
Siding, Roofing, Windows & Decks in Harpswell, Maine
Harpswell is mostly water: a long peninsula and three bridged islands on the east side of Casco Bay, with about 216 miles of coastline. Nearly every house here deals with salt air, open-water wind and fog, and many sit within the town's shoreland building envelope. This page covers how that exposure affects siding, windows, roofing and decks on Harpswell Neck, Great Island, Orr's Island and Bailey Island, and what the Harpswell Code Enforcement Office requires before work begins.
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Harpswell homes and what they need
Census estimates count about 4,300 housing units in Harpswell with a median year built around 1979. Roughly one in five units predates 1940, about 29 percent predates 1960, around 22 percent was built between 1960 and 1979, and about 19 percent dates from 2000 or later. More than 91 percent of units are single-family detached houses, and about 83 percent of occupied homes are owner-occupied, both far above most Cumberland County towns. The most distinctive number is seasonal use: around 1,440 units, about a third of the housing stock, are held for seasonal or recreational use. That means cottages and camps that sit closed for months, next to year-round capes, farmhouses and larger newer homes on the water, often clad in cedar shingles or clapboard.
Weather and exposure in Harpswell
Few towns in Cumberland County are as exposed. Harpswell's land area is about 24 square miles against more than 100 square miles of water, so much of the town sits close to the bay and the wind has a long open run to reach them. Salt spray settles on siding, glass and roof metal, fog keeps surfaces damp for days, and nor'easters push rain sideways into east- and north-facing walls. Snowfall at the Portland Jetport, the closest long-record National Weather Service station, averaged about 69 inches a year over the 1991 to 2020 normals, and wet coastal snow loads roofs and decks quickly. Repeated freeze-thaw cycles still split paint, loosen shingles and heave shallow footings.
Harpswell neighborhoods and architecture
Harpswell was incorporated as a district in 1758 and as a town in 1775, and it became a shipbuilding center on Casco Bay in the 19th century. Its nine villages include Harpswell Center, Cundy's Harbor, Orr's Island and Bailey Island. The Harpswell Meetinghouse, built 1757 to 1759 with clapboard walls, is the oldest surviving meeting house in Maine. The granite cribstone Bailey Island Bridge was completed in 1928, and in South Harpswell the Auburn Colony preserves ten Shingle style summer houses rebuilt after an 1899 fire. Mitchell Field, a former Navy fuel depot, is now town parkland.
Permits and design review in Harpswell
The Harpswell Code Enforcement Office requires a building permit to alter, repair, renovate or replace any existing structure. Its permit guide specifically lists decks, even when built off-site, and window and exterior door replacement. The permit must be posted before work starts, review takes about 14 business days, and an accurate plot plan is expected. Structures must stay within the building envelope: in shoreland zones, 75 feet from the highest astronomical tide and 25 feet from boundary lines. Permits run one year, or up to five with a substantial start, and inspections include a final.
Harpswell at a Glance
What the housing stock and local code enforcement mean for a siding, window, roofing or deck job here.
5,031
Population (ACS estimate)
Median year built: 1979
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 29% of homes here
Shoreland Zoning
Applies near the water
Permits
Town of Harpswell Code Enforcement Office
Codes & Permits for Exterior Work in Harpswell
In Harpswell, exterior-work permits come from the Town of Harpswell Code Enforcement Office (263 Mountain Rd, Harpswell, ME 04079, (207) 833-5771 (main) / (207) 387-8833 (direct)). With 5,031 residents, over 4,000, Harpswell is required to enforce the Maine Uniform Building and Energy Code (MUBEC).
- Maine's adopted 2021 IRC requires all exterior wall coverings (siding) to be installed per the applicable code section and, where referenced, the manufacturer's installation instructions, with fastener penetration and spacing set by Table R703.3(1) — a full-envelope re-siding job (removing sheathing/house-wrap, not just cladding) is code work subject to a building permit in mandatorily-enforcing towns even where a simple like-for-like cladding swap might be treated as exempt maintenance by a given town; permit posture for the latter varies by municipality. up.codes
- A weather-resistive barrier is required under exterior wall coverings generally (R703.2), meaning a proper re-siding job that exposes the sheathing must also address the house-wrap/felt layer, not just the visible cladding. 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 Exterior Work in Harpswell
- With 5,031 residents, Harpswell 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 29% of Harpswell'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 exterior work whenever painted surfaces come off an older house here.
- Harpswell's shoreline, lake or river frontage falls under Maine's Mandatory Shoreland Zoning Act, so we check setback rules before work starts near the water.
- Anything that needs a permit for exterior work goes through the Town of Harpswell Code Enforcement Office.
A home's yard along Oceanside Road in Harpswell, near Bailey Island.
Street View © Google
Exterior services in Harpswell
Each page below covers one job in Harpswell: what the town's houses and weather mean for it, what the work involves, and what moves the price. For the full picture of a trade, see our siding, window replacement, roofing and deck building pages.
Siding in Harpswell
- Siding Replacement in HarpswellOn a Harpswell house, the weather side tells the story.
- Vinyl Siding Installation in HarpswellPremium vinyl suits a share of Harpswell houses well: the year-round capes, ranches and colonials built between the 1960s and 1990s along Route 123 and on the inland roads of Great Island, where owners want a wall that never needs paint.
- James Hardie Fiber Cement Siding in HarpswellFiber cement gives a Harpswell house the appearance of painted clapboard or shingles with far less of the upkeep that salt and fog force on wood.
- Cedar Siding & Shingles in HarpswellCedar shingles are the traditional skin of Harpswell.
Windows in Harpswell
- Window Replacement in HarpswellHarpswell's older houses and cottages often still have original wood sashes, and many camps were built with simple single-pane windows never meant for winter.
- Bay & Picture Windows in HarpswellViews are the reason many people live in Harpswell, and large fixed glass is how houses on Harpswell Neck, Great Island, Orr's Island and Bailey Island capture them.
Roofing in Harpswell
- Roof Replacement in HarpswellWind is usually what finishes a roof in Harpswell.
- Asphalt Shingle Roofing in HarpswellFor the year-round capes, ranches and colonials built across Harpswell between the 1960s and 1990s, architectural asphalt shingles remain the cost-effective choice.
- Metal Roofing in HarpswellMetal roofing makes a strong case on the coast.
Decks in Harpswell
- Deck Building in HarpswellA new deck is often the most-used room in a Harpswell house, facing the water or a wooded yard.
- Composite & PVC Decks in HarpswellHarpswell is hard on wood decks.
- Deck Replacement in HarpswellOlder decks in Harpswell often reach the end of their life faster than inland ones.
Towns near Harpswell
Nearby service areas
Cardinal Exteriors is a family-owned Portland company that works across Cumberland County and the Maine coast from Saco to Bath. See the full list on our service areas page.
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