This winter, right before Christmas, my wife returned home to no heat. Thankfully it's been a mild winter but nonetheless I received a panicked phone call asking me what to do. When I got home, we called Atco Gas. She was concerned that it would take a long time but within a half hour of our phone call, there was a service technician at our door.
He promptly assessed the problem, fixed it, and explained everything to me along the way.