HVAC Services Toronto & GTA | Boilers & Ductless

HVAC services in Toronto and the Greater Toronto Area from Bison Air Inc., a TSSA-certified heating and cooling contractor. We install, repair and maintain boilers, ductless and central heat pumps, furnaces, air conditioners, water heaters and commercial rooftop units for homes, businesses and builders. Our three specialties are boilers and hydronic heating, cold-climate ductless heat pumps (Mitsubishi Electric, Panasonic and Bosch) and commercial rooftop units.

✓ TSSA-certified gas technicians, WSIB, licensed and insured
✓ 5.0 on Google from 80+ reviews, and ranked #1 of 18 HVAC contractors in Vaughan by ProScore
✓ Authorized dealer for Mitsubishi Electric, Panasonic, Bosch, AirQuest and Amana
✓ Installed prices published on every product page
✓ Registered HRSP rebate contractor for heat pump rebates
✓ Open 7 days a week, with a 1-year labour warranty on every installation

⭐ Our Three Specialties

NTI TRX Series II condensing boiler installed by Bison Air in Toronto

🔥 Boilers & Hydronic Heating

High-efficiency and combi boilers for Toronto homes with radiators or in-floor heat, mostly NTI, plus Navien and Viessmann. Also radiant floors, snow melt and hydronic air handlers.

Boiler installation →

Ductless heat pump outdoor units on wall brackets at a brick house in Toronto, installed by Bison Air

❄️ Ductless Heat Pumps

Cold-climate Mitsubishi, Panasonic and Bosch systems that heat through Ontario winters, single-zone or multi-zone. A clean way to add AC to a radiator home.

Ductless heat pump installation →

Rooftop HVAC unit lifted by crane onto a commercial roof by Bison Air in the GTA

🏢 Rooftop Units & Commercial

Rooftop unit replacement by crane for plazas, restaurants and offices, plus commercial boilers, VRF and multi-unit buildings. Authorized AirQuest dealer.

Rooftop unit installation →

🛠️ All HVAC Services

Everything we install and service, grouped the same way as our menu:

Repair, Maintenance & Gas

📸 Recent Work Across Toronto

NTI condensing boiler with indirect water heater installed by Bison Air in Toronto — Condensing boiler with indirect water heater.

Mitsubishi ductless heat pump outdoor unit on a wall bracket, installed by Bison Air in Toronto — Mitsubishi ductless on a wall bracket.

Three NTI boilers installed as a commercial cascade by Bison Air in Toronto — Commercial boiler cascade, Toronto.

New rooftop unit set on its curb by Bison Air on a commercial roof in the GTA — New rooftop unit set on the curb.

More projects, including custom homes and multiplexes, are on our project blog.

🏷️ Brands We Install

Equipment	Brands
Ductless & central heat pumps	Mitsubishi Electric, Panasonic, Bosch, AirQuest
Boilers & combi boilers	NTI (most installed), Navien, Viessmann
Furnaces & air conditioners	AirQuest, Amana, Lennox, Goodman
Rooftop units	AirQuest RGV (authorized dealer); we also service other brands, including Lennox
Water heaters	Navien, Rinnai, NTI, Viessmann

🏙️ HVAC Services Across Toronto

We work in homes and businesses across the city: North York, East York, Scarborough, Etobicoke, Willowdale, Thornhill and downtown Toronto. Many Toronto homes are older houses heated by a boiler and radiators, so a lot of our work is boiler replacement and adding ductless heat pumps for cooling and efficient heating. North of the city we serve all of York Region, plus Peel, Durham, Halton and south Simcoe. See the full list under Areas We Serve below.

💲 Prices, Rebates & Financing

✓ Prices: every product page shows the installed price, including standard installation. Boiler price ranges are on our boiler replacement cost page.
✓ Rebates: eligible heat pumps qualify for Ontario's Home Renovation Savings program; homes heated by oil may qualify for the Oil to Heat Pump Program. Boilers, furnaces and AC do not get these rebates. Heat pump rebates
✓ Financing: monthly payments through Financeit, on approved credit. HVAC financing

📐 How It Works

1. Call or send a request

Tell us what you need. We answer 7 days a week.

2. Site visit

We look at the existing system, the space, venting, gas and electrical.

3. Sizing

Heat-loss and load calculations, not a guess based on the old unit.

4. Written quote

Model, scope, price and timeline, plus the rebate check.

5. Installation

TSSA-certified technicians, permits where required, clean job site.

6. Startup & walkthrough

Commissioning, testing and a walkthrough of the new system.

🏆 Why Choose Bison Air

✓ TSSA Certified HVAC Contractor, WSIB, licensed and insured
✓ Specialists in boilers, ductless heat pumps and rooftop units
✓ Authorized dealer for Mitsubishi Electric, Panasonic, Bosch, AirQuest and Amana
✓ Registered HRSP heat pump rebate contractor
✓ 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
✓ Residential, commercial and new construction under one contractor