Global Locksmith Shop Residential Master Key Lock Chicago, IL

 

What is it?

Global Locksmith Shop Chicago, IL 312-809-3980Have you ever observed your building supervisor carrying around a key that could unlock every house in the event of an emergency? This is called the master key. The system allows owners to wield a single key that can access all the locks within a premise. This system can be further expanded into a sub-master system that would act as a subordinate to the master and can access a limited number of locks.

Repair and replacement services

Why should I get a master key system at my home?