Master Key Systems

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Grays Locksmiths have been designing, building and maintaining master key systems for almost 30 years. We have supplied suites nationally for schools, hospitals, government buildings and student accommodation.

Master locks are becoming more and more popular, not only for commercial applications. We have a range of cylinders and padlocks which can be suited in some way…. either keyed alike, where one key fits all locks, or master keyed, where each lock has an individual key and a master key opens all of them.

From one door, where two locks operate on a single key, right up to a multi site complex master key system with hundreds of locks. All lock assembly work is carried out in our own workshop, and records are stored securely.

Keys can be cut to code, an example of this is when a student loses a bedroom door key, we are able to produce a key on the landlords request and the student can either collect, or we will post same day. This saves having to have the locks changed.

Are you a landlord? It’s likely that you’ve had a call from a tenant whose lost their key and needs a quick replacement. Read more in this blog post to find out more about Master Key Suites.  


This example explains the different levels in a large master suite

  • Grand Master Key – This key will open every lock in a suite, often over multiple sites nationally.
  • Master Key – This will open for example every lock in one building or city.
  • Sub Master Key – This gives a designated individual access to a specific section within a building, for example a specific floor.
  • Change Key or Servant Key – This key will open one lock, for example a tenant or single office user.

Master Key Systems give you the flexibility of controlling who can access different buildings, departments and rooms.


Need help or advice with Master Keys and Master Locks?

We're experts in all things locks and keys and pride ourselves on our excellent customer service and professional yet friendly team. Contact us today on 0115 9422315, or call in and see us…we’ll be happy to help!