250-597-8097 info@subzeroheat.ca

Sub Zero Heating & Cooling Your #1 Choice for HVAC Heating and Cooling Systems

Monday – Friday 8 am to 4:30 pm Closed Saturday & Sunday

For Residential to Light Commercial Installations

Monday – Friday 8 am to 4:30 pm Closed Saturday & Sunday

Maintenance, Replacement & Repairs

Monday – Friday 8 am to 4:30 pm Closed Saturday & Sunday

Duncan’s Leading Heating & Air Conditioning Company

Offering trusted professional HVAC system maintenance, installation, replacement and repairs.



Heating & Cooling Hot Water Heaters


Cooling Hot Water Heaters


 Hot Water Heaters

Sub Zero Heating Cooling HVAC Heat Pump Specialists

Supply and install:

  • Heat pumps and air conditioning systems
    both conventional and mini split
  • Gas fired furnaces, boilers and water heater
    (tank and tankless)
  • In-floor hydronic radiant heating systems
    including gas, electric and “air to water” heat pump
  • Heating systems into new construction & retro-fit including duct work, radiant in-floor, house ventilation, kitchen range venting, bathroom & dryer exhaust venting
  • Heat Recovery Ventilators (HRV’s) and indoor air quality systems Ultra Violet sanitizing

We Service:

  • All makes of heat pumps
  • Air conditioning systems up to 240,000 btu’s (20 tons)
  • Gas fired heating appliances and equipment up to
    750,000 btu’s (220 kW)

Rebates, Incentives and Savings


Here at Sub Zero Heating, our goal is to offer the highest quality of HVAC heating system installation and maintenance support. Whether you own a single family home or a larger commercial building, we’re here to design a heating solution that will best serve your needs in the years to come. Most importantly, if you are looking for a professional, Red Seal HVAC Technician, we can install, maintain and repair all your heating, refrigeration and Air/Co (air conditioning) systems.

Sub Zero Heating and Cooling Service Areas


We are your go to place for all of your HVAC (Heating & Cooling) equipment maintenance needs. Above all that, we bring over twenty years of experience and professionalism to every project. As a result, you can be confident in trusting our technicians to insure your system is running at it’s best at all times.

Don’t forget to book your annual maintenance and safety check up. It’s always a good idea to have one of our Red Seal Techs look over your system before the start of another season. Keeping your system operating safely and efficiently helps you avoid any unexpected and expensive repairs.

Sub Zero Heating and Cooling Service Areas


Should you need an air conditioner or heat pump replacement or repairs to your existing single unit or an entire office building system, our highly trained and experienced Red Seal contractors can get the job done. Specializing in residential and light commercial AC units.

Sub Zero Heating and Cooling Service Areas

Heating and Air Conditioning Specialists

Sub Zero Heating and Cooling is a family owned & operated local business!

Business Hours

Monday – Friday

8:00am – 4:30pm

Saturday & Sunday Closed

Evening and Weekend site visits by appointment

Installations & Repairs Red Seal Certified

Call for your free quote today!


When quality counts!

Sub Zero Heating uses Daikin Brands
Venmar Brands are Sub Zero Heating and Cooling first choice
American Standard Brands
Navien Brands


6167 Lane Rd, Duncan BC, V9L4E2

250 597 8097


Serving the HVAC needs of Vancouver Island and the Gulf Island communities with honesty and integrity.