When to Call ChillTech
These are common signs that a residential HVAC system needs a professional diagnostic visit instead of another quick reset.
Leaking tank, rusty water, or water around the unit
Hot water runs out faster than it used to
Pilot or burner trouble on gas water heaters
Older unit with repeat repairs or poor recovery time
What We Handle
Service scope
- Tank water heater replacement and installation
- Tankless water heater planning and replacement
- Venting, gas connection, water line, and safety checks
- Sizing recommendations based on household hot water use
How the visit works
- Confirm tank size, fuel type, venting setup, and household hot water demand.
- Check whether repair is practical or replacement is the better value.
- Install the correct system with clean connections and proper venting.
- Test recovery, temperature, leaks, and safe operation before leaving.
Serving Chicago and Nearby Suburbs
ChillTech serves residential HVAC customers across Chicago neighborhoods and nearby suburbs. Dispatch timing depends on the day, weather demand, and parts availability.
Chicago neighborhoods
- Lincoln Park
- Wicker Park
- Pilsen
- Bridgeport
- Logan Square
- Lakeview
- Humboldt Park
- West Loop
- Bucktown
- Ukrainian Village
- Avondale
- Albany Park
Nearby suburbs
- Oak Park
- Evanston
- Cicero
- Berwyn
- Skokie
- Forest Park
- Elmwood Park
- Brookfield
- Norridge
- Harwood Heights
Related HVAC Services
Furnace Repair
Furnace repair and installation in Chicago and nearby suburbs. ChillTech handles no-heat calls, tune-ups, safety checks, and new furnaces from $2,900.
View Furnace RepairBoiler Repair
Boiler repair and installation for Chicago homes with radiant heat. ChillTech services circulation, controls, venting, leaks, tune-ups, and Weil-McLain systems.
View Boiler RepairHVAC Maintenance
HVAC maintenance and seasonal tune-ups in Chicago. ChillTech services furnaces, AC systems, boilers, ductwork, and residential comfort systems.
View HVAC MaintenanceFAQ
Do you replace leaking water heaters in Chicago?
Yes. ChillTech replaces residential water heaters and can often help quickly when a tank has started leaking.
Do you install tankless water heaters?
Yes. ChillTech can review whether tankless makes sense for the home, venting, gas capacity, and hot water usage.
How do I know what size water heater I need?
Sizing depends on household size, fixtures, fuel type, recovery rate, and usage patterns. ChillTech reviews those factors before recommending equipment.