HVAC System Rebates in Illinois

6 active programs · Updated 2026

Last updated: April 21, 2026

6
Total Programs
3
Federal
1
State
2
Utility
Potential savings: $14,305+

Available Programs

Federal

Home Electrification and Efficiency Rebate (Heat Pump)

Up to $8,000 (income-tiered)

DOE (Department of Energy)

info Income-qualified
Apply Now → Stackable
Federal

HOMES Whole-House Energy Savings Rebate

50% of project cost up to $4,000 (moderate) or $8,000 (low-income)

DOE (Department of Energy)

info Income-qualified
Apply Now → Stackable
Federal

Commercial Buildings Energy Efficiency Deduction (179D)

Up to $5.00/sqft (base $0.50-$1.00/sqft without prevailing wage; $2.50-$5.00/sqft with prevailing wage + apprenticeship)

IRS (Internal Revenue Service)

Apply Now →
State

Illinois DCEO Energy Efficiency Program

Up to $5,000-$12,000 in no-cost improvements

Illinois DCEO (Department of Commerce and Economic Opportunity)

info Income-qualified
Apply Now → Stackable
Utility

ComEd Energy Efficiency Rebate - HVAC

$1,200-$3,500 based on system type and efficiency

Commonwealth Edison (ComEd)

Apply Now → Stackable
Utility

ComEd Smart Thermostat Rebate

$100 per thermostat

Commonwealth Edison (ComEd)

Apply Now → Stackable

Calculate Your Exact Savings

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Frequently Asked Questions

What hvac system rebates are available in Illinois? expand_more

There are currently 6 active rebate programs for HVAC system replacement or upgrade in Illinois, including 3 federal programs, 1 state programs, and 2 utility programs. Total potential savings are $14,305+.

How much can I save on HVAC system replacement or upgrade in Illinois? expand_more

Total potential savings for HVAC system replacement or upgrade in Illinois is $14,305+. Actual savings depend on your specific project details, income level, and utility provider. Many programs can be stacked together for maximum savings.

Can I combine multiple rebates for HVAC system replacement or upgrade? expand_more

Yes, many rebate programs in Illinois can be stacked together. Federal tax credits can typically be combined with state rebates and utility incentives, significantly increasing your total savings. Look for programs marked as "Stackable" above.

Other Rebates in Illinois

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View the complete HVAC System rebates guide across all states →