Furnace Repair in Chicago, IL

Chicago winters are relentless. A furnace failure is never just an inconvenience — it's a safety concern. Chicago Service HVAC provides 24/7 emergency furnace repair throughout Chicagoland, with NATE-certified technicians who diagnose and fix all furnace types quickly and correctly.

Call (773) 231-8486

Furnace Problems We Diagnose & Fix

  • No heat or insufficient heating
  • Furnace won't ignite or short-cycles
  • Cracked heat exchanger (dangerous — call immediately)
  • Faulty igniter, flame sensor, or pilot light
  • Blower motor failures and belt issues
  • Gas valve, draft inducer, and pressure switch faults
  • Control board and thermostat communication failures
  • Carbon monoxide concerns and safety shutoffs
  • Unusual smells — burning, gas, or musty odors
Safety First

If you smell gas or suspect a carbon monoxide leak, evacuate immediately and call 911. Then call us. Do not attempt to diagnose gas issues yourself.

All Furnace Types Serviced

Gas furnaces (80% and 97% AFUE), electric furnaces, oil furnaces, and dual-fuel systems. We service all major brands including Carrier, Trane, Lennox, Rheem, Goodman, Bryant, and more.

Frequently Asked Questions

How fast can you respond to a heating emergency?
Our emergency team targets a 60-minute response time across Chicagoland, 24/7 including weekends and holidays.
Is my furnace safe to run if it's making strange noises?
Banging, screeching or rumbling sounds can indicate serious problems. We recommend shutting the unit off and calling us before running it further to avoid damage or safety hazards.
How do I know if I need a repair or a replacement?
If your furnace is over 15 years old and repair costs exceed 50% of replacement cost, replacement is usually more economical. Our technicians give honest, unbiased recommendations.

Need Furnace Repair?

NATE-certified technicians ready now. Same-day appointments available.

Tap to Call: (773) 231-8486