When your furnace quits in the middle of a Toronto January, you need a technician who shows up fast, finds the real problem and fixes it right the first time. Our TSSA-licensed gas technicians repair every major brand — Lennox, Carrier, Goodman, Trane, Rheem, York, Amana and more — and our service vans carry the most common parts so most repairs are finished on the first visit.
We start every call with a full diagnostic: checking the igniter, flame sensor, pressure switches, inducer motor, blower, control board, gas valve and venting. You get a clear explanation of what failed, why it failed, and a written, upfront price before any work begins. No surprise fees, no pressure to replace a furnace that can be repaired.

Signs you need furnace repair
- Furnace runs but blows cold air
- Short cycling or frequent on/off
- Loud banging, squealing or rattling
- Error codes or flashing lights on the board
- Rising gas bills without a change in usage
- Yellow or flickering burner flame
How our furnace repair service works
- 1Call or book online — we confirm a same-day arrival window
- 2Full safety and performance diagnostic, including carbon monoxide check
- 3Upfront, written repair quote with options
- 4Repair with quality OEM parts and a test run
- 590-day labour warranty on every repair
Why choose Toronto Heating & Cooling
We're a Toronto-based team, not a call centre. Our gas technicians are TSSA-licensed, electrical work meets ESA requirements, we're HRAI members and fully covered by WSIB and liability insurance. You get a written price before we start, clean and respectful work in your home, and a warranty that stands behind every job — 90 days on repair labour and up to 10 years on new equipment when registered.
We serve homes and condos across Toronto, North York, Scarborough, Etobicoke, East York, York, Mississauga, Vaughan and Markham. Call 647-371-0340 for same-day service, or request a quote and we'll get back to you quickly.
Frequently asked questions
How much does furnace repair cost in Toronto?
Most common repairs such as a flame sensor, igniter or pressure switch fall in the $180–$450 range including parts and labour. Larger components like inducer motors or control boards cost more. You always get the price before we start.
Should I repair or replace my furnace?
If your furnace is under 12 years old and the repair is less than a third of replacement cost, repair usually makes sense. We'll give you an honest recommendation either way.