A Guide to Utah Window Replacement Rebate Programs
Updated: April 17, 2026
Utah homeowners replacing windows in an existing home can earn up to $50 per window through Rocky Mountain Power’s Wattsmart Homes program and $2.50 per square foot through Enbridge Gas’s ThermWise Weatherization program when they install Energy Star-certified windows with a U-factor of 0.22 or lower. If your home uses both utilities, you may qualify for both rebates on the same installation. This guide explains how each program works, what you need to qualify, and how to apply.
Key takeaways:
- Rocky Mountain Power (Wattsmart) pays $50 per window for electrically heated homes and $30 per window for electrically cooled homes.
- Enbridge Gas (ThermWise) pays $2.50 per square foot of qualifying window area.
- Homes with both Rocky Mountain Power and Enbridge Gas service may qualify for both rebates on the same project.
- All qualifying windows must be ENERGY STAR certified with a U-factor of 0.22 or lower.
- Existing homes only. New construction is not eligible for either program.
What Are the Utah Window Replacement Rebate Programs?
Two major utility providers offer window replacement rebates to Utah homeowners: Rocky Mountain Power through the Wattsmart Homes program, and Enbridge Gas through the ThermWise Weatherization program. Both programs reward homeowners who upgrade to more energy-efficient windows, and both require windows to meet the same minimum U-factor standard.
Rocky Mountain Power Wattsmart Homes
This program serves residential Rocky Mountain Power customers in Utah. It pays a flat rebate per qualifying window replaced, with the amount based on whether your home uses electric heat or electric cooling. The program was updated effective February 27, 2026, changing from a per-square-foot structure to a per-window structure.
Enbridge Gas ThermWise
This program serves Enbridge Gas residential customers in Utah, Idaho, and Wyoming. It pays $2.50 for every square foot of qualifying window area installed. It is run independently of the Wattsmart program, which means eligible homeowners can apply to both.
Who Qualifies for Utah Window Replacement Rebates?
Eligibility depends on your utility provider and the energy ratings of the windows you choose.
Rocky Mountain Power Wattsmart Requirements:
- You must be a residential Rocky Mountain Power customer in Utah.
- Your home must be an existing single-family or manufactured home. New construction does not qualify.
- Electric heating or central electric cooling must serve at least 80% of your home’s conditioned floor area.
- Replacement windows must be ENERGY STAR certified with a U-factor of 0.22 or lower.
- Windows must be installed in conditioned living spaces only.
Enbridge Gas ThermWise Requirements:
- You must be a residential Enbridge Gas customer in Utah.
- Your home must be an existing residence. New construction does not qualify.
- Replacement windows must have a U-factor of 0.22 or lower.
If your home is served by both Rocky Mountain Power (electricity) and Enbridge Gas (natural gas), you may qualify for both programs and submit applications to each after completing your installation.
How Much Can You Save with the Utah Window Replacement Rebates?
Your total rebate depends on which programs you qualify for, how many windows you replace, and the size of each window.
Rocky Mountain Power Wattsmart Rebates
| Home Setup | Rebate Per Qualifying Window |
| Electrically heated home | $50 per window |
| Electrically cooled home (no electric heat) | $30 per window |
| Dual fuel heat pump system | $30 per window |
Example: Replacing 15 windows in an electrically heated Utah home at $50 each = $750 in Wattsmart rebates.
Enbridge Gas ThermWise Rebates
Enbridge pays $2.50 for every square foot of qualifying window area. A typical double-hung window is roughly 12 to 15 square feet.
Example: Replacing 15 windows averaging 13 sq ft each = 195 sq ft x $2.50 = $487.50 in ThermWise rebates.
Stacking Both Programs
Homes served by both Rocky Mountain Power and Enbridge Gas can apply to both programs for the same window project.
| Home Utility Setup | Eligible Programs | Example Savings (15 windows) |
| Rocky Mountain Power only | Wattsmart | $450 to $750 |
| Enbridge Gas only | ThermWise | ~$488 |
| Both utilities (electric heat) | Wattsmart + ThermWise | ~$1,238 |
| Both utilities (electric cooling) | Wattsmart + ThermWise | ~$938 |
These are examples based on typical window counts and sizes. Your actual rebate depends on your utility setup, window count, and the square footage of each window. To understand your full project investment, see our guide to window replacement cost for current per-window pricing ranges in Utah.
Get the Maximum Rebate with EHI’s Triple-Pane Windows
All Energy Home Improvements triple-pane windows carry a U-factor below 0.22 as a standard spec. Every EHI window qualifies for the highest rebate tier under both programs.
After your installation is complete, we provide all the documentation you need to file your rebate applications: itemized receipts, NFRC certifications confirming your window specs, and step-by-step guidance through the submission process.
Benefits Beyond the Rebate Check
The rebate reduces your upfront cost. What you gain is a higher-performing home for years to come.
