Our AC stopped working and we couldn’t figure out why. We called Advanced heating and they got us in swiftly to have a tech come out and see why it wasnt working. Jeff came out and explained all the nuances and why our upstairs wasn’t cooling off. It was an easy fix and a valve that was closed and needed to be opened. He spoke with my husband and gave him advise on how to keep the system running smoothly going forward. We are grateful for the help and excellent service. Just in time for the summer heat. We would highly recommend Advanced heating and cooling and will continue to use them for future needs.