This company installed two new units in our East Mesa home in mid March of 2018. They were well supervised, extremely hard-working, professional and pleasant to deal with. They did not leave a mess behind. The company also provided excellent follow-up by another professional tech who reviewed (quality control) the work that was performed by the installers and to explain more things to us about the operation of the system and the new thermostats. Even prior to doing the installation, when they came to our home to scope out the project and bid the work (one of four bidders) they were extremely thorough and credible. Although we had bids from other fine firms who were also very professional we are very satisfied in having gone with George Brazil.