For all your heating and cooling needs, from heat pumps and air conditioning units, to service and repairs, look no further than D Gillis Ventilation & Air Conditioning Ltd. In the climate control business since 1997, our trusted team of technicians will work with you to pick out the perfect HVAC system for your home or business. We take many factors into account, like size and layout of your space, to make sure your system is operating at peak efficiency. All our products have manufacturer warranties to ensure you won’t be left out in the cold. Give us an idea of your project by filling out the eform on this page or give us a call!