Arch Locksmith is a professional and mobile locksmith in St Louis, MO. Our locksmith technicians specialize in a variety of lock and key services for residential, commercial, safes, and automotive customers. For example, if you find yourself locked out of your car or home, need car keys programmed, smart locks installed, deadbolts rekeyed, or other locksmith services in St Louis, MO, contact this St Louis MO Locksmith, Arch Locksmith by calling 314-370-1051.