I think you are refering to Mrs. Kim, from my best recollection the window does have a sign that says Alterations. She is reasonable, does a good job, and has a quick turn around.
If you are talking about the same place, it’s Fit All Alterations – 6900 block of California. I’ve been going there for years and have always been very happy with the job they do.
I ended up taking the dress to Fits All Alterations and they did a great job at a very affordable price. I checked out a couple of other places and they both quoted $20.00+ higher than Fits All. Thanks lrukandji,squareeyes,franci and westside2 for the recommendation.