Mass Home Comfort
Find contractors
Insulation · Norfolk, MA

Insulation in Norfolk, Massachusetts

Compare contractors serving Norfolk, Norfolk County — call them directly, or send one request and let the ones who want the job come to you.

30 contractors serving Norfolk — including 1 based in town.

Contractors serving Norfolk

Claimed listings within 5 miles come first, then the rest by rating, then distance. Google ratings as of October 2026. How we list and rank contractors

Mass Save in NorfolkEligible

Norfolk is served by Eversource, so homeowners qualify for the full Mass Save program. The first step is a no-cost Mass Save Home Energy Assessment, after which Mass Save typically covers 75-100% of approved insulation and air-sealing costs (100% for income-eligible households), with the 0% Mass Save HEAT Loan up to $25,000 for the homeowner share. Because Norfolk's stock is comparatively new, an assessment usually focuses on attic and rim-joist gaps rather than the knob-and-tube or vermiculite issues common in older towns; the oldest homes near the center are the exception.

Read next

Insulation in Norfolk — what to know

Permits in Norfolk

Insulation in Norfolk usually needs no standalone building permit, but the contractor should hold a Massachusetts HIC registration, and related structural work requires a licensed Construction Supervisor. Mass Save rebates require a participating or approved contractor. Spray foam, often used to seal rim joists and finish attic slopes, must meet state fire and ignition-barrier code, including a thermal barrier where foam is exposed to living space.

Where a permit is required, insulation work in Norfolk is filed with the Norfolk Building Department; see the Norfolk Building Department’s contact, portal and who pulls the permit on permits.llc.

Typical project cost

Eastern Massachusetts insulation pricing runs somewhat above the central part of the state. As of recent cycles, attic insulation typically runs $1,500-$4,000, dense-pack wall insulation $2,000-$6,000, and air sealing $300-$1,500; spray foam runs higher. Norfolk's newer homes mostly need attic top-ups and rim-joist sealing on the lower end of those ranges. With Mass Save covering 75-100% of approved work, out-of-pocket on a qualifying job can be near zero.

About Norfolk homes

Norfolk is a Norfolk County town of about 11,527 residents across roughly 3,412 housing units, a low-density suburb on the commuter-rail line southwest of Boston. The median home is around 44 years old, dominated by 1980s-onward subdivisions and newer construction, with a smaller set of older homes near Norfolk center.

With mostly newer stock, the common insulation work is topping up attic R-value, sealing rim joists, and fixing comfort problems over garages and in finished bonus spaces. Even homes from the 1990s here often fall short of current attic standards, so air sealing the attic plane and adding R-value is usually the best-value upgrade.

Common questions — Insulation in Norfolk

Does Mass Save pay for insulation in Norfolk?
Yes. Norfolk is served by an investor-owned utility, so after a no-cost Mass Save Home Energy Assessment the program covers 75 to 100 percent of approved insulation and air sealing (no cost for income-eligible households) and finances the rest through the 0 percent HEAT Loan.
My Norfolk home is from the 1990s. Does it really need more insulation?
Often yes. Homes of that era here commonly have under-insulated attics and unsealed rim joists. Topping up attic R-value and air sealing is high-payback, and a Mass Save assessment shows exactly where the gaps are.
My bonus room over the garage won't stay warm. Can insulation help?
Usually yes. Rooms over garages often lack floor and band-joist insulation. The assessment will identify the gaps, and the fix is typically covered work under Mass Save.
Do I need a permit to insulate my Norfolk home?
Usually not for insulation itself. Use a contractor with an HIC registration and Mass Save approved status, and note any spray foam must meet state fire-barrier code.

Insulation guides for Massachusetts homeowners

All Insulation guides →

Insulation contractors in nearby towns

MillisWalpoleWrenthamFranklinMedfieldFoxboroughMedwayPlainville