# Emergency Furnace Repair Toronto | 24/7, 2-Hour Response > No heat? Emergency furnace repair Toronto, 24/7. TSSA-certified techs, parts on every van, $150 diagnostic applied to the repair. Call 647-254-4113. URL: https://besthvactoronto.ca/emergency-furnace-repair/ ![TSSA-certified HVAC technician diagnosing a failed furnace in a Toronto basement mechanical room during a winter emergency call](/images/hero/tssa-certified-hvac-technician-diagnosing-a-failed.webp) # 24/7 Emergency Furnace Repair in Toronto, 2-Hour Response Last updated: September 4, 2026 Best HVAC Toronto [/ →](/) has over 20+ years of Greater Toronto Area experience specialising in emergency furnace repair across Toronto and the wider GTA. Emergency furnace repair across Toronto and the GTA with 24/7 dispatch and 2-hour target response window for no-heat winter calls. Our TSSA G1 or G2 certified crew diagnoses cracked heat exchangers with borescope and combustion analyzer verification, ignition failures (hot surface igniter, flame sensor, spark ignition), blower motor faults, limit switch trips, pressure switch failures, gas valve issues, and control board diagnostics. Common failure parts stocked on every van: hot surface igniters, flame sensors, pressure switches, capacitors, limit switches, blower motor modules, and thermostats, so most emergency repairs are completed same-visit. Repair coverage includes Lennox, Carrier, Trane, Bosch, Napoleon, and York furnaces plus every major brand in the GTA market. Emergency dispatch pricing runs $250 to $400 depending on time of day, with the diagnostic fee applied to any authorized repair. Cold-snap dispatch capacity held for the coldest 10 days of the winter when call volume spikes. Most emergency repairs land between $250 and $500 CAD including parts. Weekend and after-hours calls are slightly higher, disclosed in writing before work starts. Same-day weekday capacity. 24/7 dispatch for gas emergencies and Enbridge Red Tags. - check\_circle TSSA G1/G2 certified - check\_circle 20+ years experience - check\_circle Manufacturer-Authorized Dealer call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) View pricing [#pricing →](#pricing) payments **From $150**. diagnostic, applied to the repair - star star star star star 4.9 (150+ reviews) - verified TSSA G1/G2 Certified & $2M Insured - bolt 2-Hour Emergency Response - workspace\_premium Manufacturer-Authorized Dealer Common problems ## Sound familiar? mode\_heat ### No heat and the temperature is dropping A furnace failure in a Toronto winter cannot wait until tomorrow. Our TSSA-certified team dispatches within two hours, 24 hours a day, to restore heat before indoor temperatures reach dangerous levels. sync\_problem ### Furnace keeps locking out and won't stay running Repeated lockouts usually point to a failed hot surface igniter, a dirty flame sensor, or a faulty pressure switch. We carry these parts on the van for a same-visit repair. payments ### Worried about overnight or weekend pricing We tell you the exact cost before any work begins. Weekend and after-hours rates are slightly higher, but you will see the number in writing before our technicians pick up a tool. ## No heat in a Toronto winter? Every hour matters A furnace failure during a Toronto winter is not something to wait on. Indoor temperatures in a detached home or semi can drop several degrees per hour once the heat is off, and frozen pipes become a real risk in basements and exterior walls within a few hours on the coldest nights. Our TSSA-certified team dispatches across Toronto and the GTA within two hours, 24 hours a day, because no-heat calls do not keep office hours. Emergency furnace repair covers the full range of failures our technicians see every heating season: a furnace that ignites briefly and shuts off before the house warms up, one that cycles on and off every few minutes, one that runs the blower but delivers cold air, and one that will not attempt to start at all. Each symptom points to a different component, and identifying the correct fault on the first visit determines whether you are warm again in two hours or waiting for a part to be ordered. Our technicians arrive with the most common furnace repair parts stocked on every service vehicle. Hot surface igniters, flame sensors, pressure switches, limit switches, capacitors, and blower motor components are on board, which is why most emergency calls are closed on the first visit rather than requiring a callback. ![TSSA-certified technician running a combustion