Mass Home Comfort
Find contractors
Insulation · Quincy, MA

Insulation in Quincy, Massachusetts

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

30 contractors serving Quincy.

Contractors serving Quincy

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 QuincyEligible

Quincy is in National Grid territory, so homeowners qualify for the full Mass Save weatherization program. A no-cost Mass Save Home Energy Assessment is the first step: once approved, Mass Save typically covers 75-100% of insulation and air-sealing costs (100% for income-eligible households), plus the 0% HEAT Loan up to $25,000 for the homeowner share.

For Quincy's older homes the assessment may flag knob-and-tube wiring or vermiculite, while for the postwar stock it usually centers on attic R-value and air sealing against coastal drafts.

Read next

Insulation in Quincy — what to know

Permits in Quincy

Insulation in Quincy generally needs no building permit, but your contractor should hold a Massachusetts Home Improvement Contractor (HIC) registration, with a Construction Supervisor License (CSL) for structural work. Mass Save jobs run through participating, approved contractors. Spray foam must meet the state fire and ignition-barrier code with a proper thermal barrier. Quincy's Inspectional Services handles related permits; standard attic and wall insulation faces no unusual citywide requirements beyond contractor licensing.

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

Typical project cost

Insulation costs in Quincy sit toward the higher South Shore end given its proximity to Boston. Attic insulation typically runs $1,800-$4,200, dense-pack wall insulation $2,500-$6,500, and air sealing $300-$1,400; spray foam runs higher. Because Quincy is National Grid (Mass Save) territory, the 75-100% incentive on approved work can bring the out-of-pocket near zero. For coastal capes and ranches, attic and air-sealing work is usually the highest-return spend; knob-and-tube remediation adds cost in older homes.

About Quincy homes

Quincy sits on the South Shore in Norfolk County — 100,981 residents across roughly 47,424 housing units, with a median construction age around 67 years. The housing runs from older homes in Quincy Center and Wollaston to large postwar neighborhoods of capes, ranches, and split-levels in Squantum, Houghs Neck, and West Quincy.

Older pre-WWII homes can have uninsulated walls and knob-and-tube wiring, while the many mid-century houses more often need attic top-ups, rim-joist insulation, and air sealing. Coastal exposure adds wind-driven drafts. Some pre-1981 attics may contain vermiculite (Zonolite) holding asbestos. Dense-pack cellulose, attic insulation, and air sealing make up most local work.

Common questions — Insulation in Quincy

Does Mass Save pay for insulation in Quincy?
Yes. Quincy 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 Houghs Neck home is drafty from the wind off the water. Can insulation help?
Yes. Air sealing plus attic and wall insulation cut wind-driven infiltration, which is a common complaint in Quincy's coastal neighborhoods. A Mass Save assessment with a blower-door test pinpoints the leaks.
Can my older Quincy Center home be dense-packed if it has knob-and-tube?
Not until the wiring is handled. Code requires knob-and-tube to be de-energized or replaced before filling the wall cavity. The Mass Save assessment will flag it.
Should I test my Quincy attic for asbestos before insulating?
If the home predates 1981 and the attic has loose gray-brown granular fill, it may be vermiculite that can contain asbestos. Test before any work; positive results require licensed abatement.
Do I need a permit to insulate my Quincy home?
Insulation alone usually needs no building permit. Use an HIC-registered contractor, and a participating contractor for Mass Save work. Spray foam must meet fire-code thermal-barrier rules.

Insulation guides for Massachusetts homeowners

All Insulation guides →

Insulation contractors in nearby towns

BraintreeMiltonWeymouthBostonRandolphHinghamBrooklineWinthrop