Air Conditioning Repair & Installation in Toronto
Toronto summers are brutal — when your AC goes down, you need a team that answers the phone and shows up fast. 24/7 emergency service, TSSA-certified technicians, and 27 years of experience across every Toronto neighbourhood.
Toronto's Trusted AC Repair and Installation Team
Toronto summers have become increasingly intense, with heat waves pushing temperatures above 35 degrees Celsius and humidity making outdoor conditions feel closer to 45. For the city's diverse mix of housing — century homes in the Annex, Victorian semis in Cabbagetown, post-war bungalows in East York, high-rises along the waterfront, and modern builds in Liberty Village — a properly functioning air conditioning system is no longer optional. It is essential for health, comfort, and sleep.
Megacity HVAC has been providing air conditioning repair and installation services across Toronto since 1999. From our base in East York, our TSSA-certified technicians respond to service calls across every Toronto neighbourhood and the broader GTA. We offer 24/7 emergency AC repair because a complete cooling failure during a heat advisory is a genuine health concern, particularly for seniors, young children, and anyone with respiratory conditions.
Toronto's housing stock is exceptionally diverse, and we have spent over 27 years learning how to work with every type. Century homes in the Annex and Cabbagetown often have no existing ductwork, making ductless mini-splits the practical choice. Post-war semis in East York and Leaside typically have older duct systems that may need modification for a modern AC. Newer townhomes in Leslieville and the Junction usually have builder-grade systems that were undersized or poorly installed. We have seen and solved every configuration.
For repairs, we stock the most common AC parts on every truck — capacitors, contactors, fan motors, refrigerant, thermostats, and control boards. This means most Toronto AC repairs are completed on the first visit. For new installations, we are an Authorized Lennox Dealer and also install Carrier, Trane, Ducane, Daikin, and Rheem. Every system we install is properly sized using a Manual J load calculation specific to your home.
As an Enbridge Sustain Trusted Partner, we process all rebate applications on your behalf. Combined with available government programs, Toronto homeowners can save significantly on qualifying high-efficiency equipment. We handle the paperwork so you get every dollar you are owed.
AC Services
What to Expect During an AC Repair Visit in Toronto
When you call us for AC repair, we start by asking what your system is doing — not cooling, blowing warm air, making noise, leaking water, or running non-stop. This helps our technician arrive prepared with the right parts and diagnostic equipment.
Once on-site, our TSSA-certified technician runs a full diagnostic. This includes checking refrigerant levels with gauges, testing electrical components with a multimeter, inspecting the condenser coils, checking the evaporator coil and drain line, testing the compressor and capacitor, verifying thermostat operation, and measuring airflow. The diagnostic takes 20 to 30 minutes.
After identifying the issue, we explain the problem, show you what we found when possible, and provide a fixed price for the repair. You decide whether to proceed — no pressure. If your AC unit is beyond economical repair, we give you an honest assessment and a quote for replacement. We never push a new system when a repair will solve the problem.
Describe the Problem
Tell us the symptoms over the phone. We dispatch a tech with the right parts for your likely issue.
Full AC Diagnostic
Refrigerant pressure, electrical testing, coil inspection, compressor check, and airflow measurement.
Upfront Quote
Clear explanation of the problem and a fixed repair price. You approve before any work starts.
Repair and Verify
Complete the repair, run the system through a full cooling cycle, check temperature differential, clean up.
Why Toronto Homeowners Trust Megacity for AC Repair
AC Problems We Fix Every Day Across Toronto
Our technicians diagnose and resolve these issues in Toronto homes daily. Most repairs are completed same-day with parts we carry on our trucks.
AC Not Cooling
Low refrigerant, dirty condenser coils, failing compressor, or frozen evaporator coil. The most common summer emergency call we receive across Toronto — often caused by skipped annual maintenance.
AC Blowing Warm Air
Refrigerant leak, compressor failure, thermostat misconfiguration, or a severely clogged air filter. We systematically check every component during our diagnostic visit to identify the root cause.
Water Leaking from AC
Clogged condensate drain, frozen evaporator coil, or cracked drain pan. Toronto humidity puts extra load on condensate systems, making drain clogs one of the most frequent summer service calls.
AC Short Cycling
The system turns on and off repeatedly without completing a full cycle. Typically caused by an oversized unit, dirty filter, low refrigerant, or electrical issues. Wastes energy and accelerates wear.
Strange Noises from AC
Grinding, squealing, buzzing, or rattling from the indoor or outdoor unit. Usually a failing fan motor, loose mounting hardware, or compressor issues. Early attention prevents costly breakdowns.
Uneven Cooling
Some rooms are cold while others stay warm. Common in multi-storey Toronto homes with single-zone systems. Could be ductwork issues, improper sizing, or a failing blower. Zone solutions available.
AC Repair Across All of Toronto
From our base in East York, our technicians reach every Toronto neighbourhood quickly. We know the homes in your area and the AC systems they use.
Toronto Homeowners — Save on a New AC System
As a certified Enbridge Sustain partner, we handle all rebate paperwork for qualifying high-efficiency AC installations. We make sure Toronto homeowners get every dollar available.
Learn About RebatesAC Repair Toronto — FAQ
How much does AC repair cost in Toronto?
AC repair in Toronto typically costs between $150 and $600 depending on the issue. Common repairs like capacitor replacement, thermostat recalibration, or fan motor repair run $150 to $300. More complex work such as compressor repair, refrigerant leak detection, or evaporator coil replacement ranges from $300 to $600. We always diagnose the problem and provide a clear price before starting any work.
Do you offer 24/7 emergency AC repair in Toronto?
Yes. We provide around-the-clock emergency AC repair across all of Toronto and the GTA. A failed AC system in the middle of a Toronto heat wave is a health risk, especially for seniors and young children. Call (416) 286-5665 at any time and we dispatch a TSSA-certified technician. No extra diagnostic fees for evenings or weekends.
What areas of Toronto do you cover for AC repair?
We service every Toronto neighbourhood including downtown, midtown, Scarborough, North York, Etobicoke, East York, the Beaches, Leslieville, High Park, Junction, Roncesvalles, Yorkville, and the entire GTA. Our technicians are positioned across the city for fast response times regardless of where you are located.
How long does a new AC installation take in Toronto?
Most central AC installations are completed in a single day, typically 4 to 8 hours. This includes removing the old unit, setting the new outdoor condenser, connecting refrigerant lines, electrical wiring, thermostat setup, and full system testing. Ductless mini-split installations take 3 to 5 hours for a single zone. We always provide a time estimate before starting.
What SEER rating should I choose for my Toronto home?
We recommend a minimum of 16 SEER for Toronto homes. A 16 SEER unit uses about 25 percent less electricity than a baseline 14 SEER model, which adds up significantly over a Toronto summer. For maximum efficiency, 18 to 21 SEER models with variable-speed compressors offer the lowest operating costs and most consistent temperatures. Higher SEER units cost more upfront but pay for themselves within 3 to 5 years.
When should I replace my AC instead of repairing it?
Consider replacing your AC if it is over 10 to 12 years old, uses R-22 refrigerant (Freon, which has been phased out and is extremely expensive to recharge), needs a compressor replacement, or if the repair cost is more than half the price of a new unit. Also consider replacement if your cooling bills keep rising despite regular maintenance. A modern 16 SEER unit costs $3,500 to $6,000 installed and uses 25 to 40 percent less electricity than an older 10 to 12 SEER system.
Our HVAC Services
Need AC Repair in Toronto? We're On It
24/7 emergency service, transparent pricing, and 27+ years of experience across every Toronto neighbourhood. Call now or get a free estimate.