Many companies have multiple shift timings, which means that they open and close at odd hours. It is often the case that the owner or the caretaker of the company has to come personally to open and shut down doors, as well as to enable and disable the security systems. This is undoubtedly a great hassle and takes useless time and energy. Having a caretaker is one option, but such a person must have your complete trust. There is a third option. You can employ professional security guards to do these mundane work for you.