Trabuco Air worked in a timley and efficient fashion. Their workers were very nice, polite, and meticulous. Robert came to our home and explained the various systems avaliable. We decided to install a two stage variable speed furnace. All of the other companies wanted to cram a 16 SEER air conditioner down our throat. Robert compared the savings in energy between a 13 and 16 SEER a/c. After discussing this we realized that we wouldn't save enough energy to pay for the 16 SEER option. Robert saved us over $1500. I would recommend to all! GF