I have used A1 Heating St. Albert Ltd. for the last 15 years or so. Their employees do excellent work, and are friendly people, who show up on time. They were here last to do some repair work on a furnace for me. As usual, they did a good job. I have used A1 Heating for so long, that I have come to know the owner quite well. I really appreciate their quick response to my calls, whether for an emergency or not. They are a good company, and I am happy to give them the highest possible rating!