I will never called Marvin again. He sent his associate to repair my AC. All it needed was the AC capacitor replaced, which cost no more than $20. Marvin and associate decided to charge me $200??? I still haven't received a receipt for that rip off service. Communication was marginal. I had to send several text messages to Marvin because "he" did not get the last message. Find someone else to repair your HVAC unit. I think all the positive feedback about Marvin's are from his cronies or family.