analysis on a residential furnace during a winter no-heat emergency in a Toronto basement mechanical room](/images/misc/tssa-certified-technician-running-combustion-analy.webp) ## Why did my furnace stop working? ### Furnace ignites briefly, then shuts off before the house warms up This is the most common winter emergency call. The igniter works, the burners light, and the unit shuts down within a few seconds. The usual cause is a dirty or failed flame sensor: the sensor cannot confirm the flame is present, so the control board locks out as a safety measure after one to three attempts. Cleaning or replacing the flame sensor resolves the problem in most cases. A failed hot surface igniter produces the same lockout sequence but without any successful ignition. Both parts are carried on the van. ### Blower runs but the air coming from the registers is cold The burners fire and the heat exchanger warms up, but the blower shuts down before delivering heat, or the limit switch trips on over-temperature and cuts the burners. Common causes are a completely blocked air filter, a failed blower motor capacitor, or a failing blower motor itself. A blocked filter is the easiest check before calling: if the filter is visibly packed solid, replace it and restart the system. If the problem continues, the remaining causes require a technician and a multimeter to diagnose safely. ### Furnace will not attempt to start at all No sounds, no draft, no ignition attempt. Check the thermostat first, then the circuit breaker for the furnace. If both are fine, the cause is usually a failed control board, a stuck-open pressure switch, or a failed draft inducer motor. These require proper electrical diagnosis to trace, and a failed inducer motor also prevents safe ignition because there is no combustion air draw. ### Furnace short-cycles every two to three minutes Turning on and off rapidly points to an oversized unit, a severely restricted filter, or a failing limit switch. In Toronto bungalows with finished basements, restricted return air is a common contributor, and correcting the ductwork [/ductwork-duct-cleaning/ →](/ductwork-duct-cleaning/) often resolves the short-cycling more cheaply than replacing the furnace. ### Draft inducer or gas valve failure A failed draft inducer motor prevents ignition entirely because the pressure switch will not close without adequate combustion air draw. A failed gas valve means no fuel reaches the burner even when everything else is working. Both require a TSSA-certified technician to diagnose and replace under Ontario gas code, and both are within the scope of a standard emergency call. ## How much does emergency furnace repair cost in Toronto? The diagnostic fee is $150 and applies to the repair if you proceed. Most emergency repairs land between $250 and $500 CAD including the diagnostic and parts. Weekend and after-hours calls carry a slightly higher rate, and you will see the exact number in writing before any work begins. Common single-component failures, the igniter, flame sensor, pressure switch, or capacitor, typically resolve in the $250 to $350 range. Blower motor or control board replacements sit higher, usually $400 to $600. A gas valve or inducer motor replacement can approach or exceed $500 depending on the unit and parts availability. If the diagnosis shows that the repair cost is approaching the value of a newer furnace, our technicians will show you both numbers side by side and let you decide without pressure. All pricing is in CAD and confirmed in writing before work begins. Weekend and after-hours rates are disclosed at the start of the call, not revealed on the invoice. ## Which Toronto and GTA neighbourhoods do we cover? Our two-hour response covers all of Toronto’s neighbourhoods and boroughs, including North York, Etobicoke, Scarborough, East York, and York. Beyond the city, the same response target extends to Mississauga, Brampton, Vaughan, Woodbridge, Maple, Thornhill, Markham, Richmond Hill, Oakville, Burlington, Milton, and the Durham region including Ajax, Pickering, Whitby, and Oshawa. Toronto’s older housing stock creates some urgency around furnace failures that newer suburbs do not face in the same way. Detached homes and brick semis in North York, Scarborough, and East York frequently have minimal insulation in the exterior walls and lose heat quickly once the furnace is off. Condo units with forced-air systems face a different set of challenges: the mechanical room is often tight, the furnace model is sometimes