Master key or master keying is the capability to use one "Master" key to open one or more locks that are not actually keyed the same. Locks are safer because the restricted key-way decreases the possibility of accidental opening using the incorrect key.

Master keys are usually being used by apartment owners where they can open each door of their rented rooms/flats, and each occupant possess their own keys for a specific unit as well. Other common areas in the apartment can also be opened using this key including the main door of the entire building. However this key is not going to work on the lock of a different unit.

Multiple master, grand master, and sub master keys may be involved in the master key system making it a complex system. You need master keys systems if you're not into bringing too many keys when opening multiple doors.

Depending on your key holder, we are sure to make the proper master key systems. Calling us would be the best thing you should do when in lock trouble. Reach us through our number and we'll provide answers anytime. Remember that you can easily reach us by phone 247.