Full System Replacement in Vernon Hills, Illinois
Full System Replacement in Vernon Hills typically costs $9,000-$18,000 installed in 2026, depending on home size and efficiency tier.
Across Vernon Hills, the original furnace and AC were installed together when the home was built, so they reach their first major replacement together. Pairing a new furnace and AC as one matched system is the reliable route to even comfort and lower bills - one coil sized for both, one installation, and the best position for stacked rebates.
| 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 Vernon Hills homes
When both units in a Vernon Hills home are near end of life, a matched replacement means a correctly sized coil, a pairing engineered to run as one system, and a single installation instead of two. We run a full load calculation, which in these insulated, planned-era homes regularly points to better-matched, right-sized equipment rather than a repeat of the builder's original tonnage.
The whole changeout is a single coordinated day. Licensed, insured installers set the furnace and condenser, match the coil, run venting and condensate to code, and verify the line set and electrical before confirming safe operation. They remove both old units and register the warranties, and we hand off the stacked Nicor and ComEd rebate paperwork the matched system qualifies for.
When Vernon Hills 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 Vernon Hills homes need replacement planning
Vernon Hills is largely 1980s-and-later planned development, so most homes are on forced-air furnaces and central AC now hitting their first major replacement. Matched full-system changeouts and efficiency upgrades are the typical projects.
Talk it through - (847) 752-4418Neighborhoods we cover in Vernon Hills
Our process
- 1Free in-home estimate
A comfort specialist comes to your Vernon Hills 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 Vernon Hills
How much does full system replacement cost in Vernon Hills?
Full System Replacement in Vernon Hills 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 Vernon Hills project - and factor in the utility rebates you qualify for.
Do you serve all of Vernon Hills?
Yes. We cover every neighborhood in Vernon Hills, including New Century Town, Grosse Pointe Village, Deerpath, Gregg's Landing and surrounding areas.
Are you available 24/7 for emergencies in Vernon Hills?
Yes. We run a 24/7 line across Vernon Hills for no-heat and no-cool emergencies and can prioritize dispatch.
What kinds of systems do you commonly replace in Vernon Hills?
In Vernon Hills we regularly work with 1980s-2000s forced-air furnaces, Central AC, Builder-grade split systems, High-efficiency systems, Heat pumps. 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 Vernon Hills? Explore those pages, or call (847) 752-4418 for a free estimate today.