518 Simonds Rd, Ashby, MA 01431
Insulation in Ashby, Massachusetts
Compare contractors serving Ashby, Middlesex County — call them directly, or send one request and let the ones who want the job come to you.
30 contractors serving Ashby — including 1 based in town.
Contractors serving Ashby
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
- FOAM RUNBased in Ashby★★★★★5.0 Google rating
- J. Smart ContractingServes Ashby · 4.2 mi★★★★★5.0 Google rating
491 Main St, West Townsend, MA 01474
- Graphite Insulating System IncServes Ashby · 9.9 mi★★★★★5.0 Google rating
36 Lachance St, Gardner, MA 01440
- Supreme Home ExpertsServes Ashby · 11.6 mi★★★★★5.0 Google rating
29 Miller St, Leominster, MA 01453
- JM All-Pro ServicesServes Ashby · 19.2 mi★★★★★5.0 Google rating
208 Walnut St, Clinton, MA 01510
- Home Improvements PlusServes Ashby · 23.4 mi★★★★★5.0 Google rating
211 Randall Rd, Stow, MA 01775
- Green Insulation GroupServes Ashby · 24.6 mi★★★★★5.0 Google rating
10 Pullman St, Worcester, MA 01601
- Makeover and Finishes Group IncServes Ashby · 24.6 mi★★★★★5.0 Google rating
289 Great Rd #302, Acton, MA 01720
- Star InsulationServes Ashby · 26.2 mi★★★★★5.0 Google rating
731B Dutton St, Lowell, MA 01852
- Italian Construction CompanyServes Ashby · 26.4 mi★★★★★5.0 Google rating
224 Union St, Marlborough, MA 01752
- Affordable InsulationServes Ashby · 26.8 mi★★★★★5.0 Google rating
91 Maple St STE 9, Lowell, MA 01852
- Prosper Construction "The Lifetime Warranty Company"Serves Ashby · 26.9 mi★★★★★5.0 Google rating
311 Main St, Shrewsbury, MA 01545
- Jula Home ImprovementServes Ashby · 27.3 mi★★★★★5.0 Google rating
9 Lexington Rd, Northborough, MA 01532
- Energy ProtectorsServes Ashby · 29.4 mi★★★★★5.0 Google rating
64 Paxton Rd, Spencer, MA 01562
- 1A Home EnergyServes Ashby · 29.5 mi★★★★★5.0 Google rating
165 Memorial Dr A, Shrewsbury, MA 01545
- Eyles ContractingServes Ashby · 8.1 mi★★★★★4.9 Google rating
65 Airport Rd, Fitchburg, MA 01420
- Papalia Home ServicesServes Ashby · 20.1 mi★★★★★4.9 Google rating
1220 Liberty Square Rd, Boxborough, MA 01719
- David Monteiro Contracting Inc.Serves Ashby · 22.0 mi★★★★★4.9 Google rating
1 Century Mill Rd, Bolton, MA 01740
- Modern EnergyServes Ashby · 25.3 mi★★★★★4.9 Google rating
24 Rockdale St, Worcester, MA 01606
- MEF Contracting, Inc.Serves Ashby · 26.9 mi★★★★★4.9 Google rating
1461 Main St, Concord, MA 01742
- The Best InsulationServes Ashby · 27.0 mi★★★★★4.9 Google rating
47 Sullivan Rd #05, North Billerica, MA 01862
- Carbonneau Insulation CoServes Ashby · 29.0 mi★★★★★4.9 Google rating
662 Clark Rd, Tewksbury, MA 01876
- Dolphin Insulation, Inc.Serves Ashby · 20.3 mi★★★★★4.8 Google rating
410 Great Rd, Littleton, MA 01460
- Poly-CelServes Ashby · 24.4 mi★★★★★4.8 Google rating
6 Eastern Rd, Acton, MA 01720
- Solid State ConstructionServes Ashby · 13.3 mi★★★★★4.7 Google rating
2 Shaker Rd Unit B104, Shirley, MA 01464
- Fabios Construction Inc.Serves Ashby · 27.3 mi★★★★★4.7 Google rating
336 Baker Ave, Concord, MA 01742
- Endless EnergyServes Ashby · 27.7 mi★★★★★4.7 Google rating
261 Cedar Hill St, Marlborough, MA 01752
- Wattson Home SolutionsServes Ashby · 29.2 mi★★★★☆4.4 Google rating
100 Lamartine St, Worcester, MA 01608
- Serves Ashby · 5.0 mi
168 Lunenburg Rd, West Townsend, MA 01474
- Serves Ashby · 29.7 mi
1049 Main St, Worcester, MA 01603
Mass Save in AshbyEligible
Ashby is served by Unitil, an investor-owned utility, so homeowners here are eligible for Mass Save. The program treats insulation and air sealing as its flagship weatherization measures: a no-cost Mass Save Home Energy Assessment is the first step, and Mass Save then typically covers 75–100% of approved attic, wall, and air-sealing costs — 100% for income-eligible households.
For the homeowner share, the 0% Mass Save HEAT Loan runs up to $25,000. Expect the assessment to flag any knob-and-tube wiring or pre-1981 vermiculite that has to be handled before insulating.
Insulation in Ashby — what to know
Permits in Ashby
Insulation work in Ashby generally needs no standalone building permit, but the contractor should carry a Home Improvement Contractor (HIC) registration, and any related structural work calls for a Construction Supervisor License (CSL). Mass Save work has to go through a participating or approved contractor for the incentives to apply. Spray foam must meet the state's fire and ignition-barrier code, with a covering or approved coating in living and crawl spaces. If knob-and-tube wiring turns up, a licensed electrician has to de-energize or replace it before dense-packing the walls.
Where a permit is required, insulation work in Ashby is filed with the Ashby Building Department; see the Ashby Building Department’s contact, portal and who pulls the permit on permits.llc.
Typical project cost
In a rural north-central town like Ashby, insulation pricing tends to sit a touch below Boston-metro rates, though long drive times to wooded lots can offset that. 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. The bigger point: because Ashby is a Mass Save town, the 75–100% incentive can bring out-of-pocket close to zero on approved attic and air-sealing work, with the HEAT Loan covering whatever's left.
About Ashby homes
Ashby is a rural Middlesex County town of about 3,187 people across roughly 1,303 housing units, tucked up against the New Hampshire line. Its median home dates to the early 1960s, so the housing mix leans toward post-war capes, ranches, and farmhouses on wooded lots rather than the dense balloon-framed Victorians you see closer to Boston.
For insulation work that means a lot of under-insulated attics, vented crawl spaces, and rim joists that were never sealed. Older farmhouse holdouts can still hide knob-and-tube wiring or, in pre-1981 homes, vermiculite attic fill that needs checking before any crew blows in cellulose.
Common questions — Insulation in Ashby
- Does Mass Save pay for insulation in Ashby?
- Yes. Ashby 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 1960s Ashby cape has an under-insulated attic. Where do I start?
- Book the no-cost Mass Save assessment first. Attic insulation and air sealing are the highest-payback measures in a mid-century cape, and they're the work Mass Save subsidizes most heavily.
- Do I need to worry about vermiculite in an older Ashby farmhouse?
- If the home predates 1981, possibly. Vermiculite attic fill can contain asbestos and needs testing; an assessment or contractor will flag it, and abatement has to happen before new insulation goes in.
- Does insulation work in Ashby require a building permit?
- Usually not for the insulation itself. The contractor should hold a valid HIC registration, and spray foam has to meet the state fire-barrier code. Knob-and-tube wiring must be addressed by an electrician before dense-packing walls.
