Insulation in Hanson, Massachusetts

Hanson is in Eversource territory, so homeowners here qualify for the full Mass Save weatherization 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). The 0% Mass Save HEAT Loan, up to $25,000, can finance the homeowner share. An assessment will flag issues that have to be handled before insulating, including any knob-and-tube wiring or pre-1981 vermiculite in the attic.

Insulation and air sealing in Hanson generally need no building permit, since the work doesn't alter structure. Any contractor doing the job should carry a Massachusetts Home Improvement Contractor (HIC) registration, and Mass Save incentive work has to run through a participating, approved contractor. Spray foam must meet state fire and ignition-barrier code, which usually means a thermal barrier or an approved coating over exposed foam. If older wiring or vermiculite turns up, electrical and asbestos rules apply before the cavity gets filled, and those steps come with their own licensed trades.

Hanson sits in the South Shore market, where insulation pricing is moderate by Massachusetts standards. As of recent cycles, attic insulation commonly runs $1,500-$4,000, dense-pack wall insulation $2,000-$6,000, and standalone air sealing $300-$1,500; spray foam runs higher per square foot. Because Hanson is an Eversource town, the Mass Save 75-100% incentive can bring the out-of-pocket cost close to zero on approved attic and air-sealing work, which is the main reason an assessment pays off before you compare quotes.

Hanson is a small Plymouth County town of about 10,619 people across roughly 4,143 housing units, with a median home age near 54 years. That puts most of the stock in the postwar-through-1970s range — ranches, capes, and split-levels that were often built with thin or settled attic insulation and little to no air sealing.

Homes from that era usually have framed, insulated wall cavities, so the bigger wins in Hanson tend to be topping up attic R-value, dense-packing under-insulated walls, and sealing the attic floor and rim joist. Older farmhouses scattered through town can still have balloon-framed walls and the occasional knob-and-tube run that needs attention first.