Since Zhang has very good review in ChineseInLA, I called him to remodel my showroom(It was leaking). I was not sure if he can do a good job as people said in the review. However, I am very happy for what he has done to my shower room. He is very professional and knows what he is doing. Within four days, he gave me a new shower room, and fixed some other things with no charge. I would strongly recommend Zhang to be your constructor to remodel your home.