Mass Save Insulation & Air Sealing Rebate

Mass Save (National Grid & Eversource)

Available Weatherization

About This Program

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

Key Details

  • 75–100% rebate on insulation and air sealing
  • Covers attic, walls, basement, rim joists
  • 100% coverage for moderate-income households
  • Must complete free Home Energy Assessment first
  • Use Mass Save qualified contractor

How to Apply

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

Deadline: Ongoing year-round

Need a Contractor for This Grant?

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

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