MASTER KEY SYSTEMS

Master Key Systems

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Master Key Systems

Master Key Systems supplied and installed by the most qualified WA Locksmith Experts.

Master Key Systems supplied and installed by the most qualified WA Locksmith Experts

advanced access control systems

What is a Master Key System?

A master key system is a specially designed lock system that allows one key—the master key—to open multiple locks, even though each lock also has its own unique key. It’s a smart and secure way to manage access across different areas of a building without needing a separate key for every door.


At the core of a master key system is a clever locking mechanism that uses additional pins (called master pins) inside the lock. These pins create multiple shear lines, which allow more than one key to operate the same lock. That means individual users can still have their own keys, but a master keyholder—such as a property manager or security staff—can access all designated areas with a single key.


Master key systems are ideal for both commercial and residential settings. They help streamline access control, reduce the number of keys in circulation, and enhance security. Whether you're managing an office, apartment complex, school, or multi-unit property, a master key system offers convenience, flexibility, and peace of mind.

master key door lock system - how it works diagram
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Tired of Juggling Keys? Take Control with a Master Key System!

Who Needs a Master Key System?

Master key systems are a smart choice for any property that requires controlled access across multiple rooms, units, or departments. They’re especially useful in environments where security, convenience, and efficiency are a priority.

  • Office Buildings

    Manage access to private offices, meeting rooms, storage areas, and shared spaces with a streamlined key system for employees, managers, and maintenance teams.

  • Apartment Complexes

    Give each tenant a unique key while allowing property managers to access all units for inspections, repairs, and emergencies—without carrying a bulky set of keys.

  • Schools & Universities

    Control access to classrooms, labs, staff rooms, and administrative offices. Ideal for simplifying key management across large campuses with multiple buildings.

  • Hospitals & Healthcare Facilities

    Secure sensitive areas like patient rooms, supply closets, medication storage, and staff-only zones with tiered access levels for different departments.

  • Warehouses & Industrial Sites

    Ensure secure access to restricted zones such as stockrooms, equipment bays, loading docks, and offices—while minimizing downtime caused by misplaced keys.

  • Hotels & Hospitality

    Simplify access to guest rooms, housekeeping closets, service areas, and maintenance zones. A master key system supports smooth operations and quicker response times.

Master Key System Benefits

A master key system offers more than just convenience—it’s a smart, scalable solution for modern security management. Many businesses and property owners are making the switch!

  • Improved Access Control

    Easily control who has access to specific areas, reducing the risk of unauthorised entry and improving overall security.

  • Enhanced Convenience

    Say goodbye to bulky keyrings. With a single master key, you can access multiple locks quickly and efficiently.

  • Customisable Security Levels

    Set up different levels of access for staff, tenants, or departments—ensuring everyone can get where they need to be (and nowhere they shouldn't).

  • Scalable for Future Expansion

    Planning to grow your facility or team? Master key systems can be expanded as needed without overhauling your entire security setup. Whether you're running a small business or managing a large complex, a master key system is a smart investment in safety, efficiency, and peace of mind.

Types of Master Key Systems We Install

  • Simple Master Key Systems (One Level)

    Simple master key systems are designed to provide basic access control within a property. These systems typically consist of individual keys that open specific locks, while a master key can open all locks within the system. They are ideal for smaller buildings or properties where a single level of access is sufficient.


    • Easy to implement and manage
    • Cost-effective for small-scale applications
    • Ideal for residential buildings and small businesses

  • Multi-Tiered Systems (e.g., MK, GMK, GGMK)

    Multi-tiered master key systems involve multiple levels of access, such as Master Key (MK), Grand Master Key (GMK), and Great Grand Master Key (GGMK) levels. These systems are commonly used in larger complexes, commercial buildings, and facilities with hierarchical access needs.


    • Flexible and customisable for complex organizations
    • Enhanced control over different access levels
    • Ideal for schools, hotels, and office buildings

  • High-Security Systems with Restricted Keyways

    High-security master key systems feature restricted keyways that prevent unauthorised duplication of keys. These systems are often paired with advanced lock mechanisms, offering superior protection against tampering and unauthorised entry.

    • Maximum security with key duplication control
    • Tamper-resistant design
    • Suitable for government buildings, financial institutions, and data centers

  • Electronic or Smart Key Systems

    Electronic or smart key systems use digital or electronic keys to grant access. These systems may include programmable key cards or biometric access, providing a modern and secure solution for high-traffic or high-security environments.


    • Real-time access control and monitoring
    • Easily programmable and customisable
    • Ideal for modern office spaces and secure facilities

    Contact us today to learn more about how our master key systems can enhance your building’s security and convenience.

From Simple to Smart – We’ve Got Perth’s Keys Covered!

Our professional installation process ensures that your master key system is set up efficiently and effectively. We follow a structured workflow to deliver the highest level of security and performance.


Our team visits your location to evaluate your security needs and identify potential vulnerabilities. We take into account the building layout, access points, and specific requirements to recommend the most suitable master key system.


Based on the assessment, we design a master key system that aligns with your security goals. This involves selecting the appropriate key hierarchy and customising the system to ensure optimal control and convenience.


Next, we install high-quality locks and keys, ensuring they meet industry standards for security and durability. We make sure every component is correctly fitted and tested for functionality. We thoroughly test the system to verify that each key works as intended and that all security features are operational.

master key lock system installed in perth

Detailed documentation is provided, including key charts and maintenance guidelines.


To keep your system running smoothly, we offer ongoing support and maintenance services. Whether you need key replacements, system upgrades, or periodic inspections, we are here to help. Contact us today to schedule your installation or learn more about our comprehensive security solutions.


CONTACT US TO GET STARTED

Brands and Products

EVVA Master Keys

We have partnered with EVVA to provide our customers with reliable mechanical master key systems: 3KS Plus, 4KS, and EPS.

EKA CyberLock

EKA CyberLock combines the functionality of a mechanical master key system with the centralised access control system.

Dormakaba

Dormakaba master key systems offer top-tier security tailored to your needs for any type of building—residential, commercial, small, large, or complex.

Why choose us

We have grown from strength to strength and become one of the most reliable master key system installers in Perth.

25+ Years Locksmith

We have proven expertise in delivering reliable locksmith solutions.

All Major Brands

Supply and install trusted locks and security systems.

Customer Satisfaction

We believe in providing our customers with the best security products and services available. 

These are the values we focus on for everyone’s benefit. 

SCEC-Endorsed Technicians

We have qualified professionals certified for high-security installations.

24/7 Emergency Support

Rapid response for urgent locksmith needs, day or night.

Quality Workmanship

We have ben in business for a long time and we take pride in delivering exceptional results -ALWAYS!

Offices and businesses

Our master key systems for offices and businesses are designed to streamline access while maintaining high levels of security. With a customized key hierarchy, employees can access authorized areas without compromising overall security, making day-to-day operations smooth and efficient.

Public institutions

Public institutions such as schools, government buildings, and hospitals require robust and reliable access management. Our master key systems ensure secure, tiered access while allowing authorised personnel to move freely within designated areas, maintaining safety and operational efficiency.

Proud members of the Australian Security Industry Association Limited

24/7 emergency locksmith services in Perth & WA

HIgh-quality & rapid locksmithing services and corporate solutions. Contact us today!

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