We initially contacted TDH Mechanical due to two neighbors who recommended them. They were correct in their recommendations. We got Wally Wojtowicz and his co-worker for the project. They were professional workers. They worked all day with only lunch breaks to complete the project. They provided through workmanship by minimizing the size of holes cut into drywall. He explained how to do the dry wall repair so the room would not get cold. He was considered for us as customer by starting the project at 8 am instead of 7 am. They cleaned the work area every day to avoid disturbance. We would recommend TDH Mechanical to anyone looking to install or repair mini split units and refrigeration lines.