Insulation contractor in Dorchester, New Hampshire
Looking for an insulation company near you in Dorchester? We are a family-owned NHSaves® participating contractor with BPI-certified staff, doing attic and wall insulation, air sealing and cold-climate heat pumps across Grafton County. Most of the insulation work is paid for by your utility's program.
What we see in Dorchester homes
The typical Dorchester home was built between 1950 and 1980, which usually means R-11 fiberglass batts in the walls, a thin layer of batts on the attic floor, no air sealing anywhere, and a rim joist that was never insulated. Ranches, split-levels and garrison colonials from these decades are the bread and butter of our NHSaves work: air seal and top up the attic, foam the rim joist, and the house feels like a different place.
About 51% of owner-occupied homes in Dorchester heat with oil or propane, the most expensive fuels in New England per unit of heat. That is why air sealing and insulation pay back so quickly here, and why a cold-climate heat pump is often the next step: it can carry most of the season at a fraction of the cost of delivered fuel. Around 45% heat primarily with wood or pellets. A tighter house means fewer cords a winter, and a heat pump can take the shoulder seasons so the stove runs only when it is truly cold.
Housing figures: U.S. Census Bureau, American Community Survey 2020 to 2024 five-year estimates for Dorchester; heating fuel shares are for owner-occupied homes.
NHSaves rebates in Dorchester
Most of Dorchester is served by the NH Electric Co-op for electricity and none for natural gas. All of them are NHSaves utilities. If you heat with natural gas your Home Energy Performance rebate comes through none; if you heat with anything else it comes through the NH Electric Co-op.
On most Home Energy Performance projects the program pays 100% of air sealing and 75% of insulation, up to $6,000 per home, and your share can go on a 0% or 2% program loan. We assess the house, model it, file with the utility and take the rebate off the invoice. How the program works.
Many Dorchester households also qualify for the program’s income-eligible side. Households at or below 60% of the state median income get the work covered in full through NHSaves Home Energy Assistance, and Eversource customers up to the state median income can get an enhanced no-cost package. Tell us roughly what the household earns and we will point you to the right program; nothing is filed without your say-so.
How much fuel a Dorchester home needs to use to qualify
| Fuel | Utility | Enrollment line | Qualifies outright |
|---|---|---|---|
| Heating oil | the NH Electric Co-op | 702 gallons | 1,052 gallons |
| Propane | the NH Electric Co-op | 1,064 gallons | 1,596 gallons |
| Natural gas | none | 972 therms | 1,458 therms |
For a 1,800 sq ft home in Dorchester at 8,997 heating degree days (estimated from the nearest weather station). Yearly fuel use at or above the enrollment line gets the utility’s enrollment form; above the higher figure the home qualifies with any utility. A wood or pellet stove counts toward the total. Pre-screen only: the utility’s calculator and the assessment decide.
Check your own Dorchester home
Your ZIP code is filled in. Add your heating fuel and the heated square feet; add last year's fuel for a score, and tick the box if a wood or pellet stove helps heat the house.
Services in Dorchester
- Attic insulation and air sealing: blower-door directed sealing of the attic floor, then blown cellulose to R-38 or better, with baffles and an insulated hatch.
- Dense-pack wall insulation for the empty cavities in older Dorchester capes, colonials and farmhouses.
- Basement, rim joist and crawl space: closed-cell foam at the rim, sealed vapor barriers in crawl spaces.
- Cold-climate heat pumps and ductless mini-splits, sized for the house after the envelope work.
- NHSaves rebates filed with your utility and taken off the invoice.
Why Dorchester homeowners call us
- Family owned and operated; our own crews, no subcontractors
- BPI-certified building analysts test every house before and after
- OSHA 30 trained managers and OSHA 10 trained crews
- NHSaves paperwork, permits and inspections handled for you
- Written scope and price before anything is scheduled
Questions from Dorchester homeowners
How much does insulation cost in Dorchester, NH?
It depends on the house, but for a typical Dorchester home the NHSaves program pays 100% of the air sealing and 75% of the insulation, up to $6,000, so most homeowners pay a quarter of the insulation cost and nothing for the air sealing. We give you the exact figure in writing after the assessment, and 0% or 2% financing is available for your share.
Do you serve all of Dorchester?
Yes, every neighborhood in Dorchester (03266) and the surrounding towns in Grafton County.
Which utility runs the NHSaves rebate in Dorchester?
Most of Dorchester is served by the NH Electric Co-op for electricity and none for natural gas. All of them are NHSaves utilities. If you heat with natural gas your Home Energy Performance rebate comes through none; if you heat with anything else it comes through the NH Electric Co-op.
Can you install a heat pump in my Dorchester home?
Yes. We install cold-climate ductless mini-splits and ducted heat pumps across Dorchester and Grafton County, sized from a load calculation after the insulation work, with the the NH Electric Co-op heat pump rebate filed for you.
Does a wood stove count toward qualifying in Dorchester?
Yes. The program adds up every fuel the house burns, so the cords or pellet tons you go through in Dorchester winters count alongside oil or propane. Many homes here qualify once the stove is included.
Do you install heat pumps in Dorchester?
Yes. Cold-climate ductless and ducted heat pumps for Dorchester homes, sized after the insulation work so the system is not oversized, with your utility's heat pump rebate filed for you.
Nearby towns we serve
Ready to warm up your Dorchester home?
Book a home energy assessment and find out what NHSaves will cover on your house.