Ensure the manufactured home qualifies:

• Must be an existing manufactured home; new construction is not eligible for this incentive.
• Work completed must comply with all building codes and standards.
• For each area of the home, limit one incentive per insulation type, for the lifetime of the home.
• Work performed as part of building code requirements do not qualify.
• Homes built in or after 2013 do not qualify.
• Electric heat is defined as a permanently installed system consisting of an electric furnace, heat pump or electric zonal heating system (baseboard or ceiling/wall heaters) serving as the home’s primary heat source (space heaters do not qualify).
• Non-electric heating or cooling is defined as a heating or cooling system with gas, oil, wood heating, pellet stoves, or propane serving as the home’s current primary heat or cooling source.

Requirements for all insulation projects:

• 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.
• Insulation must be installed according to the specifications outlined in the Washington Technical Specifications Manual.
• Insulation must be installed between unconditioned and conditioned living spaces.
• Insulation may be self-installed by the customer.

Additional requirements for attic insulation:

• Existing R-value must be no more than R-0.
• Final R-value depth must be equal to or greater than R-22.

OR

• Existing R-value must be equal to or less than R-11.
• Final R-value depth must be equal to or greater than R-30.

Additional requirements for floor insulation:

• Existing R-value must be no more than R-0
• Final R-value depth must be equal to or greater than R-22

Additional program rules:

• Submit all documents within 90 days of the qualifying service completion date.
•  Application must be submitted within 90 days of purchasing your new energy-efficient product.
• Incentive may not exceed total cost of the project.
• Self-installed insulation are eligible for incentives on materials only.
• For each area of the home, limit one incentive per insulation type for the lifetime of the home.
• Incentive is paid by square footage of installed insulation.

Required Documents:

• Incentive Application, completed and signed*
• Itemized receipt or contractor invoice must include:
  • Product and/or installation costs (materials, labor, service).
  • Date work initiated.
  • Date work completed.
  • Square footage of area(s) insulated.
  • Pre-existing R-value.
  • Added R-value.
  • Retailer and/or trade ally business name.
• Third Party Payment Addendum (only for homeowners and other third-party entities not listed on account and applying for incentives)
• IRS W-9 Form, if applicable**

To ensure your home is eligible for an incentive and below the maximum insulation depth requirements, please use the Insulation Depth Calculator. Prior to your contractor recording measurements, take a peak in your attic and do it yourself!

*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 with 45 days notice. Additional terms and conditions may apply.