My hot water heater broke down sometime Friday night. Without hot water on Saturday morning, I called Lou, he came out, drained the tank, and arranged for the replacement. The replacement happened Monday morning. As always, Lou was totally reliable, honest, very prompt, cleaned up after the job, took care of everything. Lou installed my a/c a few years ago and has done various types of duct work as well as regular furnace servicing. I can count on him and can trust him. He has my highest recommendation.