
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.
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 all of Cumberland County. See the full list on our Cumberland County service areas page.
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