I had two new sets of air conditioning units installed 5 years ago so they are relatively new and should not break down at all. Unfortunately one of them completely stopped working. I had a feeling that the breakdown was from a bad install job and I did not want to call back the company that originally installed the system. Luckily a friend recommended Comfort AC & Heating. They responded to my Yelp request within an hour and they showed up the same day and diagnosed the problem. They were very clear and transparent with their work. They redid the electrical setup for the unit that was broken and they offered to do the same for the other unit so it doesn’t have an issue in the future. The pricing was very fair and the service was excellent. I highly recommend this company and I refer all my friends and neighbors to them.