New construction HVAC in Toronto and the GTA for custom homes, multiplexes and residential developments. We work from your drawings and stay with the project from rough-in to startup: ductwork, hydronic and radiant piping, heat pumps, furnaces and boilers, ventilation, gas lines and water heating, all from one contractor.
- ✓ Designed from your drawings: loads, duct layout and equipment sizing
- ✓ One contractor for HVAC, hydronics, ventilation, gas piping and hot water
- ✓ Coordinated with your schedule, framers and other trades
- ✓ TSSA-certified gas technicians, licensed and insured
- ✓ Ready for inspection at rough-in and final
From Rough-In to Startup




Recent New Construction Projects
Custom Home, Willowdale
AirQuest furnace and heat pump, custom sheet-metal ductwork with fire dampers, Lifebreath HRV and Rinnai tankless.
Custom Home, Markham
NTI boiler with radiant floor heating, AirQuest hybrid furnace and heat pump, Panasonic ERV.
Multiplex, East York
Mitsubishi Hyper-Heat ducted heat pumps, VanEE HRVs, twin Rinnai tankless and four gas meters.
More build photos are on our New Construction Project Blog.
🧱 Who We Build For
Custom Homes
Boilers and radiant floors, heat pumps, custom ductwork and finished mechanical rooms.
Multiplexes & Multi-Unit
Duplex to low-rise apartments, with heating, cooling and ventilation planned unit by unit.
Builders & Developers
One HVAC partner from drawings to handover, on your schedule.
Systems We Install in New Builds
Heat Pumps & Hybrid Systems
Cold-climate heat pumps, ducted or ductless, alone or with a furnace.
Boilers & Radiant Floors
Condensing boilers with radiant floor heating and indirect hot water.
Tankless Water Heaters
Rinnai and other tankless systems sized for the building.
📐 How a New Construction Project Works
1. Drawings and quote
We review your plans and HVAC design and give you a clear written quote.
2. Rough-in
Ductwork, piping, gas lines and venting at framing stage, coordinated with your trades.
3. Inspections
Our work is ready for the HVAC and gas inspections at each stage.
4. Equipment install
Furnaces, heat pumps, boilers, HRVs and water heaters set and connected.
5. Startup and handover
Startup, balancing and a walkthrough for the owner or builder.
Why Builders Choose Bison Air
- ✓ TSSA Certified HVAC Contractor
- ✓ Fully Licensed & Insured HVAC Technicians
- ✓ Registered HRSP Heat Pump Rebate Contractor
- ✓ Custom sheet-metal fabrication on site
- ✓ Clean, organized installations built to be serviced
- ✓ 1-year labour warranty on every installation
Related
- ✓ Custom Home HVAC
- ✓ Multi-Unit Residential HVAC
- ✓ HVAC Contractor for Builders
- ✓ Commercial HVAC Services
- ✓ VRF Systems
- ✓ Ductwork Installation
- ✓ Radiant Floor Heating
- ✓ HVAC Financing
Areas We Serve
New construction HVAC 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 New Build?
Send us your drawings and schedule. We will review the plans and give you a clear written quote for the HVAC, gas and hot water.
Call 416-652-4323 Send Us Your Drawings
Serving Toronto & the GTA
