I highly recommend Titley Mechanical
I have been using Yan for years. He is alway friendly and prompt. This year my furnace was pumping out too much CO so Enbridge capped my furnace. As the furnace was old I decided to replace it instead of fix it. Ofcourse this happened in the winter! Yan answered my call immediately and was in the next day, early, ripping out the old furnace. If you want an honest individual, with competitive pricing and always with a smile on his face, then Yan is your guy.