HVAC maintenance in Toronto and the GTA. A yearly tune-up catches worn parts before they fail, keeps equipment running efficiently, and gives you the service records many manufacturer warranties ask for. Bison Air maintains furnaces, boilers, heat pumps, ductless systems, air conditioners and water heaters.
- ✓ TSSA-certified gas technicians
- ✓ Combustion and safety checks on gas equipment
- ✓ Service records for your warranty
- ✓ Book online
- ✓ All major brands
Equipment We Maintain


What a Tune-Up Includes
| System | What we check |
|---|---|
| Gas furnace | Burners, ignitor, flame sensor, heat exchanger inspection, venting, condensate drain, blower, filter, combustion and safety controls |
| Boiler | Combustion, heat exchanger, condensate trap and neutralizer, expansion tank, pressure, circulators, relief valve, venting |
| Heat pump and AC | Outdoor coil cleaning, refrigerant pressures, capacitor and contactor, electrical connections, indoor coil and drain, airflow |
| Ductless | Head filters and coil cleaning, blower wheel, drain line, outdoor coil, refrigerant pressures, error history |
| Tankless water heater | Descaling flush, inlet filter, venting, combustion, condensate |
| Tank water heater | Anode and sediment check, relief valve, venting and draft |
| HRV / ERV | Core and filter cleaning, balance check |
📅 When to Book
| Season | Service |
|---|---|
| Late summer to fall | Furnace, boiler, heat pump heating check, humidifier |
| Spring | Air conditioner, heat pump cooling check, ductless cleaning |
| Once a year, any time | Tankless flush, water heater check, HRV/ERV |
| Every 1 to 3 months (you) | Furnace filter; ductless head filters |
📄 Maintenance and Your Warranty
Many manufacturers require proof of regular professional maintenance before they honour a parts or heat exchanger warranty. Keep every service invoice. We leave a record of what was checked on each visit.
📅 Book a Visit
Call 416-652-4323 or book online in our HVAC service and maintenance section, and tell us which systems need a tune-up. We will confirm the price before the visit.
Something already not working? See HVAC repair.
Why Choose Bison Air
- ✓ TSSA Certified gas contractor, WSIB, licensed and insured
- ✓ We work on boilers, furnaces, heat pumps, ductless, AC and water heaters
- ✓ Straight answers: repair when it makes sense, replace when it does not
- ✓ Installed prices published online, no hidden fees
- ✓ 5.0 on Google from 80+ reviews; ProScore #1 in Vaughan
- ✓ 1-year labour warranty on every installation
- ✓ Financing available through Financeit
Related
- ✓ All HVAC Services
- ✓ HVAC Installation
- ✓ HVAC Repair
- ✓ Gas Line Installation
- ✓ Heating Services
- ✓ Cooling Services
- ✓ Heat Pump Services
- ✓ Water Heater Services
- ✓ Financing
- ✓ Contact Us
Areas We Serve
HVAC maintenance throughout Toronto and the GTA:
Toronto · North York · Scarborough · Etobicoke · Vaughan · Markham · Richmond Hill · Aurora · Newmarket · East Gwillimbury · King City · Stouffville · Mississauga · Brampton · Oakville · Milton · Burlington · Barrie · Innisfil · Orillia · Bradford · Keswick · Ajax · Pickering · Whitby · Oshawa · Orangeville
🧰 Book a Tune-Up
Tell us which systems you have. We will book them in one visit where we can.
Call 416-652-4323 Book a Visit
Serving Toronto & the GTA
