Excellent professional, courteous and efficient maintenance visit. I received confirmation of the service call the evening prior to the visit which confirmed the arrival time of the service representative. The tech received on time and performed a though review of the furnaces and other items on my maintenance contract. He was professional and respectful of my home as he checked the various items. He clearly discussed his findings with me and answered all of my questions. I was extremely please with the professionalism of the service representative and highly recommend their services!