Window and Siding Replacement in West Bath, ME

West Bath at a glance

Permit to re-side

Required

Window, same opening

Required

New or bigger opening: required

Window must meet

U-0.30 or lower

2021 IECC (statewide; town need not enforce)

Built before 1980

44%

Homes in West Bath, Census 2020–2024

People: 1,863
Homes: 1,039
Size: 11.9 square miles
From downtown: About 25 miles northeast
ZIP codes: 04530
Founded or incorporated: 1844

West Bath sits on part of a peninsula between Bath and the salt-water New Meadows River, which separates it from Brunswick and Harpswell. Early homes were built along the shore, often with the front door facing the water, and waterfront homes are still the most sought after. It has no downtown or village center and works as a commuter town for Bath Iron Works and Brunswick, and seasonal cottages have been turning into year-round homes.

The houses in West Bath

Before 194012%

1940–195911%

1960–197921%

1980–199937%

2000 or later18%

Of the homes in West Bath, 44% predate 1980 and 12% predate 1940; the median one dates from 1983. Detached single-family houses make up 90%; owners live in 82% 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.

Owners here put the median home's value at about $422,800, and 54% of homes have three bedrooms or more — each bedroom needs an emergency escape opening under the egress rule.

Half the homes in West Bath were built before 1983, which makes its housing about 6 years newer than across Sagadahoc County as a whole (median 1977). Set against Sagadahoc County as a whole, owners live in 82% of occupied homes here against 78% county-wide, the median owner-estimated value is $422,800 here and $333,300 across the county and detached houses are 90% of the homes, above the county's 75%.

Rooms in the median home: 5.9
Heated with gas / electricity: 1% / 14%
Townhouses and other attached homes: 0%
Homes in buildings of 2 to 4 units: 0%
Homes in buildings of 5 or more units: 5%
Mobile homes: 5%

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.

Homes are spread across the town rather than gathered in a village, older homes often sit along the New Meadows shore facing the water, and several coves hold historic summer cottage colonies.

What that vintage turns up

The largest group of homes in West Bath, 37% of them, was built in the 1980s and 1990s, so that is the house described here.

Double-glazed vinyl or clad wood windows with a nailing fin, many now thirty or forty years old. The common failure is the seal between the panes: once it lets go the glass fogs between the layers and the gas fill is gone. When the frames are still square and dry, new sealed glass in the old frame is the cheaper repair; when the frames are cracked or the sills are soft, it is time for the whole unit.

The capes, colonials and raised ranches of the subdivisions that spread across the commuter towns, sided in vinyl or cedar clapboard over plywood or particle-board sheathing, with felt paper or an early house wrap behind it. The siding itself usually holds up; what to look at is what water has done at the corners, around the windows and under any deck ledger fastened through the siding.

The one to watch on a house of this age

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.

And on the 21% built in the 1960s and 1970s

The bottom of the wall. Panel siding that runs down close to the ground soaks up water and snowmelt, and the rim joist and sill plate behind it rot unseen. On a converted camp, check whether there is any sheathing at all before anyone prices new siding as a simple swap.

Neighborhoods

We work across Foster's Point, Quaker Point, Birch Point, Mill Cove, Merritt Island and Winnegance.

Next door

West Bath shares a boundary with Bath, Phippsburg, Brunswick, Harpswell and New Meadows River.

Worker on a lift painting new shingle and lap siding on a house gable

The rules in West Bath

Siding replacement Permit required

Yes, by the ordinance's wording. West Bath's Land Use Ordinance (May 2026) makes it unlawful to construct, add to, alter, remove or demolish any structure without first getting the needed approval or permit, and defines an alteration as any change or modification in construction. Siding is not named, so ask the Code Enforcement Officer how it applies to a re-side.

Window replacement, same opening Permit required Enlarging or cutting an opening Permit required

The same alteration rule reaches window work; the building permit application asks for the exterior wall framing, sheathing and siding.

Maine sets this, not West Bath: U-0.30 or lower

West Bath counted 1,910 residents in the 2020 Census, under the 4,000 mark, so it need not enforce the state's code, and its pages do not say it does; the state still counts meeting the code as the owner's responsibility.

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.

What the permit costs

A building permit obtained after work has started costs three times the normal fee.

Who to call

Building dept: 207-443-4342
Official: Jonathan Beane, Code Enforcement Officer, Licensed Plumbing Inspector and E911 Addressing Officer
Permits: Department page

What is behind the siding: every layer explained

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

Kitchen window with potted plants on the sill and a snowy yard outside

Yellow clapboard house with black shutters behind a white picket fence

Red clapboard cape-style house with a center chimney, shrubs and a sunny lawn

How West Bath compares with its neighbors

Place	Permit to re-side	Permit for a window	Window must meet
West Bath	Yes	Yes	U-0.30
Bath	Depends	Depends	U-0.30
Phippsburg	Depends	Depends	U-0.30
Brunswick	No	Not published	U-0.30
Harpswell	Yes	Yes	U-0.30
Woolwich	Not published	Not published	U-0.30
Arrowsic	Not published	Not published	U-0.30

All 10 Sagadahoc County places side by side →

Work we have done in West Bath

Nothing completed in West Bath so far. Rather than pad this out, we have left it blank until there is a real job to describe.

Common questions about West Bath

How old are most houses in West Bath?

37% went up in the 1980s and 1990s and 21% in the 1960s and 1970s; the median West Bath home dates from 1983, and 44% are older than 1980 (12% older than 1940). ACS 2020–2024.

Is a permit needed to replace siding or windows in West Bath?

Yes: a re-side, a window in the same opening and a new or bigger opening all need one in West Bath. Next door in Bath, a re-side depends on the job.

What window efficiency rule applies in West Bath?

Maine sets it statewide, not West Bath: a U-factor of 0.30 or lower under the 2021 energy code Maine adopted, with no limit on solar heat gain. West Bath counted 1,910 residents in the 2020 Census, under the 4,000 mark, so it need not enforce the state's code, and its pages do not say it does; the state still counts meeting the code as the owner's responsibility.

What does the egress rule mean for windows in West Bath?

Yes. 54% of West Bath's homes have three or more bedrooms (median owner-estimated value $422,800), and each bedroom needs an emergency escape opening: at least 5.7 square feet of net clear opening (5 at a grade-floor sill), 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor (IRC R310).

Where these facts came from

Sources: westbath.org · westbath.org · westbath.org · westbath.org · westbath.org · westbath.org · legislature.maine.gov · www2.census.gov · maine.gov · maine.gov

Window and siding replacement in West Bath

What we do in West Bath

Replacement windows

Siding replacement

Vinyl siding

Fiber cement

Hail & storm damage

Older homes