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Windows and Sliding Glass Patio Doors

$1.75-$4.00 per square foot

Replacing old, leaky windows with high-efficiency windows can do more than save energy. It can also improve indoor air quality, reduce drafts and condensation, decrease outside noise and increase curb appeal.

To get started on your energy-efficient upgrade follow the steps below or contact a program representative.

  1. Establish your eligibility.

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    • Property’s heating fuel source must be electricity provided by Portland General Electric or Pacific Power; or natural gas provided by NW Natural, Cascade Natural Gas or Avista.
    • Cash incentives are available to all Oregon multifamily attached residential properties with two or more units including: duplexes, triplexes and fourplexes; side-by-side units; and stacked structures with five or more units (electric only). For specific incentives based on your building type see the “Details” tab for further eligibility requirements.
    • Energy-saving improvements must meet program requirements.
  2. Find a trade ally contractor or work with your own contractor.

    We can help you get started.

  3. Schedule a walkthrough survey or pre-installation verification before starting a windows project.

    If you haven’t already had a walkthrough survey performed at your property call 877.510.2130 or submit Form 300N Enrollment Agreement to request one.

  4. Submit documentation.

    • Include Windows Supplement, if applicable (PDF | Doc)
    • A W-9 or Substitute W-9 form is required for investment properties.
    • Energy Trust must receive applications within 90 days from the date of purchase and installation.
  5. Get your incentive.

    You should receive a cash incentive check within 6-8 weeks after all information is received.

    Note: A post-installation verification may apply for all equipment not installed by a licensed contractor. A post-installation verification may also be performed if your incentive amount is $3,000 or more.

Projects must be installed in accordance with the specifications outlined in the Existing Multifamily Weatherization Specifications Manual.

For Electric and Gas Customers - Side-by-side, duplex, triplex and fourplex properties* Incentive Requirements
Windows $1.75 per square foot

U-Value 0.28-0.30

Windows $4.00 per square foot

U-Value 0.27 or lower

For Electric Customers - Stacked Structures with 5 units or more** Incentive Requirements
Windows $3 per square foot

U-Value 0.30 or lower, replacing single-pane or storm windows

Windows $2 per square foot

U-value 0.30 or lower, replacing double-pane windows

*Eligible projects for Portland General Electric and Pacific Power customers with electric heat.

**Eligible projects for NW Natural, Cascade Natural Gas and Avista customers with natural gas heat.

Incentives are subject to funding availability and may change.

Need Help? Contact Us.

We’re here to explain the process and benefits. Give us a call at 1.877.510.2130 or send us an email at