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TSSA-certified HVAC technician responding to a 24/7 emergency call at a Toronto residential property

Need Emergency HVAC in Toronto? 24/7 Dispatch Across the GTA

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24/7 emergency HVAC dispatch across Toronto and the GTA. No-heat, no-AC, gas leaks, red tag response, and cracked heat exchanger diagnostics. TSSA-certified.

  • TSSA G1/G2 certified
  • 20+ years experience
  • 2-Year Labour Warranty

From $150 — diagnostic; typical emergency repair $300-$800 CAD

  • 4.9 (150+ reviews)
  • TSSA G1/G2 Certified & $2M Insured
  • 2-Hour Emergency Response
  • 2-Year Labour Warranty

Common problems

Sound familiar?

No heat and the temperature inside is falling

A furnace failure in a Toronto winter cannot wait. Our TSSA-certified team holds a two-hour response window across the GTA, 24 hours a day, and restores heat before indoor temperatures reach dangerous levels.

AC failed during a summer heat wave

When your air conditioner stops working in July, comfort becomes a health risk. Our team dispatches the same day for no-AC emergencies, day or night, and carries common refrigerant and electrical parts on every van.

Gas smell, Enbridge red tag, or CO alarm

Gas leaks and red tag shutdowns require a TSSA-licensed technician to inspect and sign clearance before Enbridge can restore service. We respond immediately, any hour, across Toronto and the GTA.

When any HVAC system fails, one call covers it all

A heating or cooling failure, a gas smell, or an Enbridge red tag shutdown does not wait for business hours. Our TSSA-certified team holds a two-hour response window across Toronto and the Greater Toronto Area every day of the year, and the phone at 647-254-4113 is answered live, any hour. Whether your furnace stops working on a January night, your air conditioner quits during a July heat wave, or Enbridge has shut off your gas, our field crew is equipped to diagnose and repair all of it under one call.

This page covers every HVAC emergency we handle: no-heat calls in heating season, no-AC calls during summer, gas leaks and smell-of-gas situations, Enbridge red tag shutdowns, CO alarm activations, and cracked heat exchanger diagnoses. We hold overnight and weekend capacity specifically for these calls, because emergencies do not cluster between nine and five on a weekday.

Every emergency call starts the same way: you call, a live person answers, your situation is assessed, and the right technician is dispatched with the right equipment. Common parts for furnaces, air conditioners, and gas systems are stocked on every service vehicle, which is why most of our emergency calls are resolved on the first visit rather than requiring a callback for parts.

TSSA-certified HVAC technician diagnosing a residential system failure during a 24/7 emergency call in Toronto

No-heat emergencies in Toronto

A furnace failure on a cold Toronto night is the call we receive most often in heating season. Indoor temperatures in an unheated home or semi-detached can drop several degrees per hour, and frozen pipes become a real risk in basements and exterior walls within a few hours at minus fifteen or colder. Our team dispatches immediately, every day of the year, with a target arrival window of two hours across the GTA.

Common no-heat failures our technicians see every season: 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. All of these are within standard diagnostic scope, and igniters, flame sensors, and pressure switches are stocked on every van for same-visit repairs.

If the diagnosis shows that a furnace replacement is the better call, our TSSA-certified team can provide a written quote for a high-efficiency furnace installation during the same visit. Installations carry a 2-year labour warranty alongside 5 to 10 years of manufacturer coverage.

No-AC emergencies during summer heat waves

Toronto heat waves push indoor temperatures into dangerous territory for older adults and young children, and a failed air conditioner in that context is a genuine emergency. Our team responds to no-AC calls 24/7 during the cooling season with the same two-hour target response as heating calls.

Common causes of summer AC failures include a failed run capacitor on the condenser unit, a refrigerant leak that has finally depleted the charge, a failed condenser fan motor, or a frozen evaporator coil from restricted airflow. Capacitors and common refrigerant fittings are carried on the van. Refrigerant recovery and recharge require EPA-certified technicians, and our team holds that certification.

If a central AC system or ductless mini-split has reached the end of its useful life, our team can quote an air conditioning installation or replacement on the same call, giving you written options rather than only a repair bill.

Gas emergencies and Enbridge red tag response

A gas smell, a CO alarm activation, or an Enbridge red tag shutdown falls into a different category of urgency. For gas leaks or CO alarms, the first step is always to evacuate the property and call Enbridge’s 24-hour emergency line before calling us. Once the property is declared safe, our TSSA G1/G2 certified technicians handle the diagnosis, repair, and certification required to restore service.

An Enbridge red tag, whether Type A or Type B, cannot be cleared by the homeowner or by an unlicensed contractor. Under Ontario Regulation 215/01 and the CSA B149.1 gas code, only a technician holding a TSSA G1 or G2 certificate can correct the fault and sign the clearance documentation that lets Enbridge Gas restore service. Our team carries that licence on every dispatch. Most red tags we attend are cleared with gas restored within 24 hours of our first visit. Our Enbridge red tag compliance service covers the complete inspection, repair, and re-certification process.

