I just set up a service contract to do annual maintenance calls with Wm. Henderson Plumbing, Heating & Cooling Inc. The customer service was amazing! I could not believe how quickly they responded to me, especially since it was my first time calling in. They answered all of my questions and seemed very thorough over the phone. We are already scheduled for our Spring visit in May. So far, so good. So, I definitely would recommend Wm. Henderson Plumbing, Heating & Cooling Inc.