In Casco, the 2021 IRC is in force and 69% of the 2,973 homes were built before 2000. We replace and repair roofs here and inspect after storms, starting with a free, photographed inspection.
Casco runs to about 31.3 square miles and roughly 3,696 people. It sits about 24 miles northwest of downtown Portland. The community dates back to 1841. We cover ZIP codes 04015 and 04077.
No completed roof in Casco is logged in our job records yet.
We work across Casco rather than one corner of it — South Casco, Cook Mills, Crescent Lake and Pike Corner included. Age and construction change between them, which is why we look before we quote.
Casco reaches the shore of Sebago Lake and holds part of Sebago Lake State Park, one of Maine's five original state parks, with South Casco set between Sebago Lake and Thomas Pond. It was set off from Raymond in 1841, and pond outlets once ran a string of small mills.
Housing from this stretch in Casco sits on plywood or OSB decking and was largely first roofed with three-tab shingles. Most are on their second covering by now. The things worth checking are the penetrations rather than the field: pipe boots from this era are the single most common leak we trace, because the rubber collar splits long before the shingles wear out. Ridge venting was inconsistent through these years, and OSB that has been damp for a season goes soft in a way plywood does not — you find it with your feet, not from the ground.
By the Census Bureau's estimate there are 2,973 homes in Casco, with a median year built of 1988. 138 of them (5%) went up before 1940 — one of the five lowest pre-1940 shares of the 64 places on this site — and 919 (31%) in 2000 or later. The 2000s were the busiest decade, adding 589 of today's homes (20%). (Cumberland County as a whole: 23% before 1940.)
The rule of thumb in the Maine Bureau of Insurance's claims guide is a useful life of usually about 25 years for a roof. That puts 2,054 homes in Casco, the 69% built before 2000, past at least one full roof life; 743 of them (25%) predate 1970, old enough for two replacements already. Homes from the 2000s (589 in Casco) are reaching their first replacement, while the 330 built since 2010 are mostly still on the roof they were built with. At that age it pays to know whether the last roof was torn off or laid over the one before it, because a second layer hides the deck.
By building type: 2,258 detached houses (76%), 51 attached (2%). 46 homes (2%) sit in two- to nine-unit buildings and 18 (1%) in buildings of ten units or more, where a resident rarely gets to choose the roofer. The count also takes in 600 mobile homes, which are a different kind of roof job. 1,496 of 1,663 occupied homes (90%) are lived in by their owners. With houses like these, the jobs we expect most are first replacements on 2000s builder-grade shingles and storm checks on newer roofs that look fine from the driveway.
| Built | Homes | Share | |
|---|---|---|---|
| Before 1940 | 138 | 5% | |
| 1940s | 285 | 10% | |
| 1950s | 107 | 4% | |
| 1960s | 213 | 7% | |
| 1970s | 317 | 11% | |
| 1980s | 532 | 18% | |
| 1990s | 462 | 16% | |
| 2000s | 589 | 20% | |
| 2010s | 272 | 9% | |
| 2020 or later | 58 | 2% |
Census ACS 2020–2024, tables B25034, B25035, B25024 and B25003: 2,973 homes, 1,663 occupied. Survey estimates.
From 2016 through 2025, NOAA’s Storm Prediction Center recorded 2 reports of hail of 1 inch or more within 5 miles of Casco’s center, all on one storm day. None was 1.75 inches or larger. The largest, 1 inch, came on March 17, 2016, about 4.3 miles north of the center. A report needs someone to see the hail and send it in, so the count is a floor, not a full tally.
A bruised shingle can look fine for a season or two, which is why a storm inspection after a date like these is worth having.
Casco's posted pages do not say whether a roof replacement needs a building permit. The town fee schedule charges residential alteration permits by project cost, from $20 for work up to $500 to $100 plus $4 per $1,000 over $10,000, and doubles the fee for work started without a permit.
Casco enforces the 2021 IRC. Casco's Code Enforcement page posts the state notice that municipalities must enforce the newly adopted 2021 I-codes and matching standards of the Maine Uniform Building and Energy Code (MUBEC) as of April 7, 2025. The town's forms include a Town of Casco MUBEC energy compliance certificate. With 3,646 residents in the 2020 Census, Casco is not required to enforce the code under state law, and has chosen to.
The published number is 207-627-4515. The building official on record is John Wiesemann, Code Enforcement Officer. The department page is here.
Wind design changes with location across greater Portland and southern Maine: the published ultimate design wind speeds run 115–120 mph, and the building department can say which figure applies to a given address. Ground snow load is set for each address, not one figure for the whole area: the published figures here run 50–70 psf. See the roofing code guide for what it governs.
Casco borders Naples, Raymond, Sebago, Otisfield, Poland and Sebago Lake. Our pages for them:
Also in Cumberland County:
| Town | Re-roof permit | Code | Median built |
|---|---|---|---|
| Casco | Not published | 2021 IRC | 1988 |
| Naples | Not published | Enforcement optional | 1988 |
| Raymond | No | 2021 IRC | 1976 |
| Sebago | No | Enforcement optional | 1975 |
| Baldwin | Not published | Enforcement optional | 1979 |
| Bridgton | No | 2021 IRC | 1985 |
| Brunswick | No | 2021 IRC | 1982 |
All 25 Cumberland County towns side by side →
Casco's posted pages do not say whether a roof replacement needs a building permit. The town fee schedule charges residential alteration permits by project cost, from $20 for work up to $500 to $100 plus $4 per $1,000 over $10,000, and doubles the fee for work started without a permit.
Casco enforces the 2021 IRC. Casco's Code Enforcement page posts the state notice that municipalities must enforce the newly adopted 2021 I-codes and matching standards of the Maine Uniform Building and Energy Code (MUBEC) as of April 7, 2025. The town's forms include a Town of Casco MUBEC energy compliance certificate. With 3,646 residents in the 2020 Census, Casco is not required to enforce the code under state law, and has chosen to.
The Census Bureau's 2020–2024 estimates put the median year built at 1988: 5% of Casco's 2,973 homes predate 1940 and 31% were built in 2000 or later. At the usual 25-year roof life, 69% have needed at least one new roof already.
The last report near Casco of hail 1 inch or bigger came on March 17, 2016; NOAA's records hold 2 of them within 5 miles since 2016.
The building official on record is John Wiesemann, Code Enforcement Officer. The department's own number is on this page, beside its name.
Not yet: no completed roof in Casco is in our job records, so this page shows no job count.
Researched 2026-10-24; housing, Census ACS 2020–2024; hail, NOAA SPC. Sources: www.cascomaine.org · www.cascomaine.org · www.cascomaine.org · www.cascomaine.org · www.cascomaine.org · www.townofnaples.org · legislature.maine.gov · www2.census.gov · en.wikipedia.org · en.wikipedia.org · en.wikipedia.org · www.zip-codes.com · tigerweb.geo.census.gov · data.census.gov · www.spc.noaa.gov. Rules and staff change; check with the jurisdiction.
