Full System Replacement in Winnetka, Illinois
Full System Replacement in Winnetka typically costs $9,000-$18,000 installed in 2026, depending on home size and efficiency tier.
For Winnetka's forced-air homes, replacing the furnace and AC together is often the cleanest path through a complicated cooling history. These large houses were frequently retrofitted for central air after the fact, and matching a new furnace, coil, and condenser as one system finally resolves the mismatches those piecemeal upgrades left behind.
| Smaller homes (under 1,500 sq ft) | $7,700-$15,800 |
| Typical homes (1,500-2,500 sq ft) | $9,000-$18,000 |
| Larger homes (2,500-4,000+ sq ft) | $10,100-$23,800 |
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.
Full System Replacement for Winnetka homes
In a Winnetka home, a full-system replacement is a chance to correct decades of incremental fixes: an oversized furnace here, a mismatched coil there, refrigerant lines sized for equipment that's long gone. We measure the home as it performs today - additions, window upgrades, finished lower levels and all - and engineer the furnace and AC together so the whole house heats and cools evenly. In a high-value home, that engineering discipline is what protects the investment.
Done as one project, the install is a single, coordinated visit rather than two disruptions to a finished home. The installers protect the space, set both units, match the coil, route venting and condensate discreetly, and verify the electrical. A matched high-efficiency system is also the best case for stacking Nicor and ComEd rebates, especially when a heat pump is part of the plan - and we handle the documentation so the incentives come through, with current amounts confirmed in your estimate.
When Winnetka 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 Winnetka homes need replacement planning
Winnetka's housing stock is among the oldest and most valuable on the North Shore, and much of it still runs on boilers and heating systems converted from their original coal or oil setups. Replacements here reward experience with historic homes: correct boiler sizing, careful venting in finished basements, and high-velocity or ductless options where there's no room for conventional ducts.
Talk it through - (847) 752-4418Neighborhoods we cover in Winnetka
Our process
- 1Free in-home estimate
A comfort specialist comes to your Winnetka 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 - Full System Replacement in Winnetka
How much does full system replacement cost in Winnetka?
Full System Replacement in Winnetka typically runs $9,000-$18,000 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 Winnetka project - and factor in the utility rebates you qualify for.
Do you serve all of Winnetka?
Yes. We cover every neighborhood in Winnetka, including East Winnetka, West Winnetka, Hubbard Woods, Indian Hill and surrounding areas.
Are you available 24/7 for emergencies in Winnetka?
Yes. We run a 24/7 line across Winnetka for no-heat and no-cool emergencies and can prioritize dispatch.
What kinds of systems do you commonly replace in Winnetka?
In Winnetka we regularly work with Hot-water and steam boilers, Converted gravity systems, Retrofit central AC, High-velocity AC in historic homes, Aging 80% AFUE furnaces. We match the approach to the home's age, ductwork, and venting.
Full System Replacement guides
Looking for the full picture on Full System Replacement or everything we do in Winnetka? Explore those pages, or call (847) 752-4418 for a free estimate today.