Bike Repair Reccomendations

I've got an old mountain bike that I am in need of repairing. I am not looking for the highest quality repair to have the bike performing perfectly, I just want it to be in good enough shape to ride again. I know absolutely nothing about bikes but as far as I am concerned I believe I would just need to fix the tubes on the tires, the gear shifter, and a new chain. I am looking for somewhere where I could get that done and have a consultation for anything else that might need to be fixed. I am located in the southeast part of Houston as in Baytown area. If anyone could recommend me to somewhere I could take it! I am hoping to take it in the morning somewhere. Bay Area Cycling in League City is at the top of my list right now but mainly because they are really the only bike repair shop near me I have found! If anyone has any recommendations I will gladly consider all of them! T