Full System Replacement in Northbrook, Illinois
Full System Replacement in Northbrook typically costs $9,000-$18,000 installed in 2026, depending on home size and efficiency tier.
Full-system replacement is bread-and-butter work in Northbrook, where 1960s-through-80s homes run forced-air furnaces and central air that reach the end together. Replacing both as one matched high-efficiency system is the highest-value HVAC decision most Northbrook homeowners will make - and the best position for stacked utility 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 Northbrook homes
In a Northbrook home, a furnace and AC of the same vintage on the same ductwork are ideal candidates for a matched replacement: one correctly sized coil, one engineered pairing, one installation. We run a load calculation on the actual house, and because these homes were often built with equipment slightly oversized, the right matched system is frequently a step smaller - which cures the short-cycling and clammy summers that oversized gear causes.
Northbrook is also prime territory for a dual-fuel matched system, pairing a high-efficiency furnace with a heat pump so the home leans electric in mild weather and gas in deep cold, adding ComEd's heat-pump rebate on top of Nicor's furnace rebate. However you configure it, the install crew completes the matched changeout in one visit, removes both old units, registers the warranties, and organizes the rebate paperwork, with current amounts confirmed in your estimate.
When Northbrook 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 Northbrook homes need replacement planning
Northbrook is largely mid-century and later construction, so most homes run forced-air furnaces and central AC that are now on their second system and reaching replacement age together. Full-system changeouts and efficiency upgrades - including heat pumps for the rebates - are the bread and butter here.
Talk it through - (847) 752-4418Neighborhoods we cover in Northbrook
Our process
- 1Free in-home estimate
A comfort specialist comes to your Northbrook 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 Northbrook
How much does full system replacement cost in Northbrook?
Full System Replacement in Northbrook 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 Northbrook project - and factor in the utility rebates you qualify for.
Do you serve all of Northbrook?
Yes. We cover every neighborhood in Northbrook, including Sunset Ridge, Mission Hills, Northbrook Estates, Meadowhill and surrounding areas.
Are you available 24/7 for emergencies in Northbrook?
Yes. We run a 24/7 line across Northbrook for no-heat and no-cool emergencies and can prioritize dispatch.
What kinds of systems do you commonly replace in Northbrook?
In Northbrook we regularly work with 1960s-80s forced-air furnaces, Original 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 Northbrook? Explore those pages, or call (847) 752-4418 for a free estimate today.