Welcome to Lazzaro Gas. We are a Residential and Commercial Heating, Ventilation, and Air Conditioning company thats services The Durham Region and GTA areas. No matter the time or situation you can rely on us to have your back, all weather conditions we are here to keep you comfortable! Dont hesitate to reach out for any and all of your Hvac needs! No project is to big or too small. From bbq lines to commercial boiler repairs we can do it all! more... See more text