Many older Toronto homes — especially in neighbourhoods like The Annex, Leslieville and York — rely on hot water or steam boilers. They deliver comfortable, even heat, but they need technicians who understand hydronics. Our licensed gas fitters repair conventional, high-efficiency condensing and combi boilers from Navien, Viessmann, Weil-McLain, IBC, Lochinvar and more.
We diagnose circulator pumps, zone valves, expansion tanks, pressure relief valves, ignition systems and control boards, and we bleed and balance radiator systems so every room heats evenly. If a boiler is beyond repair, we'll explain replacement options honestly.
Signs you need boiler repair
- Radiators cold or only partly warm
- Pressure gauge too high or too low
- Kettling, banging or gurgling noises
- Water leaking around the boiler
- Pilot light keeps going out
- No hot water from a combi boiler
How our boiler repair service works
- 1Fast appointment booking
- 2Combustion, pressure and safety check
- 3Upfront repair quote
- 4Repair and system bleed/balance
- 590-day labour warranty
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
Is a leaking boiler an emergency?
A small drip should be checked soon; significant leaking, a gas smell or no heat in winter is an emergency. Call us any time.
Do you service combi boilers?
Yes, we repair and maintain combi boilers that provide both heat and domestic hot water.