This business and their owner use some very questionable practices. They performed repairs on my AC unit in May 2012 and two months later the AC was broken. Come to find out it's because they installed old, used parts when replacing my compressor assist unit (capacitor). After discussing the situation with the owner, George, he stated he, "didn't give a rat's ass," and promptly hung up on me. Not the ideal response I was hoping for. Don't fall victim to shady business owners...and NEVER call Mechanical Brothers Heating and Cooling (formerly America's Comfort Heating and Cooling) for anything.