Comfort Control Systems, Inc. has been providing my home with excellent services for over twenty years. They recently did a seasonal tune-up on the furnace. Everything turned out okay. The technician was fine and very professional. I have had very good luck with their customer service. As for pricing, I am on their maintenance agreement. I pay once each year and they come out on a regular basis to check on the air conditioning unit and the furnace. So far, so good! I highly recommend Comfort Control Systems, Inc. and I definitely will continue using them. They have been just perfect!