Tax credits may also be available for these upgrades.

To learn more about these tax credits visit the ENERGY STAR® website.

Ensure the home qualifies:

• Must be an existing single-family, multifamily, or manufactured home.
• New construction is not eligible for this incentive.
• Home’s primary heat source must be electric baseboard, electric ceiling or wall heat, electric furnace, ductless heat pump, or electric ducted heat pump (space heaters do not qualify).
• Primary heating sources that are gas, oil, propane, wood, or other non-electric sources do not qualify.

Requirements for windows:

• Sliding glass doors must be 80 percent glazed to qualify.
• Incentives are limited to one-time installations within the qualified space of the home.
• Window units that have precisely received an incentive through the program do not qualify for additional incentives if replaced.
• Work must be completed by a Wattsmart Vendor Network contractor. Find a program-qualified contractor with the Find A Vendor tool. Contractors must be on the list at the time of equipment installation.
• Windows must be installed in a conditioned living space with a permanently installed heating system.
• Windows must be installed according to the specifications outlined in the Washington Technical Specifications Manual
• Work completed must comply with all building codes and standards.
• Work completed as part of building code requirements do not qualify.

Additional program rules:

• Incentive application and supporting documentation must be postmarked or submitted online within 90 days of equipment installation.
• Application must be submitted within 90 days of purchasing your new energy-efficient product.
• Incentive may not exceed the total cost of the project.
• Self-installers are eligible for incentives on materials only.
• Incentives are limited to one-time installations within the qualified space of the home and will not exceed window purchase price.
• Window units that have previously received an incentive through the program do not qualify for additional incentives if replaced.
• Applicant must include pictures of single or double pane windows as proof of pre-condition to qualify for the higher single-family window incentives.

Required documents:

• • Incentive Application, completed and signed *
  • Itemized receipt or contractor invoice must include:
    • Product and/or installation costs (materials, labor, service).
    • Quantity of windows.
    • Dimensions of each window.
    • Date of purchase.
    • Date work initiated.
    • Date work completed.
    • Retailer and/or trade ally business name.
  • Manufacturer’s specifications sheet or NFRC (National Fenestration Rating Council) stickers for each window.
  • Third Party Payment Addendum (only for property owners and other third-party entities not listed on account and applying for incentives).
  • IRS W-9 Form, if applicable **
    * If mailing, please make copies for your records and note the date mailed on the application.
    ** Applicable only to businesses and non-individual customers, including landlords, applying for incentives.

Incentives are associated with the Home Energy Savings program January 1, 2024 tariff filing approved by the Washington Utilities and Transportation Commission. All incentives are subject to change within 45 days notice. Additional terms and conditions may apply.