Chris and his trainee, Todd were friendly and thorough in tuning my furnace. I appreciate their patience with my rescue dog who was very hesitant with them at first. He loves them now:) Although not their problem, I was very disappointed that the original technician did not show at 8:00 as scheduled. I had to call over an hour later to inform Chelsea that he had not arrived. Luckily I was able to reschedule for the afternoon.