Fast, Friendly Service in Toronto
Our Toronto office is minutes from Riverdale, Leslieville, the Danforth, Leaside and the Beaches, and our Toronto team has been in the city’s basements for over forty years, first as Hoerner Heating & Plumbing and since 2024 as part of Dr HVAC. Most calls get a licensed technician to your door in four hours or less.
Toronto summers are humid and the houses east of Yonge were never built for central air. Condensers squeezed into side yards, line sets run up the outside wall, and ductwork that was sized for heat, not cooling. We service those setups every week.
Best of all, we provide a 100% satisfaction guarantee on our work. We promise the work will be done correctly, or we will fix it for free.
I called Dr HVAC for an emergency repair on my air conditioning in the middle of Toronto’s first heat wave of the year. My air conditioning was leaking water directly into my furnace and pooling on the ground. They sent a technician within a couple hours who immediately was able to determine the cause and solution of the problem.
Matthew C.
Our Cooling Services
If your unit is at end of life, the quote visit is free. We size the system to your house, not a rule of thumb, and we install Trane and RunTru.
Learn About AC InstallationA heat pump is a hyper-efficient air conditioner that also heats in spring and fall. If you are replacing an AC anyway, this is worth a conversation.
Learn About Heat Pumps
A spring tune-up catches weak capacitors and low refrigerant before the first heat wave. Service Club members get guaranteed appointments in peak season.
See the Service Club PlanWhat Our Customers Are Saying2,500+ Five Star Google Reviews
UPDATE – as always, Dr. HVAC is my go to. Ty was polite, professional and thorough!
A pleasure having someone like this enter my home to take care of maintenance, thanks Kurtis🙏🏻
Ivana J.
After the installation, he carefully checked the radiators throughout the house to ensure each one was working as expected. This process led to a few adjustments in the boiler room, but he handled everything like the seasoned professional he is.
Sherman provided white glove service and I would definitely give him a five star rating! I would be very happy to work with Sherman again!
Gary, Chris, and Binny were thorough and professional. Adam explained everything clearly and kindly. Marcus went above and beyond – his skill and perseverance solved our pipe issues, and his kindness truly stood out.
This is a wonderful company with a team that truly cares. Highly recommend.
It has been 4 months since our AC broke – not that we need it now given its mid-December. However, two repair technicians arrived today, pulled more parts off of our AC, left them on the floor, left other parts in stair wells and then left without a word to anyone! The also left the AC completely uncovered with wires sticking out everywhere. (See Photos)
This is completely unprofessional and disrespectful. Our “brand new” AC has now been broken for 4 months! We are also mind blown that they would not only leave the house and stop working without letting any of us know, but to also leave parts all over the place. We called them and their admin has no idea what is going on.
Highly recommend buying your AC from anywhere else. Worst experience we have ever had! They have continuously not respected my elderly father.
Update: Two weeks later we have still not received a call back from a manager and our AC is currently in this state, unusable (see photo).
——
Original Review
Our brand new $9000 air conditioner which was installed less than six months ago started pouring water through the air vents of the unit (inside our house) last week. We had a technician come in who told us multiple parts of the unit where completely burnt out.
Dr. HVAC does not want to simply replace the entire unit but rather is insisting on ordering replacement parts -a fix we understood would occur in a timely manner. One week later we still do not have a working AC; parts of our house are sweltering, and every time we call in we are told a manager will call us back yet we never receive a call back.
Currently our AC is in pieces, some of which are still sitting in our stairwell.
We also explained to them that two of the residents who live here are elderly and we need the AC fixed ASAP.
Not sure if the company is under new management but this experience has been greatly disappointing and frustrating.
Cooling Toronto’s Older Homes
A lot of the houses we cool in Toronto were built before central air existed. The ductwork was designed to carry warm air up from a basement furnace, which is the wrong direction for cooling, so the top floor runs hot while the basement is freezing. We can often fix that with airflow adjustments before anyone talks about new equipment.
The other pattern is the aging outdoor unit. Condensers from the R-22 era are still running in a lot of Toronto side yards. Refrigerant for them is expensive and hard to get, so a leak on one of those units usually starts a repair-or-replace conversation, and we will be honest about which way the numbers point.
Capacitors, contactors, fan motors and refrigerant leaks are the bulk of what we fix. Our trucks carry the common parts, so a same-day diagnosis is usually a same-day repair.
Worth knowing before you call:
In Ontario only a technician holding an Ozone Depletion Prevention certificate may handle refrigerant. A company that tops up your system every spring without finding the leak is breaking that rule and selling you the same repair twice. Ask us to find the leak first. Source: Government of Ontario.
