Carlos came highly recommended from a trusted source. We originally scheduled him for routine maintenance of our two units. The scheduling process was quick and easy and he is a great communicator! Upon a thorough inspection, Carlos discovered a leak in one of the units that would have been cost restrictive to repair. He documented the issue and walked us through all our options, We decided to have the unit replaced and Carlos got the items needed ordered right away. He showed up on time and explained that one unit was different from originally quoted as it would not work with our existing ductwork. This was actually a better system and one which Carlos actually had to go through a training class to install. The work was done efficiently, they cleaned up well, even fixed a few things for us they noticed, and walked us through the whole system. Carlos is very knowledgeable, communicates well, comes when he says he is coming, doesn't leave until the work is finished,and never tries to upsell. He has a great team which includes several of his family members including his lovely wife, Angelica, who was out to help on one of the days of install. We will be using Entity Refrigeration for all our HVAC needs and highly recommend Carlos and his crew!