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Full HVAC system (AC + furnace or air handler) cost in Illinois
What drives full HVAC system replacement prices in Illinois, from cited public sources, plus the quotes homeowners there have posted publicly.
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Add my quoteWhat affects full HVAC system replacement prices in Illinois
- Home heating. Almost three-quarters of Illinois households heat with natural gas; about 1 in 5 rely on electricity and about 5 in 100 use propane or other petroleum products. Source: U.S. EIA, Illinois State Profile and Energy Estimates (updated October 16, 2025), checked Oct 17, 2026.
- Cooling. About 96% of Illinois households use electric air conditioning. Source: U.S. EIA, Illinois State Profile and Energy Estimates (updated October 16, 2025), checked Oct 17, 2026.
- Labor. HVAC mechanics and installers in Illinois earned a mean $37.29 an hour (median $37.21) in May 2025, compared with $31.14 (median $29.33) nationally. Labor is a big part of an installed price, but these are technician wages, not what contractors bill. Source: U.S. BLS, Occupational Employment and Wage Statistics, May 2025 (49-9021), checked Oct 17, 2026.
- Rebates. Illinois's federal HEAR rebate program is not open: Illinois EPA says DOE has not yet processed its application, and the HOMES pilot is pending DOE approval. Illinois does not intend to offer retroactive rebates. Source: Illinois EPA, Energy Rebates, checked Oct 17, 2026.
Rebates and programs change often. Confirm with the program before you sign. These facts are context only; they are not price estimates, and we never fill in estimates.
Publicly posted quotes (not verified)
Prices homeowners posted publicly on forums like Reddit and DIY Chatroom for Illinois: 1 post. We haven't verified them and they are not counted in our ranges, medians or quote grades. Some are before rebates. Rows marked "same home" are options from one homeowner's quotes and count as one post.
| Posted | Where | What | Size | Type | Price | Source |
|---|---|---|---|---|---|---|
| 2024-04-16 | central Illinois, IL | dual fuel: heat pump + propane furnace + coil + thermostat Trane XR16 (SEER2 16, two stage) heat pump; Trane S9X2 96% 100,000 BTU two-stage furnace; coil 4TXC-DS; XL824 thermostat | 4t | quote Public post after $2,000 'spring discount', before tax credit | $14,450 | reddit r/hvacadvice "Total price was 16,450 but they have a "spring discount" of 2,000" |
Illinois full HVAC system replacement FAQ
How do most homes in Illinois heat?
Almost three-quarters of Illinois households heat with natural gas; about 1 in 5 rely on electricity and about 5 in 100 use propane or other petroleum products. That mix shapes what contractors usually quote, for example a heat pump versus an AC with a gas furnace.
How much do Illinois homes rely on air conditioning?
About 96% of Illinois households use electric air conditioning.
Is HVAC labor more expensive in Illinois?
Technician pay is one signal. HVAC mechanics and installers in Illinois earned a mean $37.29 an hour in May 2025, versus $31.14 nationally (BLS). Contractor prices also include overhead, permits and profit, so compare full quotes, not wages.
Are there heat pump rebates in Illinois right now?
Illinois's federal HEAR rebate program is not open: Illinois EPA says DOE has not yet processed its application, and the HOMES pilot is pending DOE approval. Illinois does not intend to offer retroactive rebates. Check the program's page before you sign, because availability changes.