This was a preventive maintenance visit. Colton arrived on schedule, letting us know he was on the was before he arrived. He told us what he was going to do and the access that would be needed. He worked diligently. At the end he reviewed what he had done and what he had found. when there was a question about billing, he immediately called the office and resolved it immediately. At all times he was friendly. He left with nothing for us to clean up.