Furnace Replacement & Installation in Chicago, IL
- What's included: old-unit removal, new furnace set and connected, gas and venting checks, thermostat hookup, and a startup test.
- How fast: most single-furnace swaps finish in one day; complex venting or ductwork changes can extend to two.
- What it costs: most Chicago furnace installs land in the roughly $3,500–$7,500 range depending on size and efficiency; exact price confirmed on-site.
- What we take: cash, check, and major cards; the minimum service charge is $150.
- How to book: call (773) 690-6234 to schedule a free on-site assessment and written quote.
Furnace replacement makes sense when a Chicago furnace is past 15–20 years, needs a costly heat-exchanger or control-board repair, or short-cycles and struggles to hold temperature during a cold snap. If your unit is under a decade old and the fault is a single inexpensive part, a repair is usually the better value; we'll say so plainly rather than push a new system. The trade-off is real: replacement carries higher upfront cost but lower monthly bills and fewer emergency calls, while repair defers spending but keeps you tied to an unit that will eventually fail on the coldest night.
Chicago's older housing stock shapes every install. In Logan Square and Wicker Park, tall pre-war two-flats often route furnaces through tight basement corners with limited vent clearance, so venting sizing gets verified before anything is ordered. Bungalows in Portage Park and Beverly frequently run on octopus or older gravity ductwork that needs static-pressure checks so a new high-efficiency furnace isn't starved for airflow. Lincoln Park and Hyde Park brownstones and greystones can require sidewall PVC venting when a chimney flue is shared or lined for a water heater. Getting the sizing right matters more than raw output: an oversized furnace short-cycles, wears faster, and leaves rooms in Albany Park or Rogers Park unevenly heated.
Efficiency choice comes down to how you use the home. A standard 80% AFUE furnace costs less to install and suits smaller units or shorter-stay properties in Bridgeport and Pilsen. A 90%+ high-efficiency condensing furnace costs more upfront but cuts gas use through Chicago's long heating season, which pays back over years in a home you plan to keep. We size the unit to the space with a load calculation, not by copying the old nameplate, and we confirm gas supply and combustion-air requirements before install day.
Every replacement finishes with a startup test: gas pressure, safety controls, venting draft, and thermostat operation all verified before we leave. You get a clear written scope up front so there are no surprises, and the exact price is confirmed at the free on-site visit — the ballpark ranges here are honest estimates, not final numbers.
📞 Call (773) 690-6234Furnace Replacement & Installation pricing in Chicago
| Standard 80% AFUE furnace installed | $3,500–$5,000 |
| High-efficiency 90%+ condensing furnace installed | $5,000–$7,500 |
| Furnace swap with new venting or ductwork mods | $6,000–$8,500+ |
| Minimum service charge | $150 |
Exact price confirmed free on-site before any work.
Furnace Replacement & Installation — questions, answered
How much does furnace installation cost in Chicago?
Most furnace installations in Chicago fall in the roughly $3,500–$7,500 range, driven by furnace size, efficiency rating, and venting work. A standard 80% unit sits at the low end and a high-efficiency condensing furnace at the high end. The exact price is confirmed during a free on-site visit.
Should I repair or replace my furnace in Chicago?
Replace a Chicago furnace when it's 15–20 years old, needs an expensive heat-exchanger or control-board fix, or can't hold temperature in cold weather. Repair usually wins when the unit is under about 10 years old and the fault is a single low-cost part.
How long does furnace replacement take in a Chicago home?
Most single-furnace replacements in Chicago finish in one day. Jobs that require new sidewall venting, ductwork adjustments, or tight basement access in older Logan Square or Lincoln Park buildings can run into a second day.
What size furnace do I need for a Chicago house?
Furnace size in Chicago should come from a load calculation based on square footage, insulation, and window area — not from the old unit's nameplate. Oversized furnaces short-cycle and heat unevenly, which is common in Portage Park bungalows and Albany Park two-flats without a proper calculation.
Do I need special venting for a high-efficiency furnace in Chicago?
Yes. High-efficiency condensing furnaces in Chicago often require PVC sidewall venting and a condensate drain, especially in Hyde Park and Lincoln Park brownstones where the existing chimney flue is shared with a water heater. Venting is verified before the unit is ordered.