Why Chose a Mobile Locksmith? A mobile locksmith comes to you. When they cut a key they make sure it works with the lock it s cut for. Other places copy keys even if the key is worn, then you have 2 bad keys with no refund. A mobile locksmith can regenerate the key to original specs using camputer calculation and knowledge. A mobile locksmith is a local small business owner, neighbor, friend, family member, and someone you see around the community. Support your local business.