
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Older homes
Learn moreBrunswick at a glance
- People
- 22,336
- Homes
- 9,523
- Size
- 46.8 square miles
- From downtown
- About 22 miles northeast
- ZIP codes
- 04011
- Founded or incorporated
- 1739
Brunswick sits at the north end of Casco Bay and at the head of tide on the Androscoggin River, whose falls powered up to 25 sawmills and Maine's first cotton mill in 1809. Bowdoin College and the Harriet Beecher Stowe House are here, and the town has four National Register historic districts.
The houses in Brunswick
In Brunswick, 48% of homes went up before 1980 and 20% before 1940; the median one dates from 1982. 52% are detached single-family houses, and owners live in 71% of the occupied ones. A sizable share of homes here date from before 1980, the era the federal lead rule covers (homes built before 1978). What the lead rule requires of a contractor.
57% of the homes in Brunswick have three or more bedrooms. The median owned home is worth about $376,300 by its owner's estimate, the figure to weigh any siding or window quote against.
Half the homes in Brunswick were built before 1982, which makes its housing about 6 years newer than across Cumberland County as a whole (median 1976). Set against Cumberland County as a whole, owners live in 71% of occupied homes here against 70% county-wide, the median owner-estimated value is $376,300 here and $451,200 across the county and detached houses are 52% of the homes, below the county's 63%.
- Rooms in the median home
- 5.6
- Heated with gas / electricity
- 21% / 13%
- Townhouses and other attached homes
- 9%
- Homes in buildings of 2 to 4 units
- 11%
- Homes in buildings of 5 or more units
- 14%
- Mobile homes
- 13%
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (tables B25034, B25035, B25024, B25003, B25077, B25041, B25018 and B25040), read through Census Reporter. These are survey estimates, not a count of every house.
What that vintage turns up
The largest group of homes in Brunswick, 27% of them, was built in 2000 or later, so that is the house described here.
Double-glazed low-e vinyl or fiberglass windows, usually installed with flashing tape over a house wrap. These rarely need replacing for age; when one fails it is usually a seal or a piece of hardware, and the maker's warranty is worth checking before anything else. Heavy frost or water on the inside of the glass in a cold snap is more often a humidity problem in a tight house than a window defect.
Vinyl, fiber cement or engineered wood over oriented strand board and a house wrap, the wall assembly the current code expects. The weak points are workmanship, not materials: tape that let go at the window corners, a missing kickout where a roof edge meets a sidewall, J-channel run tight with no room for the siding to move.
The one to watch on a house of this age
Houses built to recent Maine codes are tight, and Maine now holds new houses to a lower air-leakage limit than the national code. A tight house with too little ventilation fogs its windows all winter; before blaming the glass, check the humidity and the bath and kitchen fans.
And on the 25% built in the 1980s and 1990s
Windows of this era were often sealed to the wrap with caulk and little else. When the siding comes off, check the sheathing below each window's lower corners: that is where a failed caulk joint shows up first, as dark, soft wood.
Neighborhoods
We work across Cooks Corner, Brunswick Landing, Merepoint, Bunganuc Landing, Pennellville, Dyer Corner, Growstown and Harding.
Historic districts
Brunswick has 4 listed: Federal Street Historic District, Lincoln Street Historic District, Brunswick Commercial Historic District and Pennellville Historic District. A National Register listing on its own does not limit what you fit; a local district or landmark designation can, and in several towns here a change of siding material or window sash needs a certificate before the permit. Which towns' rules bind, and how.
Next door
Brunswick shares a boundary with Topsham, Freeport, Harpswell, West Bath, Bath, Durham, Androscoggin River and Casco Bay.

The rules in Brunswick
Siding replacement No permit
No, as long as nothing structural changes. The town's Planning and Development FAQ lists replacing roofing or siding with no structural changes among work that needs no building permit, and asks owners always to check with the Codes Office first.
Window replacement, same opening Not published Enlarging or cutting an opening Permit required
Window replacement is not on that list. The town's general rule requires a building permit when a building is altered, so a new or enlarged opening needs one, and permit applications ask for window and door schedules.
Maine sets this, not Brunswick: U-0.30 or lower
With 21,756 residents in the 2020 Census, Brunswick is over the 4,000 mark at which Maine requires a town to enforce the state's building and energy code.
That is the 2021 energy code’s window figure, with no solar heat gain limit.
ENERGY STAR’s own figure here is U-0.22 or lower with an SHGC of 0.17 or higher, stricter than any code edition in force. When the code applies to a replacement window, and when it does not.
Local quirks
In the Village Review Zone, the Village Review Board reviews changes of siding and changes to window muntin profiles, even where no building permit is needed. Its guidelines prefer repairing original wood clapboards, note that clapboards from before the 1920s came from old-growth wood, allow vinyl, aluminum and other non-wood siding as the guidelines illustrate, and bar asphalt and asbestos siding; windows replaced with identical styles and materials need no review.
Who to call
- Building dept
- 207-725-6660
- Official
- Mike Pindell, Code Enforcement Officer; Taylor Lund, Code Enforcement Officer and Zoning Administrator
- Permits
- Department page




How Brunswick compares with its neighbors
| Place | Permit to re-side | Permit for a window | Window must meet |
|---|---|---|---|
| Brunswick | No | Not published | U-0.30 |
| Topsham | No | No | U-0.30 |
| Freeport | Depends | Depends | U-0.30 |
| Harpswell | Yes | Yes | U-0.30 |
| West Bath | Yes | Yes | U-0.30 |
| Bath | Depends | Depends | U-0.30 |
| Cape Elizabeth | No | Depends | U-0.30 |
All 25 Cumberland County places side by side →
Work we have done in Brunswick
Not yet — Brunswick is on our list rather than in our records. We will say so until that changes.
Common questions about Brunswick
When were most of the homes in Brunswick built?
Do I need a permit to re-side a house in Brunswick?
What U-factor does a replacement window need in Brunswick?
Does Brunswick have historic districts that limit window or siding choices?
Where these facts came from
Sources: brunswickme.gov · brunswickme.gov · brunswickme.gov · brunswickme.gov · brunswickme.gov · brunswickme.gov · brunswickme.gov · brunswickme.gov · maine.gov · legislature.maine.gov

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