Whether your unit is electric, gas, duel heat, or a boiler, we have the tools and knowledge to get the job done right the first time. Our technicians will perform a complete tune up to ensure that your furnace will stay in good condition for a longer period of time, while using less energy. Air Conditioning Repair, Maintenance, and Installation Peak summer temperatures in southern Ontario can be unbearable without a working air conditioning unit. We service and maintain all makes and models, and ensure that your unit is back up and running in no time. Furnace Installation Newer furnaces work more efficiently, and with regular maintenance last longer asn require fewer repairs. CDN HVAC will work with you from start to finish to ensure that you get the right furnace for your needs and budget. more... See more text