They were quick to schedule the appointment. We had a heater that was not working properly. I had a different company come look at it (BIG WELL KNOWN COMPANY) that had quoted us a whole new system saying that the mother board was damaged and beyond repair. The quote was several thousand dollars. Vision air cleaned our flame detector and for about $100.00 our system is working like a champ for about a month. Reputable, trustworthy and would recommend to anyone!!