Toronto Public Health calls a Heat Warning when the forecast shows two or more days at 31 degrees or hotter with overnight lows of 20, or a humidex of 40. Those are the days every AC company in the city is booked by noon. Get the tune-up done in May, and if the unit quits on a warning day, call early. Source: City of Toronto.
What the diagnostic visit covers:
- Thermostat and controls
- Capacitor, contactor and fan motor
- Refrigerant pressures and a leak check
- Indoor and outdoor coils and the filter
- Condensate drain and pump
- Airflow and supply temperature split
- A written price for the repair before any work starts
We repair every make and model.
Air conditioners we repair. Dr HVAC services Carrier, Lennox, Trane, American Standard, Goodman, Amana, Rheem, York, Keeprite, Heil, Tempstar, Payne and Daikin central air and ductless systems across Toronto and the GTA.
As a Trane Comfort Specialist, we also handle Trane warranty work. See our air conditioner installation page for the brands we install.
Common AC Repairs
Likely cause: Low refrigerant from a leak, a dirty coil, a failed capacitor or a frozen coil
How fast to act: Today in a heat wave, this week otherwise
Likely cause: Breaker, disconnect, thermostat, capacitor or contactor
How fast to act: Today
Likely cause: Low refrigerant or restricted airflow
How fast to act: Turn it off and call this week
Likely cause: Capacitor or fan motor
How fast to act: Today
Likely cause: Blocked condensate line or a failed pump
How fast to act: This week, before it reaches the furnace board
Likely cause: Ductwork sized for heating, dampers, or an undersized system
How fast to act: Book soon
Likely cause: Oversized unit, low refrigerant or a thermostat fault
How fast to act: This week
Likely cause: Falling efficiency: dirty coils, low charge or a tired compressor
How fast to act: Book a tune-up
Repair or ReplaceWhen should you repair or replace your air conditioner?
Most air conditioners last 10 to 15 years. A capacitor or a contactor on a young unit is a repair. A compressor on a 14-year-old unit is a conversation.
We show you what we found and give you both numbers. It is your home, so the call is yours.
If it is a replacement, monthly financing is available. See the financing options.
Under 10 years, repair almost always wins. Over 15, replacement usually does.
An R-22 unit with a leak is rarely worth refilling. The refrigerant alone can cost more than the repair is worth.
If the repair approaches half the price of a new unit, put the money into the new one.
A new unit at 16 SEER or better uses far less power than a 13 SEER unit from the 2000s. Ask us to show you the difference on your bill.
How it WorksBook in minutes
Book on your own terms. Call our office or book online. No surprise invoice at the end.
Online or by phone, whichever you prefer.
You get a notification when your technician is on the way.
Name and photo before they knock, so you know who is coming into your home.
You approve the cost before anyone picks up a tool.
Past Air Conditioner Repair & Installations
Here are some recent jobs by our expert team at Dr HVAC & Plumbing in Toronto.
Frequently Asked Questions
It might be as simple as a thermostat setting, blocked vents, a dirty filter or debris on the outdoor unit. If none of those fix it, the usual causes are a failed capacitor, low refrigerant from a leak or a frozen coil. A technician can tell you which in one visit.
Often, yes. A capacitor replacement is the single most common air conditioner repair on our books and it is done in one visit with a part from the truck. We test it before we replace it, so you are not paying for a guess.
We quote the diagnostic fee when you book and credit it toward the repair when you go ahead with us. You will know the repair price before any work starts.
Yes. We service ductless systems from every major brand, including the ones that ice over or blow warm on the hottest days, which is usually a refrigerant or drainage issue rather than a dead unit.
If the fault is electrical, a small repair can buy another season. If it is a refrigerant leak, the answer is usually no. Canada cut HCFC refrigerants like R-22 by 99.5% by 2020 and phases them out completely by 2030, so recharging a leaking system often costs more than the unit is worth. Any replacement has to meet SEER2 13.4 under Canada’s Energy Efficiency Regulations, and most of what we install is well above it. We will show you both numbers. Sources: Environment and Climate Change Canada, Natural Resources Canada.
Ten to fifteen years is typical, and yearly maintenance is what gets you to the top of that range. Units that skip tune-ups tend to fail early on the parts a tune-up would have caught.
Reviewed by an authorized Dr HVAC technician against real AC repairs we completed across Toronto in 2026.
Air Conditioner Guides
Useful guides to help you make an informed decision.
Communities We Serve
No matter what your home needs, we’ve got the solution for you.
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(905) 457-4425