LONE PEAK WINDOWS
Utah window rebates in 2026.
Two real programs, the exact conditions, every figure dated and sourced, and the one credit that no longer exists. We re-check this page against the published utility terms every month and log every change below.
First, the one that is gone.
The federal window tax credit expired December 31, 2025. It is not available for windows installed in 2026. If a quote you are looking at includes a federal tax credit, the number at the bottom of that quote is wrong.
Rocky Mountain Power - Wattsmart Home
Paid per window.
| Home type | Rebate |
|---|---|
| Electrically heated homes | $50 per window |
| Centrally cooled homes | $30 per window |
| Dual fuel heat pump homes | $30 per window |
Conditions
- Windows must be ENERGY STAR rated with a U-Factor of no more than 0.22.
- Doors and skylights must be at least 80 percent glass by square footage and carry a U-Factor of no more than 0.22.
- Existing single-family home. New construction does not qualify, and manufactured homes do not qualify.
- You must live in Utah and buy electricity from Rocky Mountain Power on rate schedule 1, 2, or 3.
- The home needs electric heating or a central cooling system serving at least 80 percent of its conditioned floor area.
- Windows must go into finished or conditioned living space with a permanently installed HVAC system. Garages do not qualify.
- Work must comply with all building codes and standards.
- Windows may be installed by a program-participating contractor or self-installed.
Deadline
Applications are due within 180 days of the installation being completed. Approved rebates are issued within 14 business days after review.
Recent change
This program moved from a per-square-foot structure to a per-window structure effective February 27, 2026. The dual fuel heat pump tier applies to installations on or after that date.
Read the published terms from Rocky Mountain Power
Every figure and condition above was checked on 2026-10-17 against the published Rocky Mountain Power terms at that link. When the utility changes its terms, this section changes on the next monthly verification and the change log below records it.
Enbridge Gas - ThermWise Weatherization Rebates
Paid per square foot of window area.
| Home type | Rebate |
|---|---|
| High performance insulating windows | $2.50 per square foot |
Conditions
- Windows must have a U-Factor of 0.22 or lower. Windows above 0.22 do not qualify at all.
- Existing dwelling with an active Enbridge Gas meter. New construction does not qualify.
- The household must have primary gas heating on a GS rate schedule.
- You submit the dimensions of every installed window plus the original or a copy of the NFRC sticker from each one.
- You also submit a recent Enbridge Gas bill and an itemized invoice showing the contractor, dates, manufacturer, model, dimensions, U-Factor, price, and proof of payment.
- Contractor installation is not required.
Deadline
The rebate request must be postmarked within 6 months of the installation date. The 2026 promotion runs 01/01/2026 through 12/31/2026.
Read the published terms from Enbridge Gas
Every figure and condition above was checked on 2026-10-17 against the published Enbridge Gas terms at that link. When the utility changes its terms, this section changes on the next monthly verification and the change log below records it.
The short version
Both programs draw the same line: a U-Factor of 0.22 or lower on the NFRC sticker. Both are for existing homes only. One pays per window, one pays per square foot, so which is worth more to you depends on the size of your glass.
Keep every NFRC sticker and every itemized invoice. Those two pieces of paper are what the applications are built around, and they are the most common reason a rebate stalls.
Rebate approval is made by the utility. Program terms are set by the utilities and change with notice. These figures were checked against the published program terms on the date shown above, and we check them again every month. We will tell you honestly whether the glass package you are quoted qualifies.
Rebate questions, answered straight
Is there still a federal tax credit for windows in 2026?
No. The federal tax credit for energy efficient windows expired on December 31, 2025, and it does not apply to windows installed in 2026. If a quote includes it, the number at the bottom of that quote is wrong.
Are there grants for window replacement in Utah in 2026?
Not for most homeowners. The federal window tax credit expired December 31, 2025, and the two programs on this page are rebates paid after installation. Income-qualified households can apply to Utah's Weatherization Assistance Program, which makes energy-efficiency improvements at no cost to homeowners who qualify. It serves households at or below 200 percent of the federal poverty level and current HEAT recipients, through a local agency. In Utah County that agency is Mountainland Association of Governments. The program decides which improvements a home gets.
What U-Factor qualifies for Utah window rebates in 2026?
0.22 or lower on the NFRC sticker, for both programs. Rocky Mountain Power also requires the window to be ENERGY STAR rated. There is no partial credit above 0.22 under either program.
How much is the Rocky Mountain Power Wattsmart window rebate?
It pays per window: $50 per window on electrically heated homes, and $30 per window on centrally cooled homes and on dual fuel heat pump homes. Existing single-family homes only, on rate schedule 1, 2, or 3. Applications are due within 180 days of the installation being completed.
How much is the Enbridge Gas ThermWise window rebate in 2026?
It pays $2.50 per square foot of window area on qualifying windows, for existing homes with primary gas heating on a GS rate schedule. The rebate request must be postmarked within 6 months of the installation date, and the 2026 promotion runs 01/01/2026 through 12/31/2026.
Can I get both Utah window rebates on the same project?
They are separate programs from separate utilities with separate applications, so they are not exclusive of each other. A home with primary gas heat on an Enbridge GS rate schedule and central cooling served by Rocky Mountain Power can meet both sets of conditions. Approval is always the utility's decision.
What paperwork do the Utah window rebate applications need?
Keep the NFRC sticker from every window and the itemized invoice. ThermWise asks for the dimensions of every installed window, the original or a copy of each NFRC sticker, a recent Enbridge Gas bill, and an itemized invoice showing the contractor, dates, manufacturer, model, dimensions, U-Factor, price, and proof of payment. Losing the stickers is the most common way people lose this money.
Change log
Every verified change to the utility terms, newest first. If it is not listed here, it did not change.
- 2026-10-17, Both programs. Figures on this page re-verified against the published Wattsmart and ThermWise terms, including the 2026 ThermWise single-family windows application form. No changes found.
- 2026-08-27, Both programs. Figures on this page re-verified against the published Wattsmart and ThermWise terms, including the 2026 ThermWise single-family windows application form. No changes found. Change history published.
- 2026-02-27, Wattsmart Home. Rocky Mountain Power moved the windows incentive from a per-square-foot structure to a per-window structure: $50 per window on electrically heated homes, $30 per window on centrally cooled homes. A $30 per window dual fuel heat pump tier applies to installations on or after this date.
- 2026-01-01, ThermWise. The 2026 promotion window opened: $2.50 per square foot on qualifying windows with a U-Factor of 0.22 or lower, running 01/01/2026 through 12/31/2026.
- 2025-12-31, Federal tax credit. The federal energy efficient window tax credit expired. It does not apply to windows installed in 2026.
What every job includes
A licensed Utah window installer. The exact window and price in writing. Manufacturer warranties on paper. Written three-day cancellation rights on every in-home sale. One price that does not change.
Where we work
Call or text. A person answers.
385.208.9653Or send us a few details and we will get you a free quote.
Serving Highland, Alpine, Lehi, American Fork, Cedar Hills, Pleasant Grove.