Toronto Furnace Repair: Hire a TSSA Pro

Quick answer

For furnace repair or replacement in Toronto, hire a TSSA-registered fuels contractor that employs certified gas technicians. Look the company up on the TSSA website, get at least three detailed written estimates for a replacement, and never buy a furnace from a door-to-door seller you did not invite. Ask for the technician's certificate number before work starts.

When a furnace quits in a Toronto January, nobody wants to shop around for long. That urgency is exactly what unlicensed operators, sometimes called "trunk slammers", rely on. Whether you live in a semi in Leslieville, a bungalow in Scarborough or a townhouse in Etobicoke, the same Ontario rules protect you. This guide sets out the checks, the paperwork and the warning signs, using guidance from the Technical Standards and Safety Authority (TSSA) and Enbridge Gas.

Who is allowed to work on a furnace in Toronto?

In Toronto and across Ontario, furnaces and other fuel-burning appliances must be installed and serviced by TSSA-registered contractors who employ certified gas technicians. Whether you find a heating company on Cottlink, through a neighbour or online, check its TSSA registration before you book a service call or replacement.

TSSA explains that work by unregistered operators is not audited for safety compliance, which can expose households to serious risks such as carbon monoxide. TSSA's online "Look up a fuels contractor" tool lets you search a company by name, reference number, city or postal code. Note that the listed city is only the contractor's main office, so a firm based in Mississauga or Vaughan may still serve Toronto.

How do I check a Toronto HVAC contractor's credentials?

To check a Toronto HVAC contractor, search the company in TSSA's fuels contractor lookup, ask for the gas technician's certificate number, confirm liability insurance and WSIB coverage, and ask for references. A Cottlink profile helps you find and contact Toronto contractors, but credentials should always be confirmed with the official sources.

Enbridge Gas, which does not sell or repair furnaces itself, suggests your natural gas contractor should have a TSSA registration number, technicians licensed with a provincial certificate number, public liability and property damage insurance, and a certificate of good standing from the Workplace Safety and Insurance Board (WSIB). The Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) is another place to look for contractors.

What should a furnace replacement quote in Toronto include?

A furnace replacement quote in Toronto should list the exact equipment with model numbers and efficiency rating, all labour, permits, removal of the old unit, warranty terms for parts and labour, a start date and the payment schedule. Cottlink suggests comparing at least three written quotes, as Enbridge Gas recommends.

• Equipment: brand, model number, quantity and energy rating.
• Scope: venting, ductwork changes, thermostat and any electrical work.
• Permits: who arranges them.
• Warranty: both the manufacturer's equipment warranty and the contractor's labour warranty.
• Proof: licence and certification details, and insurance information.
• Payment: deposit, stages and final payment.

Legitimate contractors rarely quote a full replacement over the phone without seeing the job, and they seldom demand a large cash advance.

What are the red flags when hiring for furnace work in Toronto?

Red flags for furnace work in Toronto include uninvited door-to-door furnace or water heater sales, "government-approved" rebate pitches you cannot verify, pressure to sign on the spot, phone quotes without a visit and large cash deposits. Cottlink advises checking any unexpected offer directly with the source before you agree.

Ontario's Consumer Protection Act prohibits selling furnaces, water heaters and similar products door to door unless you started the transaction. TSSA inspectors do not sell products or services and do not go door to door. If someone claims to be from TSSA and tries to sell you equipment, treat it as a scam. Report suspected fraudulent fuels workers to TSSA.

What should I do before a technician arrives in Toronto?

Before a heating technician arrives at your Toronto home, note what the furnace is doing, any error light or code, the thermostat setting, when the filter was last changed and the furnace brand and age. If you booked through Cottlink or elsewhere, have the company name and TSSA details ready to check at the door.

1. Check the thermostat batteries and settings, and that the furnace switch is on.
2. Look at the filter. A clogged filter can cause shutdowns.
3. Clear space around the furnace and the route to it.
4. Make sure your carbon monoxide alarms work.

If the furnace is completely silent, note whether the breaker or the furnace power switch has tripped. That small detail can shorten a call-out, and it helps the technician tell an electrical fault from a gas or ignition problem.

Can I find a Toronto heating contractor on Cottlink?

Cottlink is open to Toronto businesses and its listings there are only just starting, so you may find few heating contractors today. Use Cottlink profiles to see services, hours and phone numbers as they appear, and always confirm TSSA registration and insurance before you book any Toronto contractor.

Frequently asked questions

Does Enbridge Gas repair furnaces?

No. Enbridge Gas says it does not sell or repair furnaces, so you need an HVAC contractor.

How many quotes should I get for a new furnace?

Enbridge Gas suggests at least three written estimates from different contractors.

Can a TSSA inspector sell me a furnace?

No. TSSA inspectors do not sell products or services or go door to door.

Does a Cottlink listing prove TSSA registration?

No. Always check registration yourself using the TSSA lookup tool.

I run an HVAC company in Toronto. Can I list?

Yes. Basic listings are free.

Own a business here? Claim your free Cottlink listing. Not on Cottlink yet? You can add your business for free. Questions: listings@cottlink.com or 0704625414 (+254 704 625 414 from outside Kenya).