Oasis Heating & Air Conditioning Inc. is proud to offer complete HVAC services to customers across the GTA, Durham Region and surrounding areas. Contact us for quick and convenient solutions at excellent rates. When it comes to HVAC systems, Oasis Heating & Air Conditioning Inc . brings our best-in-class services to Pickering, Ajax, Durham Region, GTA and Scarborough. Our client base includes local homeowners, private landlords, and property managers.