We had Dj as our technician and he went above and beyond his routine service that day. He told us about the magnetic air filters and how it would be beneficial having one put in. So we did and he told us about having the ducts cleaned so everything would work together to . How this would make furnace and air conditioner last longer. He is very knowledgeable and very helpful. We will have him back again. He needs to be praised for a outstanding job. Very pleased with our service.way to go Bj.???????