Mass Save Home Insulation Rebate

National Grid / Mass Save

Available Weatherization

About This Program

Covers 75% to 100% of insulation and air sealing costs for qualifying homes after a free Mass Save energy assessment. Income-eligible customers receive 100% coverage. Includes attic, wall, and basement insulation plus air sealing.

Moderate-income customers pay 25%; income-qualified customers pay nothing

Key Details

  • 75-100% coverage of insulation and air sealing
  • Free home energy assessment required first
  • 100% coverage for income-eligible households
  • Includes attic, wall, basement insulation
  • No-cost air sealing for qualifying homes

How to Apply

Get free help applying Visit Official Program Page Track this program

(866) 527-7283

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

Deadline: Ongoing; schedule free assessment first

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