unusual, and building management may have restrictions on access. Our technicians are experienced working in both environments. If your furnace has reached the end of its serviceable life and the emergency repair cost does not make sense, our TSSA-certified team can quote a furnace replacement [/furnace-installation-repair/ →](/furnace-installation-repair/) during the same visit. If the no-heat call is connected to a gas shutdown or an Enbridge notice, our team handles Red Tag compliance and re-certification [/enbridge-red-tag-compliance/ →](/enbridge-red-tag-compliance/) as part of a single visit where possible. ## Furnace down right now? Call 647-254-4113, day or night No heat is a genuine emergency. Call 647-254-4113 any time, day or night, and our TSSA-certified team will be on-site within two hours across Toronto and the Greater Toronto Area. Transparent pricing ## How much does emergency furnace cost in Toronto? Most emergency repairs land between $250 and $500 CAD including parts. Weekend and after-hours calls are slightly higher, disclosed in writing before work starts. receipt\_long Written quote before any work begins. No hidden fees. ### Diagnostic Applied to the repair if you proceed Starting from $ 150 diagnostic, applied to the repair - check Full no-heat diagnosis - check Igniter, flame sensor, pressure switch, blower motor checked - check Combustion analysis and CO readings - check Same-day on weekday emergencies Get a quote [tel:+16472544113 →](tel:+16472544113) MOST COMMON ### Diagnostic + common repair Most emergency calls resolve here Starting from $ 350 diagnostic, applied to the repair - check Diagnostic fee included - check Hot surface igniter, flame sensor, or limit switch replacement - check Common parts stocked on every van - check 24/7 dispatch, 2-hour GTA response Get a quote [tel:+16472544113 →](tel:+16472544113) ### Diagnostic + major repair Blower motor, control board, or gas valve Starting from $ 500 diagnostic, applied to the repair - check Diagnostic fee included - check Blower motor or control board replacement - check Gas valve or draft inducer replacement - check Written quote in CAD before work starts Get a quote [tel:+16472544113 →](tel:+16472544113) Prices are guide ranges for Toronto and the GTA. Final pricing depends on your equipment, access, and site conditions, and we confirm it in writing before starting. Request a free estimate [/contact/ →](/contact/) or call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) . savings Financing available on approved credit, plus lease-to-own with zero down on qualifying installs. Why us ## Why choose Best HVAC Toronto for emergency furnace? bolt ### Two-hour emergency response, 24/7 Our TSSA-certified team holds a two-hour response window across Toronto and the GTA, 24 hours a day, including weekends and Ontario holidays. No-heat calls are never told to wait until morning. build ### Parts on the van, fix on the first visit Hot surface igniters, flame sensors, pressure switches, capacitors, and blower motor components are stocked on every service vehicle, so most emergency calls are resolved in a single visit rather than requiring a part order. receipt\_long ### Transparent pricing in writing The diagnostic is $150 and applies to the repair. Emergency and after-hours rates are slightly higher, but you will see the number in writing before work begins, so the invoice never surprises you. workspace\_premium ### TSSA G1/G2 certified on every call Every technician carries TSSA G1 or G2 certification, WSIB coverage, and $2M general liability insurance. Gas appliance work in Ontario requires these credentials, and our team brings them on every dispatch. shield ### Manufacturer registration filed on your behalf Replacement parts installed during an emergency call carry the same manufacturer parts coverage as parts installed on a planned installation. Parts and workmanship are covered, and we register equipment warranties on your behalf. ## How Best HVAC Toronto compares | Feature | Typical provider | Best HVAC Toronto | | --- | --- | --- | | Emergency response time | Same-day or next-day booking | 2-hour response, 24/7 | | Who attends the call | On-call junior technician | TSSA G1/G2 certified technician | | Parts availability | Diagnose now, return with the part | Common parts stocked on every van | | Quote before work | Verbal estimate on site | Written fixed price in CAD before we start | | Warranty handling | Homeowner registers the equipment | Manufacturer registration filed by us | How it works ## How does our emergency furnace service work? 1. 