Toronto · Cooling repair
Air conditioning repair in Toronto
Cooling repair for Toronto homes — from a central AC that’s suddenly blowing warm during a heat warning to a ductless mini-split that won’t hold setpoint. We diagnose first, quote the actual repair, and don’t up-sell tonnage you don’t need.
What goes wrong on a 32 °C afternoon.
Most warm-air-from-the-vent calls during a Toronto heat warning are one of a few things — a tripped breaker, a failed capacitor, a refrigerant leak, or an iced-up evaporator coil that needs to thaw before anyone can read it correctly.
- AC running but blowing warm or weak air
- Outdoor unit hums but fan won’t spin
- Ice on the indoor coil or refrigerant line
- Frequent breaker trips on cooling cycles
- Loud bearing whine or rattling condenser fan
- Ductless head leaking water indoors
Refrigerant readings, electrical, airflow.
A proper AC diagnosis is three loops at once: the refrigerant cycle, the electrical control side, and the airflow path. Skipping any one of them is how a charge top-off becomes the same call again next month.
Book an AC diagnostic- Suction and head pressures, superheat / subcool
- Capacitor microfarads, contactor wear, fan motor amps
- Indoor coil and condenser coil cleanliness
- Filter, blower amperage, supply / return airflow
- Line-set leak check (electronic + bubble)
- Drain pan, condensate line and float switch
Repair vs replace
When AC repair makes sense in Toronto — and when it doesn’t.
Capacitors, contactors, fan motors and most electrical faults are straightforward repairs. Refrigerant leaks on older systems — especially R-22 units — start to make a strong case for replacement instead.
Electrical fault on a sound system.
Capacitor, contactor or fan-motor failure on a unit under about 10–12 years old with no refrigerant issues — straightforward fix.
Refrigerant leak on an aging unit.
If the system is older, uses a phased-out refrigerant, or the leak is in a coil, the cost of repair often gets close to the cost of a new install.
Replacing anyway? Look at a heat pump.
A modern cold-climate heat pump covers cooling and shoulder-season heating from one outdoor unit.
Heat warning + no AC? Call the after-hours line.
Health-risk weather doesn’t wait. Emergency dispatch runs nights and weekends.
More Toronto services
Other things Toronto homeowners ask us about.
Furnace repair — Toronto
Diagnostics and repair for Toronto furnaces — ignition, sensors, blower motors, and intermittent no-heat calls.
AC installation — Toronto
Right-sized central AC and ductless mini-split installs for Toronto homes — sized to the load, not the brochure.
Heat pump installation — Toronto
Cold-climate air-source heat pump installs designed for Toronto winters — all-electric or paired dual-fuel.
Hot water tank replacement — Toronto
Same-day swap availability for failing tanks across Toronto — gas, electric, and tankless conversions.
Emergency HVAC — Toronto
Nights, weekends and holidays — no-heat, no-AC, water-heater leaks. After-hours dispatch from the on-call rotation.
HVAC maintenance — Toronto
Fall and spring tune-ups for Toronto homes — combustion checks, coil cleans, and the small fixes that prevent the bad calls.
Toronto residential
AC not keeping up? Tell us what’s happening.
Send a few details — age of the system, what the thermostat reads, what you’re seeing at the outdoor unit. A real co-op member replies with a window or a same-day call-out.
Request service