If another company or a meter reader has told you that you have a cracked heat exchanger, we provide second opinions using a borescope camera and a calibrated combustion analyzer, so the decision to repair or replace is based on evidence rather than pressure.

What emergency HVAC service costs in Toronto

The diagnostic fee for any emergency call is $150, applied to the repair if you proceed. Most emergency repairs land between $300 and $800 CAD including parts, depending on the failure. Weekend and after-hours calls carry a slightly higher rate, and you will see the exact number in writing before our technicians start any work.

Single-component failures such as a capacitor, an igniter, a flame sensor, or a refrigerant recharge typically resolve in the $300 to $450 range. Larger components such as a blower motor, control board, condenser fan motor, or gas valve sit in the $500 to $800 range. If the repair cost approaches or exceeds the value of a replacement system, our technicians will present both options side by side with written prices in CAD, and the decision is yours.

There are no hidden fees. Nothing starts until you have agreed to a written quote.

24/7 HVAC emergency coverage across Toronto and the GTA

Our two-hour emergency response covers all of Toronto, including North York, Etobicoke, Scarborough, East York, and York, as well as the wider GTA: Mississauga, Brampton, Vaughan, Woodbridge, Maple, Thornhill, Markham, Richmond Hill, Aurora, Newmarket, Oakville, Burlington, Milton, and the Durham region including Ajax, Pickering, Whitby, and Oshawa.

Toronto’s older housing stock creates additional urgency around HVAC failures. Brick semis and detached homes in North York, Scarborough, and East York lose heat quickly once the furnace is off, and basements in those areas often have minimal insulation in the rim joist zone. Condo units with fan coils or forced-air systems present a different set of challenges, including tight mechanical rooms and building management access requirements. Our field crew is experienced working in all of these environments.

Whether your home is a semi in Scarborough, a condo in downtown Toronto, a bungalow in Etobicoke, or a detached house in Markham, the response window, the pricing model, and the technician credentials are the same. Overnight and weekend capacity is not reduced during peak demand periods such as cold snaps or summer heat events.

Call 647-254-4113 for HVAC emergency service anywhere in the GTA

Any hour, any HVAC emergency, across Toronto and the Greater Toronto Area. Call 647-254-4113 and our TSSA-certified team will be on site within two hours.

Transparent pricing

How much does 24/7 emergency cost in Toronto?

The $150 diagnostic fee is applied to the repair if you proceed. Written quote in CAD before any work begins. Weekend and after-hours rates disclosed upfront.

Written quote before any work begins. No hidden fees.

Emergency diagnostic

Applied to the repair if you proceed

Starting from $ 150 diagnostic; typical emergency repair $300-$800 CAD

  • Full no-heat, no-AC, or gas safety diagnosis
  • Combustion analysis and CO readings where applicable
  • Written findings before any work begins
  • 24/7 dispatch, live phone answer any hour
Get a quote
MOST COMMON

Diagnostic + common repair

Most emergency calls resolve here

Starting from $ 400 diagnostic; typical emergency repair $300-$800 CAD

  • Diagnostic fee included
  • Igniter, flame sensor, capacitor, or refrigerant recharge
  • Common parts stocked on every service van
  • 2-hour GTA response, 24/7
Get a quote

Diagnostic + major repair

Control board, blower motor, gas valve, or condenser fan

Starting from $ 800 diagnostic; typical emergency repair $300-$800 CAD

  • Diagnostic fee included
  • Major component replacement with written quote
  • Gas valve, inducer, board-level, or refrigerant repairs
  • All pricing in CAD, confirmed before work starts
Get a quote

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 or call 647-254-4113.

Financing available on approved credit, plus lease-to-own with zero down on qualifying installs.

Why us

Why choose Best HVAC Toronto for 24/7 emergency?

Two-hour emergency response, 24/7

Our TSSA-certified team holds a two-hour response window across Toronto and the GTA, every day of the year, including weekends, overnight, and Ontario statutory holidays. No-heat and gas calls are never told to wait until morning.

Live phone answer, never voicemail

When you call 647-254-4113 during an emergency, a live person answers and dispatches your call. We do not use an overnight voicemail system. If your furnace or AC fails at 2 AM, someone picks up and sends help.

All emergency types, one team

No-heat, no-AC, gas leaks, Enbridge red tags, cracked heat exchanger diagnosis, and CO alarms are all within our scope. You do not need to find a different contractor depending on which system has failed.

Parts on the van, first-visit fix

Hot surface igniters, flame sensors, capacitors, pressure switches, and common refrigerant items are stocked on every service vehicle, so most emergency calls close on the first visit rather than requiring a return trip for parts.

Transparent pricing in writing

The diagnostic starts at $150 and applies to the repair. Weekend and after-hours rates are slightly higher and disclosed in writing before any work starts. There are no hidden fees, and nothing begins until you agree to a written quote.

