St Louis is be filled with many locksmith service providers; however, you have to find the one, which is the best. Aim for the one, who is providing 24/7 locksmith services in st louis, is certified and asks you lots of question. Make sure the locksmith service provider feels safe and is quoting an affordable or market price. If there are many in the market, you can compare the prices; however, if you are in a hurry do not forget to read the reviews and comments online since these would give an idea on the professionalism of the locksmith service provider. Having a locksmith who is offering multiple services would be handy in the future as well. But, most of all do not locked keys in car and if you have just make sure you get the best locksmith as soon as possible