A friend recommended him. My ac unit leaked over out over the winter. Had to call twice because he did not return the first call. my wife said he was friendly and polite that's it though He charged my system, 2 weeks later it was blowing warm air. I thought he would have pressure tested before charging since it would be common sense. I work in the construction field so I know what I am talking about. Always troubleshoot before doing any repair. Called him back and left a message on a Sun., Mon. around 2 I called back, said he got my message. a return call was not needed I guess. Said he would call later to set up an appointment for Thurs or Fri. My wife's schedule changed so I called him Wed. Since he did not call me anyway, to let him know and that I would call when I knew my wife's schedule. Called the following Tues and asked him to call me back. It is now a week later and no return call. DO NOT HIRE THIS GUY. Out 80 dollars because I have to hire someone else to do it properly!!