
Deck Replacement in Long Island, Maine
Deck Replacement for Long Island homes from a family-owned Portland company. An owner measures on site and writes a fixed-price proposal.
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Deck Replacement for Long Island homes
On houses this old, the deck is almost always a later addition, and many older pressure-treated decks are now reaching the end of their life. The warning signs are consistent: ledgers bolted to the house without flashing, which rots the rim behind them; posts on blocks or shallow footings that move with frost; nails and hangers corroded by salt air; and railings too low or too open for current code. When the structure itself is failing, patching boards only hides the problem.
Cardinal replaces decks from the footings up and does not do repairs, patching or staining. The old deck comes off, the house wall behind the ledger is opened and repaired where needed, and the new deck is built with flashing, frost-depth footings and hardware rated for salt exposure. Long Island's permit application covers replacement work, and because an attached deck is part of the principal structure, a larger replacement has to fit within shoreland setbacks and lot-coverage limits. The old decking leaves the island in the debris container the permit requires.

How a Deck Structure Is Built
- Footing — poured below Maine’s frost line so winter heaving cannot move it
- Post — carries the beam load down to the footing
- Beam — spans between posts and carries the outer ends of the joists
- Ledger — bolted to the house framing, with flashing that diverts water away from the wall
- Joists — span from the ledger to the beam, sized and spaced to the decking and the load
- Decking — the walking surface, fastened on top with spacing for drainage

Long Island housing at a glance
Census estimates count about 423 housing units, and the median year built is 1938. About 66 percent of units predate 1940, and about 68 percent predate 1960. Almost nothing was built between 1960 and 1979, only around 3 percent, and about 15 percent went up in 2000 or later. Roughly 95 percent of units are single-family detached houses, and about 88 percent of year-round households own their home. Seasonal use dominates: about 307 units, nearly three-quarters of the stock, are held for seasonal or occasional use. The town's comprehensive plan counts about 50 homes converted from year-round to summer-only use over a recent 25-year stretch and describes many summer houses as unheated or poorly heated. Many trace back to the summer-cottage boom of the 1890s and 1900s.
Permits and design review in Long Island
The Code Enforcement Officer meets by appointment through the Town Clerk. The town's building permit application covers new structures, additions, alterations, replacements and repairs, and it must include a scaled site plan and proof that a construction debris container has been delivered to be barged off the island. Every job gets at least three inspections: foundation, framing and final. Height is capped at 35 feet, and several zones limit structures to 15 percent of the lot. In the shoreland zone, new structures sit at least 75 feet from the upland edge of a coastal wetland, and the permit form warns that shoreland work may also need a Maine DEP permit.
Weather and exposure in Long Island
Long Island lies about six miles out from Portland along Hussey Sound, a main passage into the inner bay. Wind reaches it from every direction, and the town's comprehensive plan notes that the first settlers built on the south side of the island to shelter from northerly winter winds. Portland International Jetport, the nearest long-term station, averages about 69 inches of snow a season under the 1991 to 2020 normals. A January 2022 winter storm badly damaged the wave break, floats and pilings at Mariner's Wharf, and the plan lists sea level rise, stronger storms and upkeep of the island's bluffs among the town's concerns.
Long Island at a Glance
What the housing stock and local code enforcement mean for a siding, window, roofing or deck job here.
249
Population (ACS estimate)
Median year built: 1938
Original wood clapboard or shingle siding, wood-sash windows and multi-layered roofs are common here.
State Building & Energy Code (MUBEC)
Local option — population under 4,000
EPA Lead-Safe Rule (pre-1978 homes)
Applies to at least 68% of homes here
Shoreland Zoning
Applies, plus island delivery logistics
Permits
Town of Long Island Code Enforcement Officer (CEO business handled by appointment; contact via Town Clerk)
Codes & Permits for Deck Replacement in Long Island
In Long Island, exterior-work permits come from the Town of Long Island Code Enforcement Officer (CEO business handled by appointment; contact via Town Clerk). Long Island sits at or under the 4,000-resident line where MUBEC enforcement is a local option rather than a state mandate.
- Because Maine's mandatory-enforcement threshold and permit rules are set at the municipal level (per 25 M.R.S. §2373 and each town's own ordinance), whether a 1:1 deck replacement needs a new permit varies by town; several nearby Maine towns' code offices treat any deck rebuild involving new footings or ledger work as requiring a permit even when replacing an existing deck's footprint — this should be confirmed per town rather than assumed exempt. mainelegislature.org
- A deck replacement/rebuild is a natural trigger to bring an older deck up to the current guard-height and footing/ledger-flashing requirements (R507/R312) even if the original deck predated those provisions, since a new permit application is typically reviewed against the code edition in effect at the time of the new work, not the deck's original construction date; confirm this 'bring up to current code' expectation with each town's code office, as no single Maine-specific source stating this policy uniformly was found in this research pass. 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 Deck Replacement in Long Island
- Maine's adopted deck code (R507.2.4) requires a corrosion-resistant ledger flashing at least 0.019 inch thick, or an approved nonmetallic equivalent — every ledger-attached deck we build in Long Island gets it.
- We set every Long Island deck's footings below frost depth and size them to the actual load, following Maine's adopted residential code rather than a rule of thumb.
- Because Long Island 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.
- Materials and debris containers travel by private barge, plus the Casco Bay Lines passenger ferry from Portland. That logistics window shapes when we can start and finish the job.
- Long Island, at 249 residents, sits under the population line where MUBEC enforcement is a state requirement — the town may still choose to enforce it locally, and the permit process applies regardless.
- We file for deck replacement permits at the Town of Long Island Code Enforcement Officer (CEO business handled by appointment; contact via Town Clerk) before work starts, not after.
The Casco Bay Lines ferry terminal on Commercial Street in Portland — the mainland gateway used to reach Long Island, which has no Google Street View car coverage of its own.
Street View © Google
What deck replacement involves
When an old deck is soft, wobbly or pulling away from the house, a full replacement is treated as a new build: the old deck comes off, the footings and framing are built new, and the new surface, railings and stairs go on. That is the only way to deal with hidden rot at the ledger and frost-heaved footings, and it is how Cardinal Exteriors approaches it. It lets you change the size, shape and material at the same time.
- The existing deck is removed and disposed of, and the house wall behind the ledger is inspected.
- Rotted rim or sheathing behind the old ledger is repaired and the wall is flashed.
- New footings go below frost; new posts, beams and joists are framed.
- New decking, railings, stairs and landings are installed in the material you choose.
- Permits are pulled where required and the site is cleaned up.
Signs it is time
- Soft or spongy boards and joists
- A ledger pulling away from the house or rust-streaked fasteners
- Posts that have heaved, leaned or rotted at the base
- Railings that wobble or are lower than today's code expects
What affects the price of deck replacement
- Removal and disposal of the old deck
- Repairs to the house wall behind the ledger
- New size, height and shape
- Decking and railing materials
- Footing type and site access
Every job is priced from a free on-site visit. Typical ranges for the trade are on our deck building page, and the details of this service are on the deck replacement overview.
For a deeper walkthrough of materials, code details and photos, see our full Deck Replacement: When to Rebuild vs. Re-Deck guide.
More in Long Island and nearby
Back to the Long Island exterior services overview, or see every town on our service areas page.
Other exterior work in Long Island
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- Cedar Siding & Shingles in Long Island
- Window Replacement in Long Island
- Bay & Picture Windows in Long Island
- Roof Replacement in Long Island
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- Metal Roofing in Long Island
- Deck Building in Long Island
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Get a free deck replacement estimate in Long Island
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
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