Master Key Systems in Nottingham

Master keying refers to a mechanical locking system used throughout a building whereby one key can access multiple locks. This system, also known as a master key system (in reference to the master key which accesses all locks), is used to provide or limit access to different locked areas within a building or complex.

Master key systems use cylinder locks which can be accessed as normal by an individual key designed for the lock. However, master keyed locks also feature additional pins – referred to as a wafer pin or master shim – which allows it to not only be accessed by an individual key, but a master key(s) also.

The master shim is inserted between the top and bottom pins within a cylinder lock, so that there are two different shear lines, meaning the master keyed lock can be accessed by at least two different keys. Alongside the master key, there may also be multiple sub-master keys. A master key system works on a key distribution hierarchy; this means sub-master keys will have more access than a key used for a singular lock (a differ key) but will not have access to the same number of locks as a grand master key.

Due to the complex nature of this type of hierarchical system, careful planning is needed whilst designing bespoke key management systems to ensure a safe and secure locking system.

There are numerous benefits to using a master key system, including increased convenience, security, peace of mind and control.

A master key system with high security locks ensures total peace of mind for both residents of a building and its management team. Master keying makes certain restricted areas remain secure, whilst also granting access to specific people in case of emergencies or protocol.

The convenience of managing a reduced number of keys can also bring peace of mind in emergencies such as fires, as well as saving critical time ensuring exit routes are open and all residents have been evacuated safely.

A reduced number of keys can also save costs when making and replacing keys.

The calculated key management plans within a master key system ensure all access is predetermined – meaning, specific keys grant specific access.

This increases security for all those involved, including both residents and management teams, and any goods which need to be safely stored away.

The reduced number of keys involved in a master key system, since one key is needed per person rather than multiple, ensures there are fewer keys that go missing or become stolen, which further increases the security of a building or complex.

Master keys also increase the level of control a person has over a property. Not only is access controlled at all levels, but restricted master key system keys cannot be duplicated at local key bars, they are only available to order by the master key registered owner directly from the master key system manufacturer.

This means keys cannot be copy cut by unauthorised key holders, such as HMO tenants, maintaining the security of the master key suite.
And, because it’s much easier to track the levels of access people have, it can be easier to detect the cause of break-ins and thefts.

Master key systems are typically used within high security multi-occupation buildings and complexes such as apartment complexes, schools, office spaces, and care homes. Correct key management is a way of increasing commercial security within environments.

In houses with multiple occupants (HMO), managed by a landlord, and large complex blocks, it can be advantageous to use a master key system. This ensures that the landlord and other employees can still access all rooms for necessary maintenance, checks, or emergency work, whilst still making certain residents feel safe and secure in their rooms.

The master key system works on a tiered keying system basis. By increasing the number of tiers within the system, access becomes further compartmentalised with suited keys. For instance, the great grand master key sits on the top tier, with access to all lock systems below it. As you go down the tiers, access becomes more limited, ending with a differ key which can access an individual lock(s). Access levels start at the great grandmaster key, and move down to the grandmaster key, followed by a master key, sub-master key and finally ends with differ keys.

Please contact us if you have any further questions on our range of master key systems.