My old garage doors where poor quality, and very loud. Also, only one side wasn't even working, and I opened it manually for almost five years. Greg of Alhambra Garage Doors is my neighbor, and I flagged him down one day and asked him to replaced the whole thing for me.
I can definitely say that he knows what he is doing, because I watched him work. He also goes very quickly, and can really bang the job out for you. He installed new, insulted doors, new tracks, and new belt-driven motors. Everything looks nice and solid, and I'm happy with the work.
When my wife got home the very first day, I didn't even hear her arrive, it was so quite. Also, because of the insulation, I can work in the garage even when it's hot outside and still stay cool. Greg did a good job, and I know he will take care of any problems if they arise. Look Alhambra up in the phone book, and use someone who knows what they are doing.