Maibec cedar shingles on a North Deering, Portland farmhouse by Cardinal Exteriors

Cedar Siding & Shingles in Westbrook, Maine

Cedar Siding & Shingles for Westbrook homes from a family-owned Portland company. An owner measures on site and writes a fixed-price proposal.

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Cedar Siding & Shingles for Westbrook homes

Real wood still has a place on Westbrook houses. Some owners of older homes want real wood clapboard to keep the character of a house like those in the Cumberland Mills Historic District, and cedar shingles give a warm, natural wall to a newer house on a wooded lot near Prides Corner or out toward the Windham and Gorham lines. Cedar is naturally rot-resistant and stable, and it takes paint or stain well. Clear-grade clapboard costs more than knotty stock but holds its finish longer on a south wall.

Inland conditions change the upkeep. Without salt air, cedar weathers more slowly and evenly, but walls shaded by trees stay damp and can grow mildew, and snow piled against the lower courses wets the bottom of the siding for months. A rainscreen gap behind the cedar, clearance above grade and a quality finish applied to all sides of each board make the difference between siding that lasts decades and siding that cups and splits. Cardinal Exteriors installs cedar clapboard and shingles as part of new siding projects.

Cedar shingle siding corner millwork on a North Deering farmhouse

How a Siding Wall Assembly Works

  1. Sheathing — the structural wall surface everything else attaches to
  2. Weather-resistive barrier — a wrapped membrane that stops bulk water while letting vapor escape
  3. Rainscreen gap — a drainage and drying space between the barrier and the siding
  4. Siding — the visible cladding, fastened over the furring strips
  5. Window flashing — tucked under the barrier above and lapped over the siding below, so water never gets behind it
Cedar shingle siding covering the exterior of a North Deering farmhouse

Westbrook housing at a glance

The Census Bureau's 2020-2024 American Community Survey estimates about 9,580 housing units in Westbrook, with a median year built of 1975. The stock splits into two eras. About a quarter of homes were built before 1940 and roughly 37 percent before 1960, while close to a quarter were built in 2000 or later, reflecting the city's recent growth. Only about 44 percent of units are single-family detached houses; the rest are duplexes, apartment buildings, condominiums and other attached housing. Around 61 percent of occupied homes are owner-occupied. The older layer includes the mill housing inside the Cumberland Mills Historic District and wood-frame homes like the 1914 Vallee Family House on Monroe Avenue, a clapboard American Foursquare with a hip roof and full front porch.

Weather and exposure in Westbrook

Westbrook sits a few miles inland from Casco Bay at an elevation of about 105 feet, so it misses most of the direct salt spray that coastal towns deal with but gets the full weight of southern Maine winters. Portland, on the city's eastern border, averages about 69 inches of snow a year, with seasons ranging far above and below that, and nor'easters regularly bring a foot or more with strong wind. Away from the ocean's moderating influence, nights run colder, frost goes deeper and freeze-thaw cycles work hard on roofs, flashing and deck footings. The city's own code office sets foundations at four feet below grade for frost protection, a useful benchmark for any new footing.

Permits and design review in Westbrook

Westbrook's Code Enforcement Department at City Hall, 2 York Street, issues building permits. The department publishes a building permit application specifically for basic renovations, alterations, sheds and decks, and enforces the Maine Uniform Building and Energy Code: the 2021 International Residential Code and the 2021 International Existing Building Code. Inspections should be booked 48 to 72 hours ahead, and a permit lapses if work does not start within six months. The city also has a Flood Hazard Permit for work in mapped flood zones, and lots near the Presumpscot River may fall within Maine's mandatory shoreland zone, which covers land within 250 feet of a river.

Westbrook at a Glance

What the housing stock and local code enforcement mean for a siding, window, roofing or deck job here.

20,400

Population (ACS estimate)

Median year built: 1975

Homes built before 194025%

A mix of eras — original materials on some houses, postwar replacements on others.

State Building & Energy Code (MUBEC)

Enforced — population over 4,000

EPA Lead-Safe Rule (pre-1978 homes)

Applies to at least 37% of homes here

Historic District

Exterior work may need design review

Shoreland Zoning

Applies near the water

Permits

City of Westbrook Code Enforcement Department

Codes & Permits for Cedar Siding in Westbrook

In Westbrook, exterior-work permits come from the City of Westbrook Code Enforcement Department (2 York Street, Westbrook, ME 04092, 207-854-0638). With 20,400 residents, over 4,000, Westbrook is required to enforce the Maine Uniform Building and Energy Code (MUBEC). The S.D. Warren Paper Mill / Cumberland Mills Historic District covers the former mill complex.

