Mass Save Insulation & Air Sealing

Mass Save (Unitil Electric / National Grid Gas)

Available Weatherization

About This Program

Mass Save covers 75% of insulation and air sealing costs for all Gardner customers, and 100% for income-eligible households. Services include attic, wall, and basement insulation plus comprehensive air sealing.

Typical project costs $4,000-$6,000; program covers 75-100%

Key Details

  • 75% of insulation costs covered (100% for low-income)
  • Attic, wall, and basement insulation eligible
  • Air sealing included in service
  • Free home energy assessment required
  • No-interest HEAT Loan available for balance

How to Apply

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

Deadline: Rolling applications

Need a Contractor for This Grant?

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

Find More Programs in Gardner, MA

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