Insulation in Wells, Maine

Insulation and air sealing in Wells

Wells runs to about 58 square miles and roughly 11,713 people. It sits about 31 miles southwest of downtown Portland. That is roughly 9,644 housing units. The community dates back to 1653. We cover ZIP codes 04090 and 04054.

Our job history shows nothing in Wells so far. Plenty of sites will show you a number here anyway.

The housing stock in Wells

The typical home in Wells dates to around the late-1980s. Houses of this vintage usually got batts or blown fiber at whatever the standard of the day was, which is well short of what is recommended now. Most are one top-up away from being right.

We work across Wells rather than one corner of it — Wells Beach, Moody, Moody Beach, Drakes Island, Wells Branch, Moody Point, Laudholm Beach, Tatnic, Highpine and Upper Landing included. Construction and vintage change between them, sometimes by thirty years and a whole different framing method, which decides whether a wall can be dense-packed at all.

Wells, incorporated in 1653 as the third town in Maine, stretches along the ocean at Wells Beach, Drakes Island and Moody Beach, where inns and hotels went up after the railroad arrived in the 1800s. The Webhannet River salt marshes lie behind the beaches, and the town once also included Kennebunk and Ogunquit.

Wells homes in the Census numbers

The Census Bureau estimates 9,644 homes in Wells. 782 of them (8%) went up before 1940 — 56th of 64 places on this site for pre-1940 housing. The 2000s were the busiest decade, adding 2,132 of today's homes (22%); 36% predate 1980 and 39% were built in 2000 or later. For York County as a whole the pre-1940 share is 20%, so Wells sits below it.

Of 5,067 occupied homes, 1% heat with utility gas and 11% with electricity; another 22% burn propane or other tank gas. Electric heat here is more common than across the county (10%), and ranks 27th of 64 on this site. Efficiency Maine's insulation rebates do not depend on the fuel or the utility, but the fuel decides what the work saves, so the assessment asks how the house is heated.

90% of occupied homes are owner-occupied and 67% of all homes are single-family detached houses, with 1,379 mobile homes in the count. On a housing mix like this, the likely starting points are air sealing on newer houses that already have depth.

9,644 homes, Census ACS 2020–2024 (B25034, B25040, B25003); 5,067 occupied.

Sealing comes first in Wells

2,403 of Wells' 9,644 homes (25%) were built in the 1980s and 1990s. The gaps in houses of that age are the parts nobody sealed: batts stuffed into the rim joist, bare spots over cathedral and tray ceilings, soffit vents buried with no baffles, can lights punched through the ceiling plane. A top-up plus a day of sealing usually covers it.

What the energy code requires in Wells

Wells enforces the Maine Uniform Building and Energy Code (2021 IECC with Maine amendments). Wells's Code Enforcement page says, citing 10 M.R.S. 9724(1), that the town's building code is the state code with the 2021 energy code in effect, and that the town's own Chapter 91 building articles are out of date and do not apply.

For new work, the attic number under that edition is R-60, with walls at R-30, or R-20 + R-10 continuous, or R-13 + R-15 continuous, or R-20 continuous. Set that against the Department of Energy, which recommends R60 for an uninsulated attic in this climate zone and R49 for one that already has a few inches.

Table R402.1.3 of the 2021 IECC for climate zone 6, with the wall row as Maine rewrote it (08-003 C.M.R.

Do you need a permit to insulate here?

Wells requires a permit for this work. Wells says permits are required to enlarge, alter, repair, renovate, remodel or update an existing structure, and its permit guide names insulation and sheetrock work among the jobs that need one. The town asks owners to call the Code Office when unsure, to avoid a stop work order. We pull it as part of the job.

Permits and inspections in Wells

The published number is 207-646-5187. The department page is here.

Permitting is on us, not on you.

Rebates a Wells homeowner can actually use

In Wells, 55% of occupied homes heat with fuel oil or kerosene, 22% with propane or other tank gas and 11% with electricity (Census ACS 2020–2024). Efficiency Maine pays the same rebates in Wells as anywhere else in the state: $2,000 per attic, wall or basement zone with 500 square feet or more insulated at any income, $3,000 for a verified moderate-income household and $4,000 for a low-income one, plus $150 to $300 for sealing the attic's air leaks. Only a Residential Registered Vendor can do rebated work, the claim goes in within six months, and a lifetime limit of $8,600 per home applies. Income-qualified households in York County can apply to York County Community Action Corp (207-324-5762) for free weatherization through MaineHousing instead. See the rebate guide for the tiers and the checklist, and the York County page for the county.

Nearby

Wells borders Kennebunk, Sanford, North Berwick, South Berwick, York and Ogunquit. These are the ones we also cover, each with its own energy code and permit rule:

Elsewhere in York County we also cover:

How Wells compares with its neighbors

Maine sets the residential energy code statewide, so the attic figure is R-60 wherever it is published here; what changes is the permit desk, and 1 of the 7 publishes a permit rule for insulation.

All 29 York County jurisdictions side by side →

Common questions about insulation in Wells

Code and permit facts checked October 24, 2026, rebates October 24, 2026; housing: Census ACS 2020–2024. Sources: wellstown.org (2, 3, 4, 5, 6) · maine.gov (2) · en.wikipedia.org (2) · www2.census.gov (2) · prd-tnm.s3.amazonaws.com · efficiencymaine.com (2, 3, 4) · energystar.gov · data.census.gov. These change; confirm with the building department at 207-646-5187 or Efficiency Maine at 866-376-2463 first.