My service person was very communicative and on time. He visited for our seasonal tune up. When he left, our thermostat and furnace weren’t syncing anymore. Really, though, this wasn’t an issue, because he answered his personal phone when I called him; and after we couldn’t diagnose the problem together over the phone, he drove 45 minutes back to our house from his. Even at the end of his work day. He fixed the minor oversight he had, and everything was smooth after that. I appreciated his extended efforts to come back out and handle the issue right away. My only recommendation for this company would be this: Have some sort of schematics that show your customer the improvement your tune up made at the time of your visit. (What was my furnace doing before, what is it doing better now?) They have their computer system that finds codes and tunes air flow and all these things, but I bet I’m not the only person who would like to see ‘proof’ that my money is worth these tune ups. For all I know they’re just changing an air filter down there, which I can do myself. Nothing negative here, though. Just a recommendation. Thanks Holiday Heating.