We secured the firm ARS Universal Heating through our local Home Depot. ARS called the day of the scheduled service to let us know when the technician would arrive. The technician then called and again let us know his ETA. Lawrence V, the technician, was very professional and extremely personable. He was able to locate the problem in our heating system (as being the thermostat) and provided us several options for replacement. Lawrence articulated the differences in the options and we selected the best choice for us. He completed the job within less than an hour. He was efficient and left no mess behind! The price was comparable to what we'd have paid to install it ourselves - with none of the hassle! Thanks so much for a great experience!