Calgary Home Comfort, installed both Furnace and Air Conditioning in December 2018. He explained all the specifications and information on each of all the different type of units for both the Furnace and Air Conditioners. He worked in freezing conditions to get the furnace installed as quick as possilble. His after sales service is exceptional. He came to install new Filters in May 2019 and on the very same morning before he arrived, our Water Heater had leaked and had stopped working, there was no hot water. He said if we wanted to purchase a new Water Heater he would fit it that day. We purchased the Water Heater and within hours it was fitted and working.