First Choice Locksmiths can custom design a fully restricted Master key system tailor made to suit your security needs whether a small business or a large corporation. We offer an obligation free survey and quote to determine the best possible security solution to meet your needs.


A master key is a way of restricting access to certain locks or areas in a building. The Master key will open all door is the system and individual keys known as “change keys” will only open some doors. This is a very effective way of limiting access to sensitive areas in your business premises.


Larger organizations can use more complex Grand master key systems which may have several Master keys and the top level Grand master key works in all of the locks in the system.

Master keys systems are also beneficial in that restricted keys cannot be copied without the written approval from one of the systems signatories. This way the owner of the restricted system can keep track of exactly how many of each key has been cut and rest assure that no unauthorized copies have been cut.

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