Enbridge Gas Idaho customers, Idaho · Rebate
ThermWise Weatherization Rebates (Enbridge Gas Idaho)
Run by Enbridge Gas (ThermWise)
Enbridge Gas customers in Idaho (Franklin County area) with gas heat get ThermWise rebates for new windows ($2.50/sq. ft), attic, wall and floor insulation, duct sealing, air sealing (up to $850) and exterior rigid insulation in existing homes.
Amounts
How much you get
Rebates are paid per square foot or linear foot of work, with caps on some measures. The amount depends on which of these fits your install.
| What you install | You get |
|---|---|
| U-value 0.22 or lower (per sq. ft)Windows | $2.5 |
| R-11 or higher increments (per sq. ft)Wall insulation | $0.3 |
| R-19 or higher increments (per sq. ft)Floor insulation | $0.2 |
| At least R-19 added to reach R-49 to R-60 (per sq. ft)Attic insulation Tier 1 | $0.32 |
| At least R-11 added to reach R-49 to R-60 (per sq. ft)Attic insulation Tier 2 | $0.08 |
| Single-family ($100 plus $5.25 per linear foot)Duct sealing and insulation | N/A |
| Single-family ($200 per job plus $0.10 per sq. ft of conditioned floor area)Air sealing | N/A |
| Single-family (per sq. ft)Continuous exterior rigid insulation | $0.4 |
Eligibility
Do I qualify?
You need to meet all 6 of these.
Enbridge Gas customer in the Utah/Idaho service area with an active meter, in an existing home heated with natural gas.
Existing homes only. Homes built within the last 3 years (2023-2026) count as new construction and aren't eligible.
Insulation, air sealing and duct work must be installed by a ThermWise authorized contractor, except that attic, wall and floor insulation may be self-installed. Windows and exterior rigid insulation don't need an authorized contractor.
What to doHire a contractor from the ThermWise authorized contractors list, or install attic, wall or floor insulation yourself. Get a quote from a contractor
Air sealing done outside the Direct-Install program must first be recommended by a ThermWise Home Energy Plan or a Low-Income Efficiency Program audit, and is available once per home.
What to doGet an in-home ThermWise Home Energy Plan (which includes a blower door test) before air sealing.
Multifamily buildings (four or more attached units) need a pre-qualification inspection.
What to doCall 801-324-5118 or email Multifamily@ThermWise.com to schedule the inspection before work starts. ThermWise Weatherization Rebates
The attic insulation rebate is available one time per measure, per household.
Equipment
What equipment counts
The program sets these minimums for windows and doors and insulation and air sealing.
- Windows
U-value of 0.22 or lower, NFRC rated; site-built windows or glass only don't qualify.
- Insulation
Attic: final R-value between R-49 and R-60 (Tier 1 adds at least R-19, Tier 2 at least R-11).
Applying
How to apply
Within 6 months of the installation date (postmarked).
- Consider a Home Energy Plan first.
A ThermWise Home Energy Plan shows which upgrades fit your home, and an in-home plan is required before an air sealing rebate.
- For a multifamily building, schedule the pre-qualification inspection.
- Have the work done by a ThermWise authorized contractor, or self-install attic, wall or floor insulation.
- Apply online, by email or by mail within 6 months of installation.
Online through the ThermWise site, by email to Incentives@thermwise.net, or by mail to ATTN: ThermWise Rebates, 2223 S. Highland Dr. #E6-333, Salt Lake City, UT 84106.
- Receive the rebate check.
A copy of your most recent Enbridge Gas bill
Itemized receipt or invoice showing the contractor, install date, square footage, R-value, price and proof of payment
Property Owner Addendum, if the owner isn't the account holder
Forms and instructions, including for applying by mail2026 ThermWise Weatherization Rebates (Utah/Idaho), Residential Attic Insulation (Single Family) Application · ThermWise Energy Efficiency Programs - Utah (Utah Equipment Specs, revised 3/12/2025) · ThermWise Appliance Rebates
Questions about applying1-877-932-0610 or Incentives@ThermWise.net
Stacking
Use it with
Your address
Next steps
Check that it covers your address. Then, if you want, ask for a contractor quote.
Is it available at your address?
Before anything else
Your quote request is in If a contractor we work with serves your ZIP, they can contact you. We take one request per person; contact us to change it.
Get an email if this program changes
We'll write if its amount, status or deadline changes. Nothing else.
FAQ
Questions
How much does ThermWise Weatherization Rebates (Enbridge Gas Idaho) pay?
$0.08 to $2.5, depending on what you install. The table under How much you get lists each amount.
Do I need to be a Enbridge Gas Idaho customer?
Yes. It’s only for homes in Enbridge Gas Idaho customers, Idaho. See Do I qualify for the details.
Do I have to use a contractor?
Yes. Insulation, air sealing and duct work must be installed by a ThermWise authorized contractor, except that attic, wall and floor insulation may be self-installed.
Do I need approval before I buy?
Air sealing done outside the Direct-Install program must first be recommended by a ThermWise Home Energy Plan or a Low-Income Efficiency Program audit, and is available once per home. Get an in-home ThermWise Home Energy Plan (which includes a blower door test) before air sealing. Multifamily buildings (four or more attached units) need a pre-qualification inspection. Call 801-324-5118 or email Multifamily@ThermWise.com to schedule the inspection before work starts.
What’s the deadline?
Deadline: N/A
Is it still available?
Yes. It was open when we last checked, on October 27, 2026.
Can I install the insulation myself?
Yes, for attic, wall and floor insulation. Duct sealing, duct insulation and air sealing must be done by a ThermWise authorized contractor.
Do sliding glass doors count as windows?
Yes. Sliding glass patio doors qualify with windows, but storm doors and other doors with windows don't.
Can I get the attic insulation rebate twice?
No. The attic insulation rebate is available one time per measure, per household.
Plain words
Words used on this page
References
Sources
This page is built from these official pages, run by the program itself.
- ThermWise Weatherization Rebates
- 2026 ThermWise Weatherization Rebates (Utah/Idaho), Residential Attic Insulation (Single Family) Application
- ThermWise Energy Efficiency Programs - Utah (Utah Equipment Specs, revised 3/12/2025)
- ThermWise Appliance Rebates
When one of these pages changes, we re-check this page against it.
Nearby
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Energy Efficiency Upgrade Deduction (Idaho income tax)
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Weatherization Assistance Program (Idaho)
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