Traditional Master Key Systems
Mechanical key systems are acknowledged as the most cost-effective method for providing access control whilst maintaining security. In larger project applications, some users may need individual access requirements, and it is at this point that a mechanical Master Key System (MKS) really comes into its own.
Master keyed systems are a trusted solution for commercial and residential applications, making access simple without compromising security. A Master Key System is a logical first step when it comes to providing access control to a secure environment and remains a cost-effective solution, offering significant application, security and user benefits. Please see details of our project case studies here.
Master Key Systems
A master key system (MKS) is an organised keying structure where a single key can open multiple doors whilst other keys in the system open only specific doors. This creates a hierarchy of access that’s tailored to the needs of a building or organisation.
- Differ keys – Open just one lock (e.g., a single office door).
- Master key – Opens a group of locks (e.g., all offices on one floor).
- Grand master key – Opens all locks in the building.
This structure balances convenience for those who need broader access (like managers or maintenance teams) while limiting access for individual users.
A modern approach to Master Key Systems
Traditional master key systems are often hierarchical in format, designed around the position of doors, and their location on a floor, within a building, within a site. As a result, they can be quite rigid in their structure.
Access2 pioneered the implementation of “Control Key Systems” which are designed around the user and their access requirements, not the location of a door within a building. Control Key Systems, also referred to as Central Key Systems allow a huge amount of unique and flexible system design when compared to traditional master key systems.
The result? Multiple keys, multiple levels of access, all in a single, logical system.
Where Are Master Key Systems Used?
- Hotels & Hospitality – Staff, housekeeping, and management need different access levels.
- Education – Schools and universities streamline access across multiple buildings.
- Healthcare – Hospitals balance high security with fast access for staff.
- Commercial Offices – Managers need broad access; employees need only their areas.
- Residential & HMOs – Landlords and tenants share different levels of access.
Why Choose a Professional Master Key System?
While master keying may sound straightforward, professional design is crucial. Poorly planned systems can create vulnerabilities or leave you locked into rigid structures. Working with an expert ensures:
- Patent-protected keys (to stop unauthorised duplication).
- Compliance with certification and standards.
- A system that grows with your business.
- Key Control System - Access2 championed the use of Key Control Systems which are designed to suit key holders access rather than the location of doors in a building
Access2 and Tigris Premier 4: Security Without Compromise
At Access2, we specialise in patent-protected master key systems that put control firmly in your hands. Our flagship product, Tigris Premier 4, is a British-manufactured mechanical key system trusted across sectors where security cannot be compromised.
- Patent Protection – Keys cannot be copied without authorisation, giving you complete control over duplication.
- Flexible Hierarchies – From small businesses to multi-site organisations, systems can be designed and scaled to meet your exact requirements.
- Certified & Compliant – Meets stringent European standards for security, durability, and reliability.
A master key system is the smart way to combine security with flexibility. Whether it’s commercial, education, health, or hospitality, it puts you in control of who goes where — with the convenience of fewer keys and the reassurance of enhanced security.
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