Be careful to ask for a tech that knows the whole system you are dealing with. We had a zone valve to replace, the tech they sent spent an hour with me only to disconnect the valve throw up his hands and tell me to call a plumber. A new thermostat was put in by him, which is something I could have done. We asked by a couple of phone calls if they could have the tech call the plumber we booked. We were assured both times it would happen. It didn't. The tech was very polite and professional, just not totally qualified to do the job we needed. When I called to get answers to the few questions I had. I was told by the tech I finally spoke to The zone valve was work that indeed could be done by R A Mechanical. When I asked why it wasn't done at the time of the house call. I got about a few seconds of silence and, "it's something I have not personally done". I am now waiting for a call back from one of the owners. who I was told by the tech are either Kevin or Allen.