Boiler Replacement Cost in Illinois
Boiler replacement in Illinois costs $6,600 to $14,900 in 2026, though city-to-city prices vary quite a bit. Heating drives most HVAC spending in Illinois: its larger communities average 6,042 heating and 936 cooling degree days a year.
Boiler Replacement Prices in Illinois Cities
| City | Estimate | Heating / cooling degree days |
|---|---|---|
| Chicago | $6,400 to $14,500 | 6,017 / 861 |
| Aurora | $6,600 to $15,000 | 6,255 / 910 |
| Naperville | $8,600 to $19,500 | 5,975 / 938 |
| Joliet | $6,500 to $14,700 | 6,171 / 872 |
| Rockford | $5,400 to $12,300 | 6,496 / 838 |
| Elgin | $6,600 to $15,000 | 6,591 / 807 |
| Springfield | $5,500 to $12,600 | 5,455 / 1,094 |
| Peoria | $5,400 to $12,300 | 5,613 / 1,157 |
| Champaign | $5,600 to $12,600 | 5,656 / 1,072 |
| Waukegan | $6,000 to $13,700 | 6,702 / 683 |
| Cicero | $5,900 to $13,500 | 5,752 / 1,111 |
| Bloomington | $6,000 to $13,700 | 6,022 / 977 |
| Schaumburg | $6,900 to $15,700 | 6,462 / 879 |
| Evanston | $7,400 to $16,900 | 6,365 / 805 |
| Arlington Heights | $7,600 to $17,300 | 6,085 / 933 |
| Bolingbrook | $7,000 to $15,900 | 6,062 / 947 |
| Decatur | $5,200 to $11,800 | 5,443 / 1,115 |
| Palatine | $7,200 to $16,300 | 6,816 / 652 |
| Skokie | $7,000 to $16,000 | 6,365 / 805 |
| Des Plaines | $6,800 to $15,400 | 5,974 / 1,003 |
| Orland Park | $7,000 to $15,900 | 6,040 / 1,119 |
| Oak Lawn | $6,300 to $14,300 | 5,698 / 1,161 |
| Mount Prospect | $7,200 to $16,400 | 6,085 / 933 |
| Berwyn | $6,200 to $14,100 | 5,752 / 1,111 |
| Tinley Park | $7,000 to $15,900 | 6,349 / 858 |
| Wheaton | $7,700 to $17,600 | 5,975 / 938 |
| Normal | $5,800 to $13,300 | 6,022 / 977 |
| Oak Park | $7,400 to $16,900 | 5,752 / 1,111 |
| Hoffman Estates | $7,300 to $16,700 | 6,462 / 879 |
| Downers Grove | $7,700 to $17,500 | 5,975 / 938 |
From 2020 through 2025, NOAA recorded 746 winter storm and ice events, 783 heat events, 440 extreme cold events and 1,773 hail reports in Illinois. Those are the days when emergency HVAC calls pile up.
When Replacement Makes Sense
- The boiler is 20 to 30 years old or more
- Leaks, rust, or pressure that keeps dropping
- Some radiators stay cold
- Fuel bills keep going up
- The pilot or ignition keeps failing
What Moves the Price
- Condensing or non-condensing boiler
- A combi boiler that also makes your hot water
- Fuel type: gas, oil or propane
- A new chimney liner or venting
- Pumps, zone valves and the piping around the boiler
Common Questions
How long does a boiler last?
A cast-iron boiler can last 25 to 35 years. A modern condensing boiler usually lasts 15 to 20 with yearly service.
Can I replace a boiler with a heat pump?
Yes, with an air-to-water heat pump or a ductless system. The radiators may need upgrading, because heat pumps run cooler water than boilers.
Other HVAC Prices in Illinois
- Furnace Replacement in Illinois
- Furnace Repair in Illinois
- AC Installation in Illinois
- AC Repair in Illinois
- Heat Pump Installation in Illinois
- Heat Pump Repair in Illinois
- HVAC System Replacement in Illinois
- Ductless Mini-Split Installation in Illinois
- Emergency HVAC Repair in Illinois
- HVAC Tune-Up & Maintenance in Illinois
- Air Duct Cleaning in Illinois
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