Seriously these cleaners are incredible! I called to schedule an appointment for our air duct to be cleaned and the technicians from Royal Carpet Cleaning showed up on time. The crew were courteous, honest and neat looking. Before the 2 guys went to work, they us what they will be doing and the time it will take to finish the job. My wife and I are appreciative of the superb service that they had done. Overall, we are very satisfied customer.