Furnace Replacement in Libertyville, Illinois
Furnace Replacement in Libertyville typically costs $4,500-$9,000 installed in 2026, depending on home size and efficiency tier.
Libertyville splits cleanly for furnace work. West and south of downtown, the 1990s and 2000s subdivisions are hitting their first full replacement all at once - original furnaces and condensers of the same vintage, installed by the same builder, failing on roughly the same schedule.
| Smaller homes (under 1,500 sq ft) | $3,800-$7,900 |
| Typical homes (1,500-2,500 sq ft) | $4,500-$9,000 |
| Larger homes (2,500-4,000+ sq ft) | $5,000-$11,900 |
Final pricing depends on system size, efficiency, and home configuration. Every quote is written and itemized after a free in-home estimate, with available utility rebates factored in. See current North Shore rebates or get an instant ballpark estimate.
Furnace Replacement for Libertyville homes
Those subdivision furnaces were usually builder-grade 80% AFUE units sized off the plan set rather than the finished house, which is why so many of them run hot and short-cycle in homes that have since been tightened up. We run a load calculation on the house as it stands - finished basement, added bonus room, replacement windows and all - and in most Libertyville subdivision homes that points to a smaller, higher-efficiency furnace than the one coming out, which costs less to run and lasts longer because it is not fighting the house.
The other thing worth saying up front: if your furnace is original to a 1990s or 2000s Libertyville house, your condenser almost certainly is too. Replacing the furnace alone leaves you with an unmatched pair running below both units' ratings, so we will price the matched full-system option alongside the furnace-only quote and let you see the difference. Installers handle PVC venting and condensate, verify duct connections, remove the old unit and register the warranty, and we walk through the Nicor rebate your efficiency tier qualifies for.
When Libertyville homeowners call us for this
- System is 15+ years old or out of warranty
- A repair would cost a large share of a new unit
- Rising energy bills or uneven comfort
- Repeated breakdowns in a single season
- Phased-out refrigerant (older R-22 AC)
- Planning ahead before a full failure
Why Libertyville homes need replacement planning
Libertyville splits cleanly in two for heating work. The older streets around the downtown and Copeland Manor are pre-war and interwar houses, many still on hot-water or steam boilers with radiators, where the real question is whether to modernize the boiler or take on the much larger job of converting to forced air. West and south of there, the 1990s and 2000s subdivisions run original forced-air furnaces and condensers now hitting their first full replacement at once - matched changeouts where the AC is the same age as the furnace, and replacing one alone leaves an unmatched system running below both units and their published ratings.
Talk it through - (847) 752-4418Neighborhoods we cover in Libertyville
Our process
- 1Free in-home estimate
A comfort specialist comes to your Libertyville home, measures the space, checks ductwork and venting, and explains options and honest price ranges in writing - no charge, no pressure.
- 2Right-sized equipment
We size the system with a proper load calculation and choose efficiency levels that qualify for the utility rebates you're eligible for.
- 3Professional installation
Licensed, insured installers remove the old system and install the new one to spec.
- 4Rebates, registration & follow-up
We register the warranty, hand off the utility rebate paperwork, and confirm everything is running right.
Frequently asked - Furnace Replacement in Libertyville
How much does furnace replacement cost in Libertyville?
Furnace Replacement in Libertyville typically runs $4,500-$9,000 installed, depending on system size, efficiency, and how the home is configured. We provide a written, itemized estimate from a free in-home visit for every Libertyville project - and factor in the utility rebates you qualify for.
Do you serve all of Libertyville?
Yes. We cover every neighborhood in Libertyville, including Historic downtown, Copeland Manor, Rockland, Red Top and surrounding areas.
Are you available 24/7 for emergencies in Libertyville?
Yes. We run a 24/7 line across Libertyville for no-heat and no-cool emergencies and can prioritize dispatch.
What kinds of systems do you commonly replace in Libertyville?
In Libertyville we regularly work with Pre-war boilers and radiators, 1990s-2000s forced-air systems, Central AC, High-efficiency furnaces, Heat pumps. We match the approach to the home's age, ductwork, and venting.
Furnace Replacement guides
Looking for the full picture on Furnace Replacement or everything we do in Libertyville? Explore those pages, or call (847) 752-4418 for a free estimate today.