HVAC replacement cost in Illinois
As a reference, a central AC + furnace replacement in an 1,800 sq ft home in Illinois runs $8,900 to $16,800 installed, about 5% above the national average. Enter your ZIP for a range scoped to your project.
Typical low
$8,900
Typical high
$16,800
vs national avg
+5%
Illinois tracks close to national average pricing for home-improvement work. That makes national cost guides a reasonable starting point, but your specific scope, material choices, and the contractor you pick still swing the final number far more than geography does. Comparing several local quotes remains the most reliable way to find the fair price.
HVAC replacement cost by system in Illinois
| System | Installed cost |
|---|---|
| Central AC + furnace | $8,900 – $16,800 |
| Heat pump | $8,400 – $17,900 |
| Central AC only | $5,800 – $12,100 |
| Ductless mini-split | $3,700 – $10,500 |
| Furnace only | $4,200 – $10,000 |
| New ductwork (if needed) | $3,200 – $7,400 |
QuotesOn regional dataset with the Illinois cost factor applied, for a typical 1,500–2,500 sq ft home.
Illinois hvac questions
How much does hvac cost in Illinois?
As a reference point, a central AC + furnace replacement in an 1,800 sq ft home in Illinois currently runs $8,900 to $16,800 installed. Pricing in Illinois is about 5% above the national average. Your number depends on your exact scope, so the instant estimate asks a few questions first.
Is hvac work more expensive in Illinois than elsewhere?
Installed prices in Illinois are about 5% above the national average, driven mostly by local labor rates and permitting. QuotesOn applies a Illinois-specific cost factor so the range you see reflects local pricing, not a national guess.
How do I get exact hvac quotes in Illinois?
Start with your ZIP code above. You'll see an instant range for your scope in about a minute, then licensed Illinois pros provide firm quotes. Free, with no obligation.
Can I finance an HVAC replacement in Illinois?
Yes. Most licensed Illinois contractors offer financing through lending partners, typically 12-month same-as-cash promotions or 5–15 year home-improvement loans. Home equity products usually carry the lowest rates if you have equity available. Our funnel asks how you plan to pay so matched pros come prepared with the right options.
How long does an HVAC replacement take in Illinois?
Plan on 1–3 days, including haul-away of the old equipment. Illinois permitting and inspection schedules can add time, which your contractor builds into the quote. Weather windows matter for exterior work, so booking ahead of the busy season usually means faster scheduling.
Price your Illinois project
Scoped to your project, priced with Illinois labor costs.