I have been using A1 Heating St. Albert Ltd. for a number of years and I have always been happy with their work recommending them to others as the need arose. They recently lined up with a plumbing company. I called them to have my heating unit looked at, scheduled the appointment and when the technician arrived he was not the heating guy but the plumbing guy. I called them back and they sent out a heating guy. This has been my only complaint that they sent the wrong profession. Other than that I have always thought they did great work and have been happy with the service.