Lower energy bills. Triple-pane windows with a U-factor below 0.22 transfer significantly less heat than older single-pane or failed-seal double-pane windows, so your heating and cooling systems run less often. Actual energy savings vary based on your climate zone, home insulation, and how inefficient your previous windows were.
More consistent indoor temperatures. Cold spots near windows, drafts, and rooms that overheat in summer often signal window seal failure or outdated glass. Properly installed triple-pane windows with quality air sealing eliminate these issues and keep your home’s temperature more consistent.
A noticeably quieter home. Triple-pane glass reduces sound transmission from outside compared to single or standard double-pane windows. If your home is near a busy street, school, or commercial area, the noise reduction after installation is often substantial.
Stronger curb appeal and home value. Updated windows with modern frames contribute to your home’s overall appearance. New, energy-efficient windows in good condition are visible to buyers and contribute positively to home presentation.
How to Apply for Your Utah Window Replacement Rebate
Both programs require you to complete the installation first and then apply. Here is the full process:
- Complete your installation. Both Wattsmart and ThermWise require windows to be fully installed before you apply.
- Gather your documentation. You will need: an itemized receipt from your installer showing window costs and the installation date, NFRC certifications or labels confirming your windows’ U-factor, and your utility account number.
- Apply within the deadline. Both programs require submission within approximately 180 days of installation. Missing this window means forfeiting the rebate, so submit as soon as your project wraps up.
- Submit your application online. Wattsmart uses the Wattsmart Homes online portal; ThermWise uses the Enbridge ThermWise Rebate Center. Both programs also accept applications by mail or email.
- Wait for your rebate. Rocky Mountain Power processes Wattsmart rebates within 14 business days of approval. ThermWise timelines vary but typically resolve within a few weeks.
When you work with Energy Home Improvements, we handle the documentation after your installation is complete. We provide itemized receipts and NFRC certifications and walk you through each application so you do not miss any steps. If you want to spread the upfront cost over time, we also offer financing options including 0% interest for up to 24 months.
Frequently Asked Questions (FAQs)
What is the Utah window replacement rebate?
The Utah window replacement rebate refers to cash-back programs from two Utah utility companies. Rocky Mountain Power’s Wattsmart program pays per window replaced, and Enbridge Gas’s ThermWise program pays per square foot of qualifying window area. Both programs require Energy Star-certified windows with a U-factor of 0.22 or lower and are available only for existing homes.
Does window replacement qualify for a tax credit in Utah?
No. As of 2026, there is no active federal or Utah state tax credit for residential window replacement, as the program expired at the end of 2025. Your savings opportunity now comes entirely from the utility rebate programs described in this article. Consult a tax professional for guidance on your specific situation.
What U-factor do my windows need to qualify?
Both the Wattsmart and ThermWise programs require a U-factor of 0.22 or lower. U-factor measures how much heat passes through the window; a lower number means better insulation. Most triple-pane windows from quality manufacturers, including all Energy Home Improvements windows, meet this requirement as a standard spec. You can confirm a window’s U-factor by checking its NFRC certification label.
Can I stack the Wattsmart and ThermWise rebates?
Yes, if your home uses both Rocky Mountain Power for electricity and Enbridge Gas for natural gas. The two programs are run by different utility companies and do not conflict with each other. Homes with electric cooling and gas heat are a common scenario where both rebates apply. Contact each utility to confirm your eligibility before your project begins.
What documentation do I need to apply?
You will need an itemized receipt from your installer showing the installation date and window costs, NFRC certifications or labels confirming your windows’ U-factor, and your utility account number. Energy Home Improvements provides all of this documentation after your installation is complete.
How long does it take to receive the rebate?
Rocky Mountain Power issues Wattsmart rebates within 14 business days of approving your application. You must apply within 180 days of your installation date. If you miss this deadline, you forfeit the rebate. Enbridge ThermWise timelines vary but typically process within a few weeks of receiving a complete application.
Does new construction qualify?
No. Both the Wattsmart and ThermWise programs are available only for existing homes, including single-family and manufactured homes. If you are building a new home or adding an addition, neither rebate program applies to those windows. Check directly with your utility provider to ask whether any incentives exist for new construction.
Does replacing windows pay off even without the tax credit?
Yes, for most Utah homeowners with outdated or failing windows. The combination of utility rebates and long-term energy savings still makes replacement a strong investment. Drafty, single-pane, or failed-seal windows can contribute significantly to high heating and cooling bills. Getting an in-home assessment with a realistic savings estimate for your specific home is the most accurate way to evaluate whether the timing is right.
Ready to upgrade your Utah home with qualifying triple-pane windows? Contact Energy Home Improvements to find out which rebate programs apply to your situation and how much you could save. Schedule your free consultation or call us directly at (801)-894-9188.
