Drove out and met with Scott to discuss the issues going on. The units in question were high up on the ceilings and could not be reached for proper diagnoses. I explained to Scott that based on the information that he was providing, that I could still move forward by recommending services to resolve his ongoing issues. The units are all in need of a total breakdown down and deep acid wash cleaning. The large ceiling cassette will require scaffolding to service. I worked up several options for their consideration. Scott said that he was shocked at the pricing and he wanted time to think about it. I thought the presentation went well. I displayed pictures of previous services performed. They were impressed and drove the point home. Will follow up next week as per customer request.