HVAC Replacement in Green Oaks, Illinois.
HVAC replacement in Green Oaks typically runs $4,500-$18,000 installed in 2026 - furnace-only changeouts start around $4,500-$9,000, while full furnace-plus-AC systems run $9,000-$18,000, before utility rebates.
Green Oaks is a wooded Lake County village of large homes on acreage, most running zoned multi-system heating and cooling. Staged multi-zone replacements and propane-to-heat-pump conversions are the typical projects.
Replacement services in Green Oaks
High-efficiency gas furnace replacement for North Shore and NW suburban homes.
Central air conditioner replacement sized right for comfort and efficiency.
Furnace and AC replaced together as one matched, high-efficiency system.
Hot-water and steam boiler replacement for older North Shore housing stock.
Cold-climate electric heat pumps that qualify for tiered utility rebates.
Ductless heating and cooling for additions, attics, and homes without ductwork.
On-demand tankless water heaters for endless hot water and less wasted space.
24/7 response when the heat or AC dies and can't wait for a scheduled visit.
Repairs and maintenance plans
Not ready to replace? Each service has its own page with what a visit covers and what it costs.
Systems common in Green Oaks
Green Oaks's housing stock shapes the kind of work we do. We regularly service and replace Large-home zoned forced-air systems, Multi-furnace setups, Propane furnaces, High-efficiency systems, Heat pumps across this area. Each calls for a different approach - boilers and steam systems differ from forced-air furnaces, and older homes often need careful venting and duct work.
Why Green Oaks homes plan replacements early
Green Oaks is large custom homes on wooded acreage west of the Des Plaines River, and the HVAC work follows the floor plans: two and sometimes three furnaces and condensers per house, zoned, installed at different times and now aging out on staggered schedules. Replacing one zone without looking at the others is how a homeowner ends up doing this three times in five years. Parts of the village sit off the natural-gas main and run propane, which changes both the equipment and the honest efficiency math, and makes a heat pump a genuinely competitive option here rather than a hard sell.
Talk it through - (847) 752-4418Neighborhoods we serve in Green Oaks
Local crews familiar with the area. Recent work across:
Around Green Oaks
We work homes throughout Green Oaks, including areas near Independence Grove Forest Preserve, Des Plaines River Trail, Route 137, Libertyville border. Whether it's a single-family home, a townhome, or an HOA-managed property, we bring the same local knowledge to every project.
Typical installed costs in Green Oaks (2026)
| Furnace Replacement in Green Oaks | $4,500-$9,000 |
| AC Replacement in Green Oaks | $4,000-$8,000 |
| Full System Replacement in Green Oaks | $9,000-$18,000 |
| Boiler Replacement | $7,000-$15,000 |
| Heat Pump Installation in Green Oaks | $10,000-$22,000 |
| Ductless Mini-Split Installation | $4,000-$14,000 |
| Tankless Water Heater Installation | $3,500-$6,500 |
| Emergency HVAC Replacement | $4,500-$18,000 |
Rebates in Green Oaks
High-efficiency systems installed in Green Oaks often qualify for Nicor Gas and ComEd rebates, and heat pumps can earn tiered ComEd rebates. We size and select equipment to hit rebate thresholds and hand off the paperwork you need to claim them.
Frequently asked - Green Oaks
Do you serve all of Green Oaks?
Yes. We cover every neighborhood in Green Oaks, including Green Oaks estates, Route 137 corridor, Libertyville border, Bradley Road area and surrounding areas.
What does a new system cost in Green Oaks?
Most Green Oaks replacements run $4,500-$18,000 depending on whether it's a furnace, AC, full system, or boiler, plus efficiency and home configuration. You get a written, itemized estimate from a free in-home visit - with ComEd and Nicor rebates factored in.
Are you available 24/7 for emergencies in Green Oaks?
Yes. We run a 24/7 line for no-heat and no-cool emergencies in Green Oaks and can prioritize an emergency replacement.
How much does a new furnace or AC cost on the North Shore?
Installed furnace replacements typically run $4,500-$9,000, central AC $5,000-$10,000, and a full furnace-plus-AC system $9,000-$18,000. Boilers (common in older North Shore homes) run $7,000-$15,000, and heat pumps $10,000-$22,000 before rebates. Final pricing depends on system size, efficiency, and how your home is configured. Every quote is written and itemized after an in-home estimate.
Should I repair or replace my system?
As a rule of thumb, if a system is 15+ years old, needs a repair that costs more than about a third of a new unit, or has failed more than once in a season, replacement usually saves money over time. We give an honest recommendation - if a repair makes more sense, we'll say so, and we'll do the repair.
Do you do repairs, or only replacements?
Both. We repair furnaces, air conditioners, and boilers, with a $99-$169 diagnostic that is credited toward the repair and a flat repair price you approve in writing before any work starts. Most repairs run $180-$950 depending on the equipment and the fault. Replacement is what we specialize in, but that does not mean we push it - a good system with a failed part gets the part.
Do you offer a maintenance plan or service agreement?
Yes. Plans run $199-$399 per year depending on tier and how many systems the home has, and cover two seasonal visits - heating in the fall, cooling in the spring - plus priority dispatch and a discounted repair rate for members. A one-off tune-up without a plan is $129-$199. Most manufacturer warranties require documented annual maintenance, so a plan also keeps that coverage intact.