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. Restricted security key blanks of a master key are patent protected disabling other key manufacturers create duplicates of that design.

Master keys are also used by landlords or landladies in apartment complexes where they have a master key that could open a door in each flat, and on the other hand, each tenant also have a key to their own and specific unit. That very same key may additionally open the main door to their building or any other common areas. However, it cannot be used to open another apartment, unlike master keys.

Master key systems also involve grand master and sub-master keys. You need a master key if you do not want to keep a lot of keys for a lot of doors.

Depending on the needs of the key holder, we can make various master key systems. Dial our number today. We are round the clock available to provide answers to all emergency calls regarding a locksmith service.