If you are thinking about  changing your locks or increasing the security of property that you manage or own, it is only natural that you like all other people will begin to think about hiring a locksmith to do this task for you. After all it is their trade and what they are experts at. The doubt always comes into play because you are potentially giving these people access to your home and property. If you hired a shady locksmith, they could make multiple copies of keys to your home and use them for bad reasons. In order to prevent something like this from happening, it is important that you do your due diligence before you go ahead and hire a locksmith. I always tell people to treat it like an interview, have a list of questions ready to ask the locksmith that you are interviewing and be prepared for questions from them. I did this for the Plano locksmith that I hired and all went well.