1call ### Call us, day or night Call 647-254-4113 and describe what the furnace is doing. No-heat calls receive priority dispatch, and our team targets arrival within two hours across the GTA, including weekends and holidays. 2. 2search ### Full diagnosis on arrival Our technicians check the hot surface igniter, flame sensor, pressure switch, draft inducer, blower motor, and gas pressure, then run a combustion analysis to identify the exact fault before touching anything. 3. 3receipt\_long ### Written quote before any work You receive the diagnosis and a fixed written price in CAD before any repair begins. Emergency and after-hours rates are disclosed up front. No surprises when the invoice arrives. 4. 4verified ### Repair and restore heat Most emergency repairs are completed on the first visit because common furnace parts are stocked on every van. We verify combustion, temperature rise, and CO readings before leaving. ## Not sure what your emergency furnace situation needs? Get a straight answer and a written price, with the numbers to back it up. No pressure, no scare tactics. call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Book Online [/contact/ →](/contact/) Our work ## Recent emergency furnace projects Click any image to enlarge. Reviews ## What customers say about our emergency furnace work starstarstarstarstar4.9 out of 5 from 150+ customer reviews star star star star star > No heat on a Sunday in January. A technician arrived within a couple of hours, replaced the igniter, and didn't charge a fortune for the weekend call. DDenise O.Brampton star star star star star > Replaced our 18-year-old furnace with a high-efficiency unit and walked us through the Ontario rebates. Written quote up front, no hidden fees, and the crew left the mechanical room cleaner than they found it. MMichael T.Etobicoke star star star star star > Enbridge red-tagged our furnace on a Friday night and shut off the gas. A technician was out within two hours, found the cracked heat exchanger, and had us re-certified and heating again the next morning. Calm, clear, and no scare tactics. PPriya S.North York FAQ ## Emergency Furnace questions, answered ### How quickly can you respond to a no-heat emergency in Toronto? expand\_more Our target is two hours across Toronto and the GTA, 24 hours a day, including weekends and holidays. No-heat calls are dispatched immediately. Call 647-254-4113 any time and our team will confirm the arrival window before hanging up. ### What does an emergency furnace diagnostic cost? expand\_more The diagnostic is $150 and is applied to the repair if you proceed. Most emergency repairs land between $250 and $500 CAD including parts. Weekend and after-hours calls are slightly higher, and we disclose the exact rate in writing before starting any work. ### What are the most common reasons a furnace stops heating in winter? expand\_more The most common causes are a failed hot surface igniter, a dirty or failed flame sensor, a blocked or disconnected pressure switch hose, a tripped limit switch from a clogged filter, and a failing draft inducer motor. Our technicians check all of these on every emergency call. ### Do you carry furnace parts on the van for same-day repairs? expand\_more Yes. Hot surface igniters, flame sensors, pressure switches, capacitors, limit switches, and common blower motor components are stocked on every service vehicle. That is why most of our emergency calls are resolved on the first visit rather than requiring a second appointment. ### How do I know whether my furnace needs repair or full replacement? expand\_more Age and repair cost are the main guides. Under 10 years old with a single component failure, repair is usually the right call. Over 15 years old with a major failure such as a heat exchanger or inducer motor, replacement is often better value. Our technicians show you both numbers in writing before you decide. ### Are your weekend and overnight rates higher than regular rates? expand\_more Yes, slightly. Weekend and after-hours calls carry a higher rate than weekday daytime service. We tell you the exact rate before work begins, so there is no surprise on the invoice. The $150 diagnostic applies to the repair regardless of when you call. ### Do you service all furnace brands during emergency calls? expand\_more Yes. Our TSSA-certified team services all major furnace brands, including Lennox, Carrier, Trane, Bosch, Napoleon, and York, along with