If you want someone you can trust to do an excellent job, Bill is the guy. He just installed a brand new main heating and cooling unit, after spending years helping us keep the twenty year old one going, and we couldn't be happier. Bill is incredibly knowledgeable, and a highly skilled and proud craftsman of his trade. He is not going to just slam a new unit and be on his way because he cares about his reputation and depends on it for referrals. He treats the job as if he is working on his own house. This is the second unit he has replaced in our house in the twenty years we have been here (we have a multi-zone house), and we have not had issues with either one--but tons of problems with the ones installed by others.
Bill is fantastic! He knows more about his trade than any other repairman I have called in the last 25 years, so he quickly identifies the problem and makes the needed repair. He charges less than the competition because he does the work so fast and does not charge for every minute of his time, and even makes minor repairs without asking or charging for it. He almost always has the part I need on his truck, so it usually only takes one visit. He always picks up when I call and goes out of his way to come when I need him, by the next day if my A/C or heat is out. I have been relying on Bill for all of my heating and A/C work the last five years to fix problems in emergencies and take on large jobs like replacing old air conditioners. I trust him and, unlike most of my household repairs, I don't feel like I've been robbed when he leaves the house.