Mass Home Comfort
Find contractors
Insulation · Swansea, MA

Insulation in Swansea, Massachusetts

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

30 contractors serving Swansea.

Contractors serving Swansea

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 SwanseaEligible

Swansea is in National Grid territory, so homeowners qualify for the full Mass Save weatherization program. The no-cost Mass Save Home Energy Assessment is the starting point: once measures are approved, Mass Save covers 75–100% of attic, wall, and air-sealing costs (100% for income-eligible households), and the 0% Mass Save HEAT Loan up to $25,000 finances the homeowner share. On Swansea's postwar and shore-area homes, an assessment commonly finds attics short of R-60, uninsulated walls, and minimally insulated crawlspaces under former cottages.

Read next

Insulation in Swansea — what to know

Permits in Swansea

Insulation in Swansea generally needs no building permit, but the contractor should hold a Massachusetts Home Improvement Contractor (HIC) registration, with a Construction Supervisor License (CSL) for structural work. Mass Save incentives require a participating, approved insulation contractor. Spray foam must meet state fire and ignition-barrier code. Former cottages near Mount Hope Bay can sit on slabs or crawlspaces with minimal insulation, so confirm the assembly and any flood-zone requirements with the Swansea Building Department before floor or rim-joist work.

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

Typical project cost

In the South Coast region, attic insulation typically runs $1,500–$4,000 and dense-pack wall insulation $2,000–$6,000 as of recent rebate cycles, with air sealing around $300–$1,500; spray foam runs higher. Because Swansea is an National Grid (Mass Save) town, the 75–100% incentive can bring out-of-pocket on approved attic and wall work near zero. Wall dense-pack, crawlspace work in former cottages, and any knob-and-tube remediation are the main cost-drivers above the base attic range.

About Swansea homes

Swansea is a Bristol County town of 17,158 residents across about 6,927 housing units, with a median construction age near 57 years. The South Coast town along Mount Hope Bay has a base of postwar capes, ranches, and colonials, plus older homes in its village areas and former seasonal cottages near the shore.

For homes of this vintage, insulation work focuses on under-insulated attics, thin or empty walls in mid-century homes suited to dense-pack, and air sealing at rim joists and top plates. Former waterfront cottages may have minimal floor and crawlspace insulation, while older village homes can have balloon framing and knob-and-tube. Pre-1981 attics warrant a vermiculite check first.

Common questions — Insulation in Swansea

Does Mass Save pay for insulation in Swansea?
Yes. Swansea 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 Swansea home near the bay was a cottage. Can it be insulated for year-round use?
Usually yes. Former cottages often have minimal floor, crawlspace, and wall insulation worth upgrading. A Mass Save assessment maps the assemblies, and any flood-zone requirements get checked with the Building Department.
Can my mid-century walls be dense-packed?
If the cavities are empty, dense-pack cellulose is usually a strong, often Mass Save-eligible upgrade. An assessment confirms whether the walls are uninsulated and whether any knob-and-tube needs handling first.
Do I need a permit to insulate in Swansea?
Usually not for insulation alone, though your contractor should be HIC-registered and any spray foam must meet fire code. For shore-area homes on slabs or crawlspaces, confirm flood-zone rules with the Swansea Building Department first.

Insulation guides for Massachusetts homeowners

All Insulation guides →

Insulation contractors in nearby towns

SomersetDightonRehobothFall RiverSeekonkBerkleyFreetownTaunton