Energy Efficient Windows Rebates

Overview

Installing energy-efficient windows can lower your utility bills and make your home more comfortable year-round. If your house was built before 1988, has electric heat and either single-pane windows or double-pane metal windows, upgrading will help conserve energy and save you a significant amount of money each year.

To ensure efficiency, new windows must be installed according to the manufacturer’s recommendations. That is why we recommend you have a licensed contractor install your windows. A professional can also help you select the right windows for your house.

Window Replacement Rebate Details*

For Properties with Single-Pane Windows:

Houses and rental properties up to four units built prior to 1988 may qualify for a $10 per square foot rebate to replace existing single-pane windows with windows rated at .30 U-value or lower.

For Properties with Double-Pane Metal Windows:

Houses and rental properties up to four units built prior to 1988 may qualify for a $5 per square foot rebate to replace existing double-pane metal windows with windows rated at .30 U-value or lower.

Many manufacturers also offer rebates you can use along with ours to save even more. Consult your contractor for details.

Rebate Requirements

  • Home must have been built before 1988
  • Existing windows must be single-pane windows or double-pane metal windows
  • Your primary heat source must be electric
  • Your home must meet Tacoma Power’s insulation levels:
    • Attic insulation must have a rating of R12 or greater
    • Walls and floors must be insulated (no minimum R-rating requirement)

If you are installing the windows yourself, in addition to the above requirements:

  • You must submit copies of product receipts or invoices
  • Rebate applies only to materials, not labor costs
  • Rebate cannot exceed the cost of materials

Not Eligible:

  • New construction
  • Manufactured homes
  • Homes with an existing central heat pump
  • Rental properties with five or more units
    Please note that customers are eligible for either a rebate, loan or income-eligible grant but not a combination of these.

Window Replacement Loan Details

We offer a seven-year, zero-interest loan of up to $23 per square foot for replacement of single-pane windows and double-pane metal windows in homes and rental properties up to four units. You must have good TPU payment and credit history to be eligible. The minimum loan amount is $1,000.

Loan Requirements

  • Home must have been built before 1988
  • Existing windows must be single-pane windows or double-pane metal windows
  • Your primary heat source must be electric
  • Your home must meet Tacoma Power’s insulation levels:
    • Attic insulation must have a rating of R12 or greater
    • Walls and floors must be insulated (no minimum R-rating requirement)
  • Work must be completed by a licensed contractor with an active Trade Ally Agreement with Tacoma Power

Not Eligible

  • Limited Liability Companies (LLCs) and corporations
  • Rental properties with five or more units

Window Replacement Income-Eligible Grant Details

Based on your income, you may be eligible to receive a grant of up to $23 per square foot for the replacement of single-pane windows or double-pane metal windows in owner-occupied homes built prior to 1988.

Grant Requirements

  • Home must be occupied by owner
  • Home must have been built before 1988
  • Existing windows must be single-pane windows or double-pane metal windows
  • Your primary heat source must be electric
  • Your home must meet Tacoma Power’s insulation levels:
    • Attic insulation must have a rating of R12 or greater
    • Walls and floors must be insulated (no minimum R-rating requirement)
  • Homeowner must submit a Grant Application complete with supporting documents including income information
  • Work must be completed by a licensed contractor with an active Trade Ally Agreement with Tacoma Power

Not Eligible

  • Rental properties
  • Condominiums with 5+ units in the building
  • Manufactured homes

How to Apply 

Simply fill out the relevant application below, check the box next to the rebate you want to claim and submit it to us.

Additional relevant documents and checklists

To learn more, see our Rebates page and our Rebate FAQs.

*Program requirements and rebate amounts are subject to change without notice. Check with Tacoma Power for current information. Energy and heating savings are estimates only. Actual savings may vary. Tacoma Power does not make any representations, promises or warranties with respect to actual cost savings from any of the products. Tacoma Power does not endorse any particular contractor, manufacturer or product.

Close