HVAC Replacement in Mount Prospect, Illinois.
HVAC replacement in Mount Prospect 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.
Mount Prospect is an established northwest suburb of mid-century homes. Full-system furnace-and-AC replacements and aging-equipment upgrades are the core of local HVAC demand.
Replacement services in Mount Prospect
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 Mount Prospect
Mount Prospect's housing stock shapes the kind of work we do. We regularly service and replace Postwar forced-air furnaces, Original central AC, Builder-grade split systems, High-efficiency furnaces, 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 Mount Prospect homes plan replacements early
Mount Prospect is dense with postwar homes on original ductwork, so furnace-and-AC systems tend to age out together. Replacements are mostly matched full-system changeouts, with steady demand for efficiency upgrades.
Talk it through - (847) 752-4418Neighborhoods we serve in Mount Prospect
Local crews familiar with the area. Recent work across:
Around Mount Prospect
We work homes throughout Mount Prospect, including areas near Downtown Mount Prospect, Randhurst Village, Lions Memorial Park, Mount Prospect Metra station. 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 Mount Prospect (2026)
| Furnace Replacement | $4,500-$9,000 |
| AC Replacement | $4,000-$8,000 |
| Full System Replacement | $9,000-$18,000 |
| Boiler Replacement | $7,000-$15,000 |
| Heat Pump Installation | $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 Mount Prospect
High-efficiency systems installed in Mount Prospect 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 - Mount Prospect
Do you serve all of Mount Prospect?
Yes. We cover every neighborhood in Mount Prospect, including Old Town, Prospect Meadows, Colonial Heights, Lions Park and surrounding areas.
What does a new system cost in Mount Prospect?
Most Mount Prospect 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 Mount Prospect?
Yes. We run a 24/7 line for no-heat and no-cool emergencies in Mount Prospect 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.