Insulation in Limerick, Maine

Insulation and air sealing in Limerick

Limerick runs to about 27 square miles and roughly 3,400 people. It sits about 26 miles west of downtown Portland. That is roughly 1,597 housing units. The community dates back to 1787. We cover ZIP code 04048.

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

The housing stock in Limerick

The typical home in Limerick dates to around the mid-1990s. 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 Limerick rather than one corner of it — Limerick Village, Limerick Upper Village, Limerick Mills, Lake Arrowhead, Sokokis Lake, Felch Corner, Emerys Corner and Perrys Corner 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.

Limerick, settled in 1775 and incorporated in 1787, is a town of hills and lakes that grew along the old Sokokis Trail, now Route 5. Sokokis Lake and part of the Lake Arrowhead community lie within it, and the Limerick Upper Village Historic District preserves part of its old village.

Limerick homes in the Census numbers

The Census Bureau estimates 1,597 homes in Limerick. 70 of them (4%) went up before 1940 — one of the five lowest pre-1940 shares among the 64 places on this site. The 1990s were the busiest decade, adding 505 of today's homes (32%); 22% predate 1980 and 30% were built in 2000 or later. For York County as a whole the pre-1940 share is 20%, so Limerick sits below it.

Of 1,269 occupied homes, 0% heat with utility gas and 3% with electricity; another 13% burn propane or other tank gas. Electric heat here is less common than across the county (10%), and ranks 60th of 64 on this site. Whoever comes out will ask what heats the house first: the rebate is the same on any fuel, but the saving is not.

90% of occupied homes are owner-occupied and 88% of all homes are single-family detached houses, with 97 mobile homes in the count. With houses like these, the conversations we expect most are about air sealing on newer houses that already have depth.

1,597 homes, Census ACS 2020–2024 (B25034, B25040, B25003); 1,269 occupied.

Sealing comes first in Limerick

777 of Limerick's 1,597 homes (49%) 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 Limerick

Limerick enforces the Maine Uniform Building and Energy Code (2021 IECC with Maine amendments). Limerick adopted the state building code in March 2012, retroactive to September 2011; with 3,188 residents it is not required to enforce it, and has chosen to.

Under that edition the required attic value for new work here is R-60, and walls R-30, or R-20 + R-10 continuous, or R-13 + R-15 continuous, or R-20 continuous. For comparison, the Department of Energy recommends R60 for an uninsulated attic in climate zone 6A, where Limerick sits, and R49 where there are already a few inches up there.

The 2021 IECC, Table R402.1.3, zone 6, as amended by Maine's energy rule, 08-003 C.M.R.

Do you need a permit to insulate here?

There is no published answer for Limerick. Neither the permit-required list nor the exemption list mentions insulation or air sealing at all. Limerick's zoning ordinance (amended June 11, 2024) lists siding, painting and window replacement as maintenance needing no permit, and puts it on the owner to confirm with the Code Enforcement Officer. That silence is not permission and it is not a prohibition. We settle it with a phone call before the crew is scheduled.

Permits and inspections in Limerick

The published number is 207-793-4470. The department page is here.

Permitting is on us, not on you.

Rebates a Limerick homeowner can actually use

65% of the occupied homes in Limerick burn fuel oil or kerosene for heat, 3% use electricity and 13% propane or other tank gas (Census ACS 2020–2024). The insulation money for a Limerick house comes from Efficiency Maine, not the electric company. For a zone of 500 square feet or more it pays $2,000 at any income, $3,000 at moderate income and $4,000 at low income, and $150 to $300 more for attic air sealing. 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. The York County page and the rebate guide carry the full rules.

Nearby

Limerick borders Newfield, Parsonsfield, Cornish, Limington and Waterboro. These are the ones we also cover, each with its own energy code and permit rule:

Elsewhere in York County we also cover:

How Limerick 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 none of the 7 publishes a permit rule for insulation.

All 29 York County jurisdictions side by side →

Common questions about insulation in Limerick

Code and permit facts checked October 24, 2026, rebates October 24, 2026; housing: Census ACS 2020–2024. Sources: limerickme.org (2) · 0201.nccdn.net (2, 3) · maine.gov (2) · legislature.maine.gov · www2.census.gov (2, 3) · en.wikipedia.org (2) · prd-tnm.s3.amazonaws.com · efficiencymaine.com (2, 3, 4) · energystar.gov · data.census.gov. These change; confirm with the building department at 207-793-4470 or Efficiency Maine at 866-376-2463 first.