Cook County, Illinois
HVAC repair and installation in Chicago, IL
Chicago HVAC work is shaped by brutal winters, humid summers and a huge stock of older homes. Bungalows, two-flats and greystones often heat with boilers and radiators or older furnaces, and adding AC usually means working around plaster walls.
Areas served include
Portage Park · Logan Square · Beverly · Edgewater · Bridgeport · Jefferson Park
Same-day appointments when a local contractor has an opening
84 ZIP codes covered in Chicago
Chicago homes and their HVAC systems
The bungalow belt on the Northwest and Southwest Sides has 1920s homes with basements and limited duct space. Two-flats often have one boiler or two furnaces. Newer homes and townhouses in neighborhoods like the West Loop have modern forced air.
Local conditions that affect your system
Extreme cold
Subzero nights and wind chills test furnace ignition, inducer motors and flame sensors; a failed furnace can freeze pipes within hours.
Boiler buildings
Many two-flats and courtyard buildings depend on one boiler, so expansion tanks, circulators and zone valves matter.
Adding AC
High-velocity small-duct and ductless systems are common ways to cool homes with radiators.
Seasons and peak demand in Chicago
Chicago winters average in the 20s with frequent single-digit and subzero nights, and the wind off Lake Michigan makes it feel colder. Summers are humid, with highs in the 80s and heat waves in the 90s. Furnace calls peak in January; AC calls peak in the first heat wave of June or July.
Common HVAC calls in Chicago
Also available: emergency HVAC and every other HVAC service.
Chicago at a glance
- County
- Cook County
- Utilities
- ComEd supplies electricity, and Peoples Gas supplies natural gas in the city (Nicor Gas serves many suburbs).
- Permits & licensing
- The Chicago Department of Buildings issues permits for HVAC replacements and requires licensed, registered contractors.
- ZIP codes covered
- 60601, 60602, 60603, 60604, 60605, 60606, 60607, 60608, 60609, 60610, 60611, 60612, 60613, 60614, 60615, 60616, 60617, 60618 and 66 more
Chicago HVAC FAQ
What should I do if my furnace fails in a Chicago cold snap?
Call right away and say it's urgent. Meanwhile, open cabinet doors under sinks on outside walls, let faucets drip, and use space heaters safely.
Can I add central air to a Chicago bungalow with radiators?
Yes. Small-duct high-velocity systems run through closets and the attic, or ductless heads can cool individual rooms without new ducts.
Last reviewed . General information, not a diagnosis of your system.
Guides for Chicago homeowners
Nearby and related
Find an HVAC contractor in Chicago
One call connects you with an independent, licensed HVAC contractor who serves your ZIP code. It's free to call, and you get a quote before any work starts.
Free · No obligation