CITY-ENERGY is your local Heating & Cooling Company in Thornhill, Markham Ontario. We are here to help you with new furnace and A/C installations, air conditioning and furnace repair, HVAC maintenance services including furnace, air conditioner, fireplace, BBQ, gas piping repair and gas line installation, water heaters, annual inspection, pre-season preparation for residential and commercial properties. Call our HVAC specialists today. For our customers’ peace of mind, we offer valuable money-saving services and maintenance contracts.