How Best HVAC Toronto compares

Feature Typical provider Best HVAC Toronto
Emergency response time Same-day or next morning 2-hour dispatch, 24/7
Phone answered overnight Voicemail until morning Live answer any hour
Emergency scope Heating only or cooling only No-heat, no-AC, gas leaks, red tag
Parts availability Diagnose now, return with the part Common parts stocked on every van
Quote before work Verbal estimate on site Fixed written price in CAD before we start

How it works

How does our 24/7 emergency service work?

  1. 1

    Call 647-254-4113 any time

    A live team member answers every call, day or night. Describe what is happening and which system is affected. No-heat and gas emergency calls receive immediate dispatch priority, with an arrival window confirmed before we hang up.

  2. 2

    TSSA-certified technician en route

    Our team targets arrival within two hours across Toronto and the GTA, including overnight and weekend calls. The technician arrives with the diagnostic equipment and the common repair parts for your type of emergency.

  3. 3

    Full diagnosis and written quote

    Our technician runs a complete diagnosis, explains the fault in plain language, and presents a fixed written price in CAD before any repair begins. Weekend and after-hours rates are stated at this point, not revealed on the invoice.

  4. 4

    Repair and restore your system

    Common parts are stocked on every van, so most emergency repairs are completed on the first visit. We verify operation and safety before leaving, and all repairs carry a 2-year labour warranty.

Not sure what your 24/7 emergency situation needs?

Get a straight answer and a written price, with the numbers to back it up. No pressure, no scare tactics.

Our work

Recent 24/7 emergency projects

Click any image to enlarge.

Reviews

What customers say about our 24/7 emergency work

4.9 out of 5 from 150+ customer reviews

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

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

Our AC died during the July heat wave. They came out same day, diagnosed a refrigerant issue, and had us cool again fast. Honest about repair versus replace, and they didn't push us into a new system.

SSandra L.Scarborough

FAQ

24/7 Emergency questions, answered

What counts as a 24/7 HVAC emergency in Toronto?

Any situation that makes your home unsafe or unliveable qualifies: a furnace failure leaving indoor temperatures dropping, an AC failure during extreme summer heat, a gas smell or confirmed gas leak, an Enbridge red tag gas shutdown, a CO alarm activation, or a cracked heat exchanger diagnosis requiring immediate action.

How fast can your team respond to an emergency call?

Our target is two hours across Toronto and the GTA, 24 hours a day, every day of the year. No-heat and gas emergency calls are dispatched immediately. Call 647-254-4113 and our team will confirm your arrival window before hanging up.

What does a 24/7 HVAC emergency callout cost in Toronto?

The diagnostic starts at $150 and is applied to the repair if you proceed. Most emergency repairs land between $300 and $800 CAD including parts. Weekend and after-hours rates are slightly higher and disclosed in writing before any work begins. All pricing is in CAD with no hidden fees.

Is your emergency phone line answered live, or does it go to voicemail?

It is answered live, any hour. When you call 647-254-4113, a team member picks up, takes the details, and dispatches the appropriate technician. We do not route emergency calls to voicemail overnight or on weekends.

Do you handle gas leaks and Enbridge red tags as part of 24/7 service?

Yes. Gas leaks, Enbridge Type A and Type B red tag shutdowns, CO alarms, and cracked heat exchanger diagnoses are all within our 24/7 scope. Our TSSA G1/G2 certified technicians can sign the clearance required to restore gas service, so you do not need a second visit from a more senior technician.

What should I do while waiting for the technician to arrive?

For a no-heat call: check the furnace filter and circuit breaker, and confirm the thermostat is set to heat. For a gas smell: leave the property immediately, call Enbridge's 24-hour emergency line, and then call us. For a no-AC call: close blinds on sun-facing windows and move to the coolest room. In all cases, call 647-254-4113 first.

Are emergency rates higher on weekends and overnight?

Yes, slightly. Weekend and after-hours calls carry a higher rate than weekday daytime service. The exact rate is disclosed to you in writing before any work begins, so the invoice never surprises you. The $150 diagnostic applies to the repair regardless of when you call.

Which areas of Toronto and the GTA do you cover for 24/7 emergencies?

We cover all of Toronto, including North York, Etobicoke, Scarborough, East York, and York, as well as Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Aurora, Newmarket, Oakville, Burlington, Milton, Ajax, Pickering, Whitby, and Oshawa. Emergency response is available anywhere in that area within approximately two hours.

24/7 for gas emergencies, red tags, no-heat and no-AC

Ready to book 24/7 emergency?

24/7 emergency HVAC dispatch across Toronto and the GTA. No-heat, no-AC, gas leaks, red tag response, and cracked heat exchanger diagnostics. TSSA-certified. Written quotes before work begins, and a 2-year labour warranty.

  • 2-year labour warranty
  • Written quotes before work starts
  • TSSA G1/G2 certified, WSIB covered
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