Mass Save Home Energy Assessment

National Grid / Mass Save

Available Weatherization

About This Program

Free in-home energy assessment with instant rebates on LED bulbs, programmable thermostats, low-flow fixtures, and air sealing. Income-eligible customers receive 100% off insulation and weatherization improvements.

Instant savings plus potential full weatherization coverage for income-qualified residents

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

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

Key Details

  • Free home energy assessment
  • Instant rebates on energy-saving products
  • Income-qualified customers get 75-100% off insulation
  • Air sealing and duct sealing included
  • Available to all Shrewsbury residents

How to Apply

Get free help applying Visit Official Program Page Track this program

(866) 527-7283

A grant-savvy contractor in Shrewsbury, 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 Shrewsbury 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

Questions about this program?

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

Email us about this program

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Shrewsbury, MA contractors

Find More Programs in Shrewsbury, MA

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

See All Programs