Common HVAC Problems We Repair
- No heat or insufficient heating from your furnace or boiler
- AC blowing warm air or not cooling the space
- Short cycling, frequent on/off cycling or system won't start
- Strange noises, rattling or buzzing from the unit
- Frozen evaporator coils or refrigerant leaks
- Uneven temperatures and poor airflow between rooms
- Thermostat and control board failures
Our HVAC Repair Process
- We start with a thorough system inspection to find the root cause — not just the symptom. You get a clear explanation of what's wrong and an upfront price before any work begins. Once approved, our technicians carry common parts on the truck so most repairs are completed the same visit. Every repair is tested, and we back our work with a service warranty.
Signs You Need HVAC Repair
- Rising energy bills, uneven rooms, unusual sounds or smells, and a system that runs constantly are all warning signs. If your equipment is over 10–15 years old and repairs are adding up, we'll also give you an honest comparison between repairing and replacing so you can choose what makes the most financial sense.
Related Services
Air Conditioning Repair
A broken air conditioner on a hot Ontario day is an emergency. Toronto Mechanical repairs central air, ductless mini-splits, and commercial cooling units fast — with upfront pricing and technicians who arrive ready to fix the problem the same visit.
Learn moreFurnace Repair
No heat in an Ontario winter is an emergency. Toronto Mechanical repairs gas furnaces, electric furnaces, boilers and heat pumps fast — with licensed, insured technicians and upfront pricing so you know the cost before we start.
Learn moreCommercial HVAC
Toronto Mechanical designs, installs, repairs and maintains commercial heating and cooling systems for offices, retail, restaurants, warehouses and light industrial spaces across Ontario. From rooftop units to make-up air, we keep your business comfortable and compliant.
Learn moreFrequently Asked Questions
Answers to common questions about our hvac repair services.