I purchased my Carrier Air conditioner and handler from Bay Area Heating and Air Conditioning in Spring 2014. The system has keep the house cool and most importantly, my electric bill has been reduced substantially. I always have my annual maintenance done by Bay Area Air. This year, David, the technician diagnosed a potential problem with a part and replaced it. He was exceptionally polite and thorough in his work. It was a pleasure to have him service the unit.