other brands commonly installed in Toronto and GTA homes. ### What should I do while waiting for the technician to arrive? expand\_more Check the furnace filter: a completely blocked filter can trigger an over-temperature safety cutout. Check whether the circuit breaker for the furnace has tripped. Make sure the thermostat is set to heat and the setpoint is above the current room temperature. If you smell gas, leave the house immediately and call Enbridge's 24-hour emergency line before calling anyone else. ## Related services local\_fire\_departmentFurnace Installation & RepairHigh-efficiency furnace installs and same-day diagnostic repair across Toronto and the GTA. [/furnace-installation-repair/ →](/furnace-installation-repair/) gpp\_maybeEnbridge Red Tag Emergency ComplianceSame-day red tag inspection, repair, and re-certification so Enbridge can turn your gas back on. [/enbridge-red-tag-compliance/ →](/enbridge-red-tag-compliance/) device\_thermostatBoiler Installation & RepairCombi, condensing, and hydronic boiler installation, repair, and annual maintenance. [/boiler-installation-repair/ →](/boiler-installation-repair/) ![](/images/hero/hvac-technician-in-plain-grey-uniform-kneeling-bes.webp) 24/7 for gas emergencies, red tags, no-heat and no-AC ## Ready to book emergency furnace? Emergency furnace repair across Toronto and the GTA with 24/7 dispatch and 2-hour target response window for no-heat winter calls. Our TSSA G1 or G2 certified crew diagnoses cracked heat exchangers with borescope and combustion analyzer verification, ignition failures (hot surface igniter, flame sensor, spark ignition), blower motor faults, limit switch trips, pressure switch failures, gas valve issues, and control board diagnostics. Common failure parts stocked on every van: hot surface igniters, flame sensors, pressure switches, capacitors, limit switches, blower motor modules, and thermostats, so most emergency repairs are completed same-visit. Repair coverage includes Lennox, Carrier, Trane, Bosch, Napoleon, and York furnaces plus every major brand in the GTA market. Emergency dispatch pricing runs $250 to $400 depending on time of day, with the diagnostic fee applied to any authorized repair. Cold-snap dispatch capacity held for the coldest 10 days of the winter when call volume spikes. Written quotes before work begins, and manufacturer parts coverage registered on your behalf. call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Get a Free Estimate [/contact/ →](/contact/) - check\_circle Manufacturer registration filed on your behalf - check\_circle Written quotes before work starts - check\_circle TSSA G1/G2 certified, WSIB covered Cities we serve ## Emergency Furnace Repair Across the GTA 24/7 emergency furnace repair for no-heat calls, cracked heat exchanger verification, ignition failure, blower motor faults, and cold-snap dispatch across the GTA. ### Emergency Furnace Repair in North York City of Toronto [Emergency Furnace Repair in North York →](/emergency-furnace-repair/north-york/) ### Emergency Furnace Repair in Etobicoke City of Toronto [Emergency Furnace Repair in Etobicoke →](/emergency-furnace-repair/etobicoke/) ### Emergency Furnace Repair in Scarborough City of Toronto [Emergency Furnace Repair in Scarborough →](/emergency-furnace-repair/scarborough/) ### Emergency Furnace Repair in Vaughan City of Vaughan [Emergency Furnace Repair in Vaughan →](/emergency-furnace-repair/vaughan/) ### Emergency Furnace Repair in Markham City of Markham [Emergency Furnace Repair in Markham →](/emergency-furnace-repair/markham/) ### Emergency Furnace Repair in Mississauga Peel Region [Emergency Furnace Repair in Mississauga →](/emergency-furnace-repair/mississauga/) ### Emergency Furnace Repair in Brampton Peel Region [Emergency Furnace Repair in Brampton →](/emergency-furnace-repair/brampton/) ### Emergency Furnace Repair in Richmond Hill City of Richmond Hill [Emergency Furnace Repair in Richmond Hill →](/emergency-furnace-repair/richmond-hill/) ### Emergency Furnace Repair in East York City of Toronto [Emergency Furnace Repair in East York →](/emergency-furnace-repair/east-york/) ### Emergency Furnace Repair in Oakville Halton Region [Emergency Furnace Repair in Oakville →](/emergency-furnace-repair/oakville/) ### Emergency Furnace Repair in Burlington Halton Region [Emergency Furnace Repair in Burlington →](/emergency-furnace-repair/burlington/) ### Emergency Furnace Repair in Ajax Town of Ajax [Emergency Furnace Repair in Ajax →](/emergency-furnace-repair/ajax/)