Master Key Systems - Restricted Key Systems
From single-door access to complex multi-site facilities, Gronbek designs and installs precision-engineered
locking solutions tailored to your organisation’s security needs.
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.
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Gronbek: Securing what matters most!
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.
Manage access to private offices, meeting rooms, storage areas, and shared spaces with a streamlined key system for employees, managers, and maintenance teams.
If your property has been broken into or you've recently moved in, rekeying your locks is a smart security step. We'll update your existing locks so old keys no longer work — and provide you with a new set of keys.
Locked out and want your locks changed at the same time? We can unlock your property and rekey your locks in a single visit — for complete peace of mind.
Lost your garage remote? Or is it no longer working properly? Bring it into our workshop and we’ll match or replace it with a compatible new remote.
Need spare keys? We carry hundreds of key blanks in stock and can cut duplicates for almost any type of key while you wait.
Need a lock that Western Power can access? We supply approved WAS padlocks keyed to the Western Power master key system — ideal for meter boxes and utility access.
Master Key System Benefits
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
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.
Premises Secured
Satisfied Clients
Why Choose Gronbek Security?
Trust your security to the Perth locksmith company with the track record and reputation to provide the best quality products and installation. We offer a competitive price on quality, commercial-grade products for both commercial and residential security.
Locksmith Perth
If you’re not sure what you need or feel your home or business security could be improved, our team of Perth locksmiths can offer advice on a solution to suit your needs and budget. It may be as simple as choosing a new lock for the front door or designing an integrated security system.
FAQs
Our Perth locksmiths have been in the business a long time and are often asked the same questions. How can I prevent a break in? Do I need to change locks? Is my home secure? We can answer your questions so you can be informed about your security and safety.