I have to second the recommendation for Joe. I've hade him tailor several suits and was very impressed. I will say though, you will pay for his skills and abilities.I've been using Bill Cairo in San Marino. Joe, who runs the front office is very pleasant and they know how to properly altar a suit. Good attention to detail. I've been quite pleased with them. I've also heard good things about Vinh's Tailor in San Gabriel but don't have any direct experience with them.