Mass Save Window and Door Rebate

Mass Save / National Grid / Eversource

Available Weatherization

About This Program

Rebates for ENERGY STAR certified replacement windows and doors. Requires a Mass Save home energy assessment first. Income-eligible customers may receive enhanced rebates and additional incentives for comprehensive window replacement projects.

Rebate varies by number of windows and income; estimate for 8-10 windows

Official program page checked live on 2026-06-17.

Data last verified 2026-06-09. How we verify our data.

Key Details

  • Up to $2,000 rebate for ENERGY STAR windows/doors
  • Requires Mass Save home energy assessment first
  • Enhanced rebates for income-eligible customers
  • Covers replacement windows and exterior doors
  • Must meet ENERGY STAR certification requirements

How to Apply

Get free help applying Visit Official Program Page Track this program

(866) 527-7283

A grant-savvy contractor in Southbridge, 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 Southbridge early keeps your application moving.

Get matched with a contractor

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 program

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