Carolina Heating technicians have always been professional and efficient in providing maintenance on our unit since its installation in 2012. Your company can be assured that today, TJ Smith represented Carolina's high standards of service. Not only was he thorough, answered all questions I had, & very professional, but carefully went over the work he did on the unit. He provided a print out of the work done (first one received)which was helpful. I appreciate the friendly service because he cared about doing a good job. Thank you, TJ!