Mass Save Insulation Rebate (Standard, 75% covered)

Mass Save, Eversource / National Grid / Utilities

Available Energy Assistance

About This Program

Mass Save Insulation Rebate (Standard, 75% covered) is available to homeowners in Boston, MA.

All Massachusetts utility customers (Eversource, National Grid, etc.) can receive an instant rebate covering 75% of the cost of attic, wall, and basement insulation plus air sealing. The rebate is applied instantly at the time of installation by participating contractors. Income-eligible households (below 60% AMI) pay nothing at all. A free home energy assessment from Mass Save is required to qualify.

Instant rebate: utility pays 75% of insulation cost directly to contractor. Homeowner pays only 25%. Income-eligible (60% AMI) households pay $0.

Official program page checked live on 2026-06-22.

Data last verified 2026-04-03. How we verify our data.

In Boston, MA, you can combine this program with other local help to cut your cost:

Key Details

  • 75% of insulation and air sealing cost covered, you pay only 25%
  • Covers attic, wall, basement insulation and air sealing
  • Instant rebate applied directly at installation, no waiting
  • Income-eligible (60% AMI) households pay $0 out of pocket
  • Free home energy assessment required, schedule at masssave.com or call 866-527-7283

How to Apply

Get free help applying Visit Official Program Page Track this program

866-527-7283

A grant-savvy contractor in Boston, MA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Boston early keeps your application moving.

Get matched with a contractor

This benefit is usually applied as an instant discount, so there is no out-of-pocket wait.

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

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, 2026 program year

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

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Frequently asked questions

How much can Mass Save Insulation Rebate (Standard, 75% covered) provide in Boston, MA?

75% of insulation cost covered.

Who qualifies for Mass Save Insulation Rebate (Standard, 75% covered) in Boston?

Mass Save Insulation Rebate (Standard, 75% covered) is open to homeowners in Boston, MA. It has no income limit.

How do I apply for Mass Save Insulation Rebate (Standard, 75% covered) in Boston, MA?

Apply directly with Mass Save, Eversource / National Grid / Utilities using the official program link on this page or call 866-527-7283. There is no middleman and no fee. Deadline: Ongoing, 2026 program year.

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This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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