Insulation in Newfield, Maine

Insulation and air sealing in Newfield

Newfield runs to about 32 square miles and roughly 1,580 people. It sits about 31 miles west of downtown Portland. There are around 1,170 housing units here. The community dates back to 1794. We cover ZIP codes 04095 and 04056.

We have not logged a completed job in Newfield yet. We would rather say so than put a number on this page that is not real.

The housing stock in Newfield

The typical home in Newfield dates to around the late-1970s. Postwar building here often meant three or four inches of fiberglass and no attempt at air sealing. If nobody has touched it since, that is what is still up there.

We work across Newfield rather than one corner of it — Newfield Village, West Newfield, Willowbrook, Shady Nook, Mee Corners, Stevens Corner and Sprague City 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.

Newfield is a small town of hills and ponds on the Little Ossipee River, incorporated in 1794, whose village once ran gristmills, sawmills and a carding mill on the river. It was heavily damaged by the Great Fires of 1947, and Province Mountain, at 1,176 feet, is its highest point.

Newfield homes in the Census numbers

The Census Bureau estimates 1,170 homes in Newfield. 120 of them (10%) went up before 1940 — 54th of 64 places on this site for pre-1940 housing. The 1970s were the busiest decade, adding 233 of today's homes (20%); 56% predate 1980 and 22% were built in 2000 or later. For York County as a whole the pre-1940 share is 20%, so Newfield sits below it.

Of 707 occupied homes, 0% heat with utility gas and 1% with electricity; another 25% burn propane or other tank gas. Electric heat here is less common than across the county (10%), and ranks 63rd 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.

97% of occupied homes are owner-occupied and 92% of all homes are single-family detached houses. With houses like these, the conversations we expect most are about an attic top-up over postwar fiberglass.

1,170 homes, Census ACS 2020–2024 (B25034, B25040, B25003); 707 occupied.

Sealing comes first in Newfield

257 of Newfield's 1,170 homes (22%) 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 Newfield

Newfield does not publish the energy code edition it enforces, so this page does not name one. Newfield voters adopted the building code part of the state code in 2013, retroactive to September 28, 2011, but not the energy code part; with 1,648 residents the town is not required to enforce either. Maine has one energy code for the whole state, the 2021 IECC with Maine's changes. A town of 4,000 or fewer people does not have to enforce it, but the state says it still applies to every building, and meeting it is the owner's responsibility.

Do you need a permit to insulate here?

Newfield publishes no answer either way. Insulation and air sealing appear on neither the permit-required list nor the exempt list. Newfield's fee worksheet (April 1, 2025) says no permit is needed outside the shoreland area for general maintenance, repairs, siding, painting or same-opening windows; insulation is not named, and shoreland projects need a site visit first. We confirm it with the department before we start and pull whatever is needed. We would rather write that here than guess on your behalf.

Permits and inspections in Newfield

The published number is 207-608-2544. The department page is here.

Permitting is on us, not on you.

Rebates a Newfield homeowner can actually use

Heating fuel in Newfield, by the Census Bureau's count: fuel oil or kerosene in 57% of occupied homes, electricity in 1%, propane or tank gas in 25% (Census ACS 2020–2024). Efficiency Maine pays the same rebates in Newfield 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. The work has to be done by an Efficiency Maine Residential Registered Vendor, and the attic has to start at R-21 or below and finish at R-49 or more. Income-qualified households in York County can apply to York County Community Action Corp (207-324-5762) for free weatherization through MaineHousing instead. Every condition is in the rebate guide. The York County page compares the towns.

Nearby

Newfield borders Parsonsfield, Limerick, Waterboro, Shapleigh, Acton and Wakefield, New Hampshire. These are the ones we also cover, each with its own energy code and permit rule:

Elsewhere in York County we also cover:

How Newfield 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 Newfield

Code and permit facts checked October 24, 2026, rebates October 24, 2026; housing: Census ACS 2020–2024. Sources: newfieldme.org (2, 3, 4, 5, 6) · maine.gov · legislature.maine.gov · www2.census.gov (2, 3, 4) · 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 207-608-2544 or Efficiency Maine at 866-376-2463 first.