  • Maine's adopted 2021 IRC (R703.5) covers wood siding: a water-resistive barrier is required per R703.2, fasteners must penetrate a minimum of 1.5 inches into studs or blocking (R703.3.4), and horizontal lap siding needs a minimum 1-inch overlap (0.5 inch if rabbeted) per R703.5.3. up.codes
  • Beyond the code minimums, a vented rainscreen gap behind wood/cedar siding is common installation practice in Maine's cold, wet coastal climate to let cladding dry and reduce moisture-driven rot — this is standard trade practice referenced in building-science guidance, not itself a numbered MUBEC/IRC mandate, so it should be described to clients as a recommended practice rather than a code requirement. up.codes
  • Maine's Shoreland Zoning Act creates a regulated shoreland zone extending 250 feet (horizontal distance) from the normal high-water line of any great pond, river, or coastal wetland, and 75 feet from certain streams; the Act's stated purposes include protecting buildings and land from flooding/erosion and controlling water pollution, and it governs deck and other structure setbacks and the expansion of nonconforming structures within that zone (specific setback/expansion rules are set at the municipal-ordinance level under the state's model guidelines). maine.gov
  • By Maine law (25 M.R.S. §2373), 'the code must be enforced in a municipality that has more than 4,000 residents' (per the most recent federal census); municipalities at or below that population are not required to adopt/enforce MUBEC but may opt in locally, per the state's own program page: 'All municipalities with a population greater than 4,000 are required, by statute, to enforce the MUBEC. Municipalities with a population under 4,000 may choose to enforce the MUBEC.' mainelegislature.org

How Cardinal Exteriors Handles Cedar Siding in Westbrook

  • With 20,400 residents, Westbrook is over Maine's 4,000-resident line, so the town enforces the statewide Uniform Building and Energy Code (MUBEC) on top of its own permit process.
  • At least 37% of Westbrook's homes predate 1960 — well ahead of 1978, when the EPA's lead-safe renovation rule kicks in — so we plan for lead-safe work practices on cedar siding and shingles whenever painted surfaces come off an older house here.
  • The S.D. Warren Paper Mill / Cumberland Mills Historic District covers the former mill complex. That review is worth confirming with the town before materials are ordered, not after.
  • Because Westbrook has coastal, lake or river frontage, Maine's Mandatory Shoreland Zoning Act may apply to work close to the water, which can affect setbacks on a rebuild.
  • Anything that needs a permit for cedar siding and shingles goes through the City of Westbrook Code Enforcement Department.
Westbrook, ME
A Second Empire-style Victorian home on Knight Street in Westbrook, near the Cumberland Mills mill village.
Street View © Google

What cedar siding and shingles involves

Cedar clapboards and shingles are the original New England exterior, and for shingle-style cottages, capes and historic homes nothing else looks quite right. Cedar is naturally rot-resistant and light, but it is wood: it needs airflow behind it and a finish that suits the exposure. Pre-finished shingles, such as the Maibec shingles on several projects shown on this site, arrive stained or primed on all sides, which cuts the upkeep and evens out the color.

  • Walls are stripped, repaired and wrapped; where it helps drying, a ventilated or drainage layer goes behind the cedar.
  • Shingles are coursed and laid out so exposure lines up at windows, doors and corners.
  • Stainless or hot-dipped galvanized fasteners are used so they do not stain or corrode.
  • Corners are woven or finished with boards, and trim is detailed to shed water.
  • Pre-finished product is touched up at cuts; natural cedar is left to weather or finished as you choose.

Signs it is time

  • The house is a cape, shingle-style cottage or historic home where cedar belongs
  • Existing shingles are cupped, split, missing or black with mildew
  • A historic district or your own taste calls for real wood
  • You want a natural finish that weathers to silver-gray

What affects the price of cedar siding and shingles

  • Clapboard versus shingle, and grade of cedar
  • Pre-finished versus natural or site-finished
  • Coursing detail, corner treatment and trim
  • Wall area, height and tear-off
  • Any rainscreen or drainage layer behind the siding

Every job is priced from a free on-site visit. Typical ranges for the trade are on our siding page, and the details of this service are on the cedar siding and shingles overview.

For a deeper walkthrough of materials, code details and photos, see our full Cedar Siding & Shingles: A Traditional Maine Look That Needs the Right Prep Underneath guide.

Get a free cedar siding and shingles estimate in Westbrook

Tell us about the house and what you want changed. One of the owners will call to set up a visit, measure, and write a fixed-price proposal. No pressure, no obligation.

Need it today?Call Mike (207) 408-5388

or Bob at (207) 252-0759