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Master Key Suites

Master key suites across the North of England


A Master Key suite allows each lock to have its own individual key which will not operate any other lock; however, each lock also forms part of a larger set allowing them to be operated by a single key – the master key.

A Master Key suite provides the following:

  • Grand Master Key– This is the ‘ultimate’ key. This gives you full access throughout several buildings.

  • Master Key– This key is equally powerful, except that it gives you full access throughout one building as opposed to many buildings.

  • Sub Master Key– This gives a designated individual access to a specific section within a building, for example, someone in charge of a department or warehouse.

  • Cleaners, maintenance, and delivery keys– These keys restrict access to relevant areas only, ideal for cleaning, maintenance work and receiving deliveries.

  • Change key or servant Key– This lock only has one key which makes it perfect for tenants, small shop owners or students.



What is the purpose of a Master Key Suite

- Restrict access to areas of a building

- Give designated key holders access to specific areas or buildings and by restricting access through controlled measures, it increases the general security of a property.

- Reduce the amount of keys an individual is required to carry

- Master Key suites enable a person to control access to certain areas of a building while also reducing the amount of keys that may need to be carried.

- Controls security within one or more buildings as it gives designated individuals access to specific parts of a building, for example, different departments, private areas or delivery zones.

Who would benefit from a master key suite?




Large industrial buildings

Landlords and property investors

Large industrial buildings

Retail chains

An Example Of a Master Key Suite


Example 1: A hotel has 21 rooms all of which require there own keys for use by the guests. The house keepers need to access every room each morning to clean the rooms.  A master key suite would allow each guest to only access there own rooms.  House keepers would use a master key giving them access to every room using only the master key rather than 21 individual keys.

Example 2:- An assisted living home has 10 residential bedrooms,

The site manager requires one master key that opens all locks in the building.


Each resident requires access to there own bedroom only. Each bedroom has its own 'differ key'.' differ keys' are issued to each resident so that they have a key to their own bedroom.

Care Workers require access to every bedroom in case of emergency. Sub Master Keys are issued to care home workers and  each one opening all locks for all residential bedrooms.

Separate keyed alike locks still passing the master key are fitted to Cleaners Cupboards, another keyed alike set to Store Cupboards.


Main entrance doors are fitted with keyed alike locks which remain outside of the main master key systems due to the consequences of a master key being mislaid or stolen. In these circumstances, only the outer door cylinders would need to be changed, making our master key systems one of the most efficient type of key system available.

1st for locks is able to provide both restricted and non restricted master key suites from the following manufactures : Brisant, GeGe, Evva, Mul T Lock

Difference between restricted and non restricted.

Range of cylinders covered


Low cost master key suites

We can help you find the right Master Key System for your needs budget and level of security

Over the years we have installed master key suites for National hotel chains, Care homes and Schools.


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