I called JMAC on a steaming hot Wed night ( high temp that day was 116 degrees) when Coolace, who put in my a/c unit, was not able to come out to my house to fix my unit. The unit is a Carrier brand ( only four years old at the time). Matt from JMAC came out and simply exceeded my expectations. He fixed the unit and went above and beyond. I would definitely recommend JMAC for your ac needs. I hope to develop a long term relationship with them for my ac needs.