We used a little place up around 51st and I-35 a few (like 4 or 5) years ago, they did a great job, and its held up quite nicely. I don't remember the name, but it's essentially just some guy working out of his house.
Just west of the highway, on the north (westbound) side of 51st (behind Cothron's, maybe?).
I have seen that place recently and it has a big yellow sign in front, I think. But it is where he says it is. I know one other person who has gone there and they had nothing bad to say about it. It's held up.
I used this place about 3 years ago. Ripped the headliner out of my Toyota suffing a large piece of furniture in the back seat. Excellent job, very reasonable. Took about 2 hours. Run by a man and his wife... nice couple.