Alpine Climate Control, Inc. arrived on time as we had scheduled. They called to let me know that they were on their way. They made certain that everything was working smoothly prior to leaving and made it a point to came back just to check it out again before the end of the day. I thought that was very considerate of them. I have never used this company before but I now know that I have someone that can do the job and do it well. I would recommend these folks to others.