I highly recommend this service. After calling around all day and receiving nothing but promises and no delivery, I finally recieved a call back from Norman Heating and Air. He was able to meet me at the house in a hour and even showed up before I got there. Living with minimum air and the heat of 97+ is not fun!! He found the problem in minutes had the part on the truck and fixed the problem in little as a hour. He was very nice and professional. I recommend his service to everyone in Knoxville!!! Thank you Norman Heating and Air....you made one woman very happy!!!