Full System Replacement in Buffalo Grove, Illinois
Full System Replacement in Buffalo Grove typically costs $9,000-$18,000 installed in 2026, depending on home size and efficiency tier.
Because Buffalo Grove grew in planned phases, whole neighborhoods run a furnace and AC of the same vintage on the same ductwork, reaching the end together. Replacing both as one matched system is the dominant project here - a coil sized for both units, one installation, and the strongest 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 Buffalo Grove homes
When both units in a Buffalo Grove 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 tightened-up homes often lands on slightly smaller, better-balanced equipment than the original - the remedy for short-cycling and clammy summers.
The whole project 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 Buffalo Grove 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 Buffalo Grove homes need replacement planning
Buffalo Grove is a large, planned suburb of 1970s-and-later homes on original or second-generation forced-air systems. Furnace-and-AC full-system replacements dominate, with growing interest in heat pumps for the utility rebates.
Talk it through - (847) 752-4418Neighborhoods we cover in Buffalo Grove
Our process
- 1Free in-home estimate
A comfort specialist comes to your Buffalo Grove 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 Buffalo Grove
How much does full system replacement cost in Buffalo Grove?
Full System Replacement in Buffalo Grove 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 Buffalo Grove project - and factor in the utility rebates you qualify for.
Do you serve all of Buffalo Grove?
Yes. We cover every neighborhood in Buffalo Grove, including Old Farm Village, Strathmore, Highland Grove, Cambridge and surrounding areas.
Are you available 24/7 for emergencies in Buffalo Grove?
Yes. We run a 24/7 line across Buffalo Grove for no-heat and no-cool emergencies and can prioritize dispatch.
What kinds of systems do you commonly replace in Buffalo Grove?
In Buffalo Grove we regularly work with 1970s-90s forced-air furnaces, Central AC, Builder-grade split systems, High-efficiency furnaces, 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 Buffalo Grove? Explore those pages, or call (847) 752-4418 for a free estimate today.