Nicor Gas customers, Illinois · Rebate
Nicor Gas Energy Efficiency Rebates for Your Home
Run by Nicor Gas Energy Efficiency Program
Nicor Gas pays residential customers $25 to $3,000 for high-efficiency furnaces, boilers, water heaters and smart thermostats, and for air sealing, insulation, duct sealing and windows done by an approved contractor.
Amounts
How much you get
A fixed amount per measure, added up on one application. The amount depends on which of these fits your install.
| What you install | You get |
|---|---|
| Furnace 97% AFUE or higher with smart thermostat (same application) | $275 |
| Furnace 95% AFUE or higher with smart thermostat (same application) | $200 |
| Furnace 97% AFUE or higher | $225 |
| Furnace 95% AFUE or higher | $150 |
| Smart thermostat (one per household) | $25 |
| Boiler 95% AFUE or higher | $350 |
| Combination boiler (space heating plus domestic hot water) | $500 |
| UEF 0.95 or higherTankless water heater | $150 |
| UEF 0.86 or higherPower-vented or condensing storage water heater | $150 |
| Per sq. ft.Indoor pool cover | $1.25 |
| Per sq. ft.Outdoor pool cover | $0.75 |
| At least 200 CFM reduction)Air sealing (approved contractor | $500 |
| Attic insulation (after air sealing; R20 or less to R49 or more) | $400 |
| Exterior wall insulation (after air sealing) | $150 |
| Foundation sidewall insulation (after air sealing) | $200 |
| Duct sealing (approved contractor) | $600 |
| Per window (up to 10)Low-e storm window insert | $100 |
| Per windowHigh performance window replacing single pane | $125 |
| Per windowHigh performance window replacing double pane | $100 |
Eligibility
Do I qualify?
You need to meet all 6 of these.
Active residential Nicor Gas customer. Landlords can apply for a tenant's account, and tenants can apply with the landlord's signature.
A single-family home or a building with two units or less, used as the occupants' primary residence.
Owners, landlords and tenants can take part; a tenant needs the owner's permission and the landlord's signature on the invoice.
All products must be installed by a professional contractor unless noted. Air sealing, insulation, duct sealing and window work must be done by a program approved contractor.
What to doPick a contractor with the Nicor Gas Find a Contractor tool (choose the measure in the Equipment/Improvement list). Get a quote from a contractor
Weatherization measures need natural gas space heating. Attic and wall insulation are only eligible after air sealing is done.
Equipment must be installed between January 1, 2026 and December 31, 2026, and the application filed within 90 days of installation or by January 31, 2027, whichever comes first.
Equipment
What equipment counts
The program sets these minimums for furnaces, ac and thermostats, water heaters, insulation and air sealing and windows and doors.
- Furnaces
Annual Fuel Utilization Efficiency (AFUE) of 95% or above ($150) or 97% or above ($225).
- Boilers
95% AFUE or above, residential-sized with input capacity under 300 MBTUH.
- Boilers
Combination boiler: 95% AFUE minimum, sealed combustion, modulating firing rate, with programmed outdoor reset control.
- Water heaters
Tankless: residential gas, 75 MBTUH or less, UEF 0.95 or higher, ENERGY STAR, whole-home unit.
- Water heaters
Storage: power-vented or condensing, UEF 0.86 or higher, ENERGY STAR.
- Thermostats
ENERGY STAR certified (or approved by the Nicor Gas Energy Efficiency team), Wi-Fi connected with geo-fencing, on residential-sized gas space heating.
- Insulation
Attic: existing R20 or less, final R49 or greater; walls: existing R5 or less.
- Windows
ENERGY STAR certified for the climate zone; storm inserts meet ENERGY STAR storm window criteria (emissivity 0.22 or less).
Applying
How to apply
Within 90 days of installation or by January 31, 2027, whichever comes first.
- Check the measure's requirements.
Read the measure's qualifications on the rebates page and confirm the product is on the qualifying products list.
- Hire a contractor.
Use a professional contractor. For air sealing, insulation, duct sealing and windows, choose a program approved contractor with the Find a Contractor tool. A Contractor Circle member can take the rebate off your invoice as an instant discount.
- Install between January 1 and December 31, 2026.
Get an invoice with the contractor's name and contact information, installation date, manufacturer and model, total cost and proof of payment. Weatherization jobs also need before and after photos.
- Apply within 90 days.
Apply online, or mail a paper application with the invoice to Nicor Gas Attn: Energy Efficiency 26-59061, P.O. Box 540071, El Paso, TX 88554-0071, within 90 days of installation or by January 31, 2027, whichever comes first. Furnace and smart thermostat bundles must be on the same application.
- Receive your rebate.
A check arrives in about six to eight weeks after a complete application.
Contractor installation invoice or purchase receipt
Before and after photos (air sealing, insulation, duct sealing, windows)
Forms and instructions, including for applying by mailEnergy Efficiency Rebates for Your Home - Nicor Gas · Rebates FAQs - Nicor Gas · 2026 Nicor Gas Energy Efficiency Trade Ally Launch Presentation · Residential Savings - Nicor Gas
Questions about applying877.886.4239 or eeinfo@nicorgas.com
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 Nicor Gas Energy Efficiency Rebates for Your Home pay?
$0.75 to $600, depending on what you install. The table under How much you get lists each amount.
Do I need to be a Nicor Gas customer?
Yes. It’s only for homes in Nicor Gas customers, Illinois. See Do I qualify for the details.
Do renters qualify?
Owners, landlords and tenants can take part; a tenant needs the owner's permission and the landlord's signature on the invoice.
Do I have to use a contractor?
Yes. All products must be installed by a professional contractor unless noted.
What’s the deadline?
Apply after it’s installed: within 3 months of purchase or by Jan 31, 2027, whichever comes first.
Is it still available?
Yes. It was open when we last checked, on October 27, 2026.
Can a renter get a Nicor Gas rebate?
Yes, if the gas account is in your name. The landlord or property manager must sign the invoice and the application, which releases the rebate payment to them.
Can my contractor take the rebate off my bill up front?
Yes, if the contractor is enrolled in Contractor Circle. They deduct it as an instant discount, you sign the invoice, and Nicor Gas pays the contractor.
Will someone inspect my installation?
Possibly. Nicor Gas verifies a sample of participants on site, and signing the application allows that visit.
Can I get the Nicor Gas thermostat rebate if ComEd already gave me one?
Yes, if all other requirements are met. You can't get a second Nicor Gas thermostat rebate, though, including one received through an assessment.
Does a new home or addition qualify?
Partly. New construction and new additions may qualify for a furnace or boiler rebate.
Plain words
Words used on this page
- UEF
- A water heater’s efficiency rating. Higher is better.
References
Sources
This page is built from these official pages, run by the program itself.
- Energy Efficiency Rebates for Your Home - Nicor Gas
- Rebates FAQs - Nicor Gas
- 2026 Nicor Gas Energy Efficiency Trade Ally Launch Presentation
- Residential Savings - Nicor Gas
When one of these pages changes, we re-check this page against it.
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