Mass Save (National Grid & Eversource)
Mass Save Insulation & Air Sealing Rebate is available to homeowners in Billerica, MA.
Rebates covering 75% to 100% of insulation and air sealing costs for Billerica homeowners. Includes attic, wall, and basement insulation plus air sealing. Moderate-income households may receive 100% coverage. Requires a Mass Save Home Energy Assessment first.
Typical 75% rebate on attic and wall insulation project
Verified against Mass Save (National Grid & Eversource)'s official page on 2026-06-17.
Data last verified 2026-06-09. How we verify our data.
In Billerica, MA, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Billerica, MA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
This grant requires a licensed contractor
This grant requires the work to be done by a licensed contractor, and you will likely need a written estimate to apply. Get a free estimate from a contractor in Billerica who knows grant paperwork.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
Mass Save offers this rebate to its residential customers who install the qualifying energy-efficient equipment this program covers. You apply through the utility's rebate program, usually online with your account, your paid invoice, and the equipment's model or efficiency rating. Many rebates are submitted by a participating contractor and paid after the equipment is installed, so confirm the current rebate and rules on the official page first.
Steps to apply
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Ongoing year-round
Ask us. It is free, and a real person answers within a business day.
Email us about this program75-100% of project cost.
Mass Save Insulation & Air Sealing Rebate is open to homeowners in Billerica, MA. It has no income limit.
Apply directly with Mass Save (National Grid & Eversource) using the official program link on this page or call (866) 527-7283. There is no middleman and no fee.
Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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