White two-story colonial house with black shutters, a center doorway and a green lawn
Cumberland County, Maine

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.

Free estimateWindows, siding or both in Brunswick. Your city’s rules checked first.

By submitting this you agree we may call, text or email you about your project at the number given, including by automated means. Message and data rates may apply. Consent is not a condition of purchase. Reply STOP to opt out. Privacy · SMS terms. Calls may be recorded.

Free written estimate
Permit & code looked up
Windows and siding together
Cumberland, York & Sagadahoc
Windows & siding services

What we do in Brunswick

Brunswick at a glance

Permit to re-side
Not required
Window, same opening
Not published
New or bigger opening: required
Window must meet
U-0.30 or lower
2021 IECC (statewide)
Built before 1980
48%
Homes in Brunswick, Census 2020–2024
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

Before 194020%
1940–195912%
1960–197916%
1980–199925%
2000 or later27%

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.

Gothic-style house with carved bargeboard trim, a pointed window and diamond-pane sashes

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
12345
What is behind the siding: every layer explained
Worker on a lift painting new shingle and lap siding on a house gable
Kitchen window with potted plants on the sill and a snowy yard outside
Victorian clapboard house with a mansard roof, bracketed eaves and a columned front porch
Red clapboard cape-style house with a center chimney, shrubs and a sunny lawn

How Brunswick compares with its neighbors

PlacePermit to re-sidePermit for a windowWindow must meet
BrunswickNoNot publishedU-0.30
TopshamNoNoU-0.30
FreeportDependsDependsU-0.30
HarpswellYesYesU-0.30
West BathYesYesU-0.30
BathDependsDependsU-0.30
Cape ElizabethNoDependsU-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?
27% went up in 2000 or later and 25% in the 1980s and 1990s; the median Brunswick home dates from 1982, and 48% are older than 1980 (20% older than 1940). ACS 2020–2024.
Do I need a permit to re-side a house in Brunswick?
Not for siding. Brunswick's rules require no permit to re-side; say nothing on whether you need a permit to replace a window in the same opening; and require a permit to cut or enlarge an opening. 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. Next door in Freeport, a re-side depends on the job.
What U-factor does a replacement window need in Brunswick?
Maine sets it statewide, not Brunswick: a U-factor of 0.30 or lower under the 2021 energy code Maine adopted, with no limit on solar heat gain. 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.
Does Brunswick have historic districts that limit window or siding choices?
Brunswick has 4: Federal Street Historic District, Lincoln Street Historic District, Brunswick Commercial Historic District and Pennellville Historic District. Binding review by the Village Review Board, which reviews siding changes and window muntin profiles, prefers repairing original clapboards, and allows vinyl only as its guidelines illustrate.

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

Yellow clapboard house with black shutters behind a white picket fence
Free estimate

Work coming up in Brunswick?

We will tell you what the rules here are, including when they work in your favor.

Get a free estimate →