C & J Air Conditioning and Heating Co. has done work a few times now for us. We even do the annual inspections with them for the check-ups. That is what they came out to do most recently, the annual check-up. The technician was prompt, polite and professional as they have all been. He got to work on the unit quickly. Whenever we have called about a problem they have been able to look at the unit and make a diagnosis quickly then let us know of their findings. They explain what is going on and what they can do to fix it. They also take the time to answer our questions. The technicians are knowledgeable and professional. They keep their work areas clean and tidy. They are respectful of our home and courteous. We will continue to use C & J Air Conditioning and Heating Co.!