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Furnace Repair · Toronto, OntarioFurnace Repair in Toronto
Furnace repair in Toronto from ZK Mechanical runs $150–$800 for most faults, after a $90–$150 diagnostic that we credit toward the fix. Our TSSA-licensed technicians cover the whole city, from pre-war semis in Leslieville to 1960s bungalows in Scarborough, and we never add an evening, weekend or holiday surcharge.
Furnace Repair in Toronto — Fast, Licensed, Same-Day Service
Toronto's housing stock throws up furnace problems that suburban homes never see. Pre-war semis in Leslieville, Roncesvalles and the Junction usually have forced air that was retrofitted into a house built for a coal boiler, so the return ducts are undersized and the furnace sits in a dug-out basement with a metre of headroom around it. Those retrofits starve a condensing furnace of airflow, which is why we find tripped high-limit switches on 95% AFUE units only 8 to 10 years old. Add the 1950s and 60s bungalows of Scarborough, North York and Etobicoke, where a 60,000 BTU furnace often still breathes through one central return, and a no-heat call in this city is rarely about a single bad part.
Every Toronto visit starts with a diagnostic at $90–$150, folded into the repair if you go ahead, and quoted in writing before we start. The common Toronto repairs sit at $200 to $700: a flame sensor cleaning at $150–$250, an igniter at $250–$400, a capacitor at $150–$300 or a gas valve at $400–$700. Blower motors run $500–$1,500 depending on whether the furnace uses a PSC or an ECM motor, and a control board is $500–$1,200. A cracked heat exchanger costs $1,500–$3,000 to replace, and because it almost always turns up on furnaces past 15 years, we'll usually walk you through the repair versus replacement math instead.
Toronto adds a few wrinkles that we plan for. Semis and rowhouses share a party wall, so a mid-efficiency furnace venting through a masonry chimney is often sharing that flue with the water heater, and swapping to a sidewall-vented condensing furnace orphans the water heater on a chimney that then needs a liner under CSA B149.1. Downtown condos in CityPlace, Liberty Village and the Distillery District mostly run fan coils or in-suite heat pumps rather than furnaces, and we service those units once the property manager clears access. The furnace repair price you approve is the price you pay, day or night.
Why ZK Mechanical for furnace repair in Toronto
- TSSA-licensed (G2) gas technicians on every Toronto furnace call
- Retrofit-duct experience in pre-war semis: Leslieville, Roncesvalles, the Junction, Riverdale
- Diagnostic $90–$150, credited toward the repair when you proceed
- Written price before the work starts, with no evening or weekend premium
- Parts carried for Lennox, Carrier, Trane, Goodman, Rheem, York, Daikin and Amana
- Chimney and venting checks when a furnace shares a flue with the water heater
- In-suite fan coil and heat pump service for downtown condo towers
Licensed technicians, Toronto dispatch, no overtime charges.
Furnace Repair in Toronto — FAQs
What should I check before calling for furnace repair in Toronto?
Three things clear a surprising share of Toronto no-heat calls. Confirm the thermostat is set to Heat and calling for a higher temperature, that the furnace switch (it looks like a light switch on or beside the unit) is on, and that the filter isn't packed solid. If the furnace starts and stops repeatedly, look outside for a sidewall vent buried in snow. If none of that helps, call or book online and we'll bring the diagnostic to you.
What does furnace repair typically cost in Toronto?
Beyond the common $200 to $700 fixes, the bigger Toronto repairs are a draft inducer motor at $400–$900, a blower motor at $500–$1,500 and a control board at $500–$1,200, each quoted in writing after the $90–$150 diagnostic. Toronto permit fees apply to replacements, not repairs. Our answer on how much furnace repair costs in Toronto lists prices part by part.
Do you service furnaces in Toronto condos?
Yes, with a distinction. Stacked townhouses and older low-rise buildings in Etobicoke, Scarborough and North York often have a small furnace or a fan coil in each unit, and we service both. Newer towers in CityPlace and Liberty Village usually run building-level heating with an in-suite fan coil; we can fix the fan coil, thermostat and valve, but the boiler plant belongs to the building's contractor.
Is my old Toronto furnace worth repairing?
Use two numbers: the furnace's age and the repair quote against a replacement at $4,300–$7,000 installed. Under 12 years, repair almost every time. Between 12 and 15, repair if the quote is under half the replacement price, otherwise replace. Past 15, a heat exchanger, blower motor or control board failure tips it to replacement, and the furnace cost guide explains Toronto's permit process, which is more involved than the suburbs'.
Are you licensed for gas work in Toronto?
Yes. Every technician who opens a furnace for us holds a TSSA gas licence, and Ontario requires one for any work on a gas appliance. Ask any contractor for the licence class before they start; a G2 covers residential furnaces. Under the Hawkins-Gignac Act, a Toronto home with a gas furnace also needs a working CO alarm near the sleeping areas, and we'll check for one while we're there.
Other HVAC services in Toronto
Furnace Repair in Toronto — fast.
Emergency repair or planned upgrade, quoted in writing before any work starts.