Commercial HVAC services in Toronto and the GTA for property owners, property managers, builders and business owners. We install and service rooftop units, commercial boilers, VRF systems and the full mechanical scope for multiplexes and new buildings, with one team from site visit to startup.

  • ✓ TSSA-certified gas technicians, licensed and insured
  • ✓ One contractor for heating, cooling, ventilation, gas and hot water
  • ✓ Sized from a load calculation for the whole building
  • ✓ Work scheduled around your tenants or your construction schedule
  • ✓ 1-year labour warranty on every installation

🏢 Our Commercial HVAC Services

🏗️ Commercial HVAC Installation

Complete heating, cooling and ventilation systems for offices, retail and mixed-use buildings.

Commercial HVAC installation →

🏬 Rooftop Units (RTUs)

Rooftop unit replacement by crane, new installations and service on existing units.

Rooftop units →

🔥 Commercial Boilers

Condensing boilers and multi-boiler cascades from NTI and Navien for multiplexes and commercial buildings.

Commercial boilers →

❄️ VRF Systems

Variable refrigerant flow heating and cooling with independent control for each space.

VRF systems →

🏘️ Multi-Unit Residential

Separate heating, cooling, ventilation and hot water for each unit in multiplexes and small apartment buildings.

Multi-unit HVAC →

👷 Builders & New Construction

Full mechanical scope from rough-in to final for builders and developers.

HVAC for builders →

📋 Recent Commercial Projects

🏬 Rooftop Unit Replacement, Mississauga

Old York rooftop unit removed and a new AirQuest RGV037 gas/electric unit set by crane on a commercial plaza.

See the project →

🔥 Three-Boiler Cascade, Toronto

Three NTI TFTN condensing boilers installed as one cascade system for a commercial building.

See the project →

🏘️ Multiplex, East York

Mitsubishi Hyper-Heat ducted heat pumps, HRVs, tankless water heaters and four gas meters.

See the project →

⚖️ Which Commercial System Fits Your Building?

System Best for Heating Cooling
Rooftop unit (RTU) Plazas, retail, restaurants, single-storey commercial Gas or heat pump Yes
Commercial boiler Multiplexes, apartments, buildings with radiators or radiant floors Hot water (hydronic) Add separately
VRF system Offices and buildings with many rooms needing separate control Heat pump Yes
Separate system per unit Multiplexes where each unit pays its own bills Furnace, heat pump or boiler Yes

Not sure which fits? We look at the building, the existing equipment and how it is used, and recommend one system with a written price.

🏬 Buildings We Work On

  • ✓ Retail stores and commercial plazas
  • ✓ Restaurants and cafés
  • ✓ Office buildings
  • ✓ Warehouses
  • ✓ Medical clinics
  • ✓ Multiplexes and apartment buildings
  • ✓ Mixed-use buildings
  • ✓ New construction and infill builds

🧰 Full Mechanical Scope

📐 How We Handle a Commercial Project

1. Site visit

We review the building, the existing equipment and any drawings.

2. Design and sizing

Load calculation and a system recommendation for the building.

3. Written quote

A clear scope and price, with no surprises.

4. Scheduling

Shutdowns, crane lifts and work set around your tenants or trades.

5. Installation

Equipment set, piped, ducted, wired and connected to gas.

6. Startup and handover

Startup, testing and a walkthrough for you or your property manager.

📋 What Helps Us Quote Faster

  • ✓ Drawings or a floor plan, if you have them
  • ✓ Photos of the existing equipment and its nameplate
  • ✓ How the space is used and when it can be shut down
  • ✓ Site contact and roof or mechanical room access

🏆 Why Choose Bison Air for Commercial HVAC

  • ✓ TSSA Certified HVAC Contractor
  • ✓ Fully Licensed & Insured HVAC Technicians
  • ✓ Authorized AirQuest, Mitsubishi, Bosch, Panasonic and Amana dealer
  • ✓ One point of contact from quote to handover
  • ✓ Clean, organized installations built to be serviced
  • ✓ 1-year labour warranty on every installation

🔗 Related Services

📍 Areas We Serve

Commercial HVAC installation and service 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

🏢 Planning a Commercial HVAC Project?

Tell us about the building or send your drawings. We will visit and give you a written scope and price.

📞 Call 416-652-4323 Request a Quote

Serving Toronto & the GTA