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Air Conditioner Repair Service

Emergency Air Conditioning Repair Services in Toronto and Surrounding Area

Air conditioning repair in Toronto

HVAC contractors you can trust


We will give you the cost comparison for air conditioning repair versus the cost to replace your AC with a new one.

24/7 Support

Our dedicated service team is on standby 24/7 to help with your emergency air conditioning repair.


Many customers tell us other companies advised them to replace their old air conditioning units unnecessarily. Instead, our professional technicians provide a quick and inexpensive air conditioning repair.


Our technicians keep an inventory of common parts in their trucks, so they can complete your air conditioning repair on the spot.

Do I Need an AC Service Call?

We are the best AC repair company to call when your air conditioner isn’t working properly or at all.  These are some of the most common reasons for an AC failure and some basic troubleshooting tips before you make your service call.

  • AC does not turn on: Check to see that it is receiving power (that is, no circuit breakers are tripped) and that the thermostat is set to “cool”. 
  • AC is not blowing cool air: 
  1. Make sure your thermostat is set to cooling mode, and then set it lower than the current temperature. 
  2. Make sure your filter is clean. 
  3. Clear your outdoor unit’s condenser coils of leaves, sticks, or other debris. If there is a thick layer of dirt on the coils, a professional will need to clean them (they are very fragile).
  4. Your air conditioner does not have enough refrigerant, which also indicates a leak in your AC.
  • Weak Airflow: If your filter is clean, weak airflow is a sign that your air conditioner isn’t working efficiently or that there is a blockage somewhere in the ductwork. Broken motors or other serious issues can also cause poor airflow.
  • Frequent Cycling: It’s normal for your system to turn on more often during the hottest days, but it shouldn’t turn on and off rapidly. A system that cycles too frequently may need a simple tune-up or it may be a sign of a bigger problem.
  • Ice Build-up: If you notice that ice is building up on your indoor or outdoor AC unit, turn it off immediately. Make sure your filter is clean. The AC can only be serviced once the ice has melted.
  • Leaking water: The condensation drain may be clogged or the indoor coil may be freezing up due to a dirty filter or low refrigerant charge. The drain should be cleaned and the filter changed if this is the case. 
  • Strange Noises or Smells: If your air conditioner is making strange sounds or emitting foul odors, don’t ignore these signs. Call for a professional service.

After you’ve gone through the above basic troubleshooting and your air conditioner is still not working, call High Efficiency for professional diagnosis and repair service. Generally, if your AC is older than 10 years, it might be on its way out, so it might be time to replace it.

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