Our furnace has been giving us problems for a couple weeks. It seemed to shut off very quickly after turning on. Not heating up the house. I called A1 heating and a service technician came out to diagnose the problem. After looking at furnace he gave me a price to fix. The price didn't seem to expensive and he had the parts already on truck. An hour or so later the problem was solved. Three weeks later everything still warm and toasty. Thanks to a friendly technician.