HVAC Services in Chicago and Surrounding Areas
4J’s Heating and Cooling provides residential and commercial HVAC services throughout Chicago and surrounding suburbs. We provide air conditioning repair and installation, furnace repair and replacement, residential boiler installation, HVAC maintenance and diagnostics.
Areas We Serve
Chicago • Portage Park • Jefferson Park • Irving Park • Lincoln Square • Edison Park • Rogers Park • Lakeview • Logan Square • Avondale • Skokie • Niles • Arlington Heights • Highland Park
Share your full address and ZIP code so we can confirm coverage and appointment availability. English and Spanish assistance is available.
Need heating or cooling service? Request service online, call 847-454-4049 or send a text message.
HVAC repairs and completed jobs by ZIP code
4J’s Heating and Cooling provides furnace repair, AC repair, boiler service, heat-pump service, and walk-in cooler and freezer refrigeration across Chicago and nearby suburbs.
Completed HVAC work in Chicago ZIP 60630
2 verified completed service visits, including HVAC service.
Completed HVAC work in ZIP 60201
1 verified completed service visit, including HVAC service.
Completed HVAC work in ZIP 60453
1 verified completed service visit, including HVAC service.
Completed HVAC work in Chicago ZIP 60608
1 verified completed service visit, including HVAC service.
Completed HVAC work in Chicago ZIP 60613
1 verified completed service visit, including HVAC service.
Completed HVAC work in Chicago ZIP 60626
1 verified completed service visit, including HVAC service.
Completed HVAC work in Chicago ZIP 60651
1 verified completed service visit, including HVAC service.
Recent approved repair work
Completed HVAC service in Chicago ZIP 60630
Furnace maintenance service completed in Chicago ZIP 60630. Photo from the service visit shows the furnace control board and wiring. 4J’s Heating and Cooling.
Completed HVAC service in ZIP 60201
Furnace diagnostic service completed in Evanston ZIP 60201. 4J’s Heating and Cooling. Call (847) 454-4049.
Gas-valve service and heating repair in Chicago ZIP 60626
Gas-valve replacement completed in Chicago ZIP 60626 on October 12, 2026. 4J’s Heating and Cooling.