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Insulation Rebates Up to $8,600

For insulation upgrades completed on or after October 1, 2026

REBATE CLAIM FORMFind an Installer

INSULATION REBATES AND ZONES Low Income Moderate Income Any Income
Small Attic, Wall, and/or Basement
250 – 499 square feet insulated in each zone completed*		 $2,000
per zone*		 $1,500
per zone*		 $1,000
per zone*
Large Attic, Wall, and/or Basement
At least 500 square feet insulated in each zone completed*		 $4,000
per zone*		 $3,000
per zone*		 $2,000
per zone*
Mobile Home Underbelly
At least 500 square feet insulated		 $5,000 $4,000 $3,000
AIR SEALING REBATES AND ZONES
 Low Income Moderate Income Any Income
All accessible attic air leaks sealed $300 $225 $150
All accessible basement or mobile home underbelly air leaks sealed $200 $150 $100
Air sealing performed in the living space, including reducing drafts around doors and windows $100 $75 $50
LIFETIME REBATE LIMITS per Building or Condominium One insulation rebate per zone
One air sealing rebate per zone
Up to $5,600 per mobile home
Up to $8,600 for all other homes

* Insulation Zone Definitions:

  • Attic – The combination of all attics and/or cathedral ceilings, including all floors, walls and slopes that are exposed to any attic area.
  • Wall – The combination of all exterior (framed) walls of a home (excludes mobile home walls).
  • One of the following:
    • Basement – The combination of all floors that separate conditioned space from unconditioned space or outside air (e.g., a basement ceiling) and/or any concrete foundation wall, including the floor of a mobile home on a foundation.
    • Mobile Home Underbelly – The space beneath the floor of a mobile home that is not on a foundation.

Efficiency Maine Rebate Eligibility

  Low Income Moderate Income Any Income
Homeowner

Eligibility verification required for at least one homeowner or homeowner’s household member:

  • HEAP,
  • SNAP,
  • TANF, or
  • MaineCare participants

Eligibility verification required:

  • Homeowner’s Adjusted Gross Income up to $70,000 for individual tax filers, or $100,000 for joint filers
 Homeowners of any income
Building Type Single-family house, two-unit duplex, condominium, or mixed-use building with one or two housing units and no commercial electrical meter(s). Click here for all other building types. Single-family house, two-unit duplex, condominium, or mixed-use building with one or two housing units and no commercial electrical meter(s). Click here for all other building types. Single-family house, two-unit duplex, condominium, or mixed-use building with one or two housing units and no commercial electrical meter(s). Click here for all other building types.
Building Construction Upgrade not part of construction of new home or addition Upgrade not part of construction of new home or addition Upgrade not part of construction of new home or addition
Building Occupancy Owner-occupied principal residence Owner-occupied principal residence Any
Building Location Maine Maine Maine
Insulated Space Heated the entire heating season Heated the entire heating season Heated the entire heating season
Installer Must be installed by an Efficiency Maine Residential Registered Vendor for insulation and air sealing Must be installed by an Efficiency Maine Residential Registered Vendor for insulation and air sealing Must be installed by an Efficiency Maine Residential Registered Vendor for insulation and air sealing
Timeframe Rebate claim form emailed or postmarked within six months of project completion Rebate claim form emailed or postmarked within six months of project completion Rebate claim form emailed or postmarked within six months of project completion
Upgrade Upgrade installed in accordance with Weatherization Requirements Checklist. Upgrade installed in accordance with Weatherization Requirements Checklist. Upgrade installed in accordance with Weatherization Requirements Checklist.
Eligible for Efficiency Maine Home Energy Loan? Yes Yes Yes

How to Get a Rebate

  1. Verify eligibility for enhanced low- and moderate-income rebates (if applicable)
  2. Hire/contract with a Residential Registered Vendor
  3. Complete upgrade
  4. Submit rebate claim form
  5. Efficiency Maine sends rebate check

Terms and Conditions

Only one rebate will be paid for any given upgrade. Efficiency Maine does not warrant the performance of rebated upgrades. Program and incentives subject to change or termination. Please allow six weeks for rebate processing. Incomplete information may delay or disqualify your rebate. Efficiency Maine reserves the right to verify installation and perform an inspection.