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Reviewed by Marcus AldridgeSenior Editorial Reviewer — Plumbing, HVAC & Wet Trades
Who to call · Chicago

Uneven heating or cooling between roomsChicago, Illinois

When some rooms are too hot while others are freezing, the problem usually lies in your HVAC ductwork, insulation, or system sizing. Common causes include blocked or leaking ducts, closed or misadjusted dampers, insufficient insulation in certain walls or attic areas, or an HVAC system that's too small for the space. An HVAC technician can perform a duct inspection, check airflow at each register, and recommend solutions like duct sealing, damper adjustment, or adding a zoning system.

Why this is common in Chicago

Lake effect weather creates extreme temperature swings — from -20°F winters to 95°F+ summers — meaning both heating and cooling systems work year-round. Furnace failures during polar vortex events are emergency situations, and many Chicago homes rely on aging boiler systems.

Who to call

For this problem in Chicago, call a: HVAC Technician

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Symptoms to look for

  • Temperature varies 5°F+ between rooms
  • Second floor much hotter than first floor in summer
  • Certain rooms never reach thermostat setpoint
  • Weak airflow from some vents while others blow strongly

Emergency Service in Chicago

Emergency home services in Chicago are widely available 24/7, with typical response times of 30–60 minutes. After-hours rates range from $100–$200/hour. During polar vortex events, heating emergencies can see delays of 4–8 hours due to overwhelming demand. Illinois requires plumbing and electrical licenses for all work.

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