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Restricted key systems are a great way of increasing the security to your premises.

From Strata buildings large or small, Commercial buildings and private businesses within them, Schools or even your private home. 

A high security or medium level restricted key system provides a defence against the potential of, someone trying to manipulate your locks and the control of the amount of keys being cut, how many keys being cut and who is asking for the keys to be cut.

We at Bells take that one step further. As part of the Master lLocksmiths Association Australia (MLAA) we have access to systems available the not all locksmiths can purchase.

We also have contractual agreements in place with some of the industry’s leading suppliers in restricted key systems and have purchased our own private broaches limited to areas like NSW only or in other cases Sydney metropolitan. 

We have internal procedures in place that limit staff from accessing the information and key blanks which are stored in secure safes within locked and alarmed locations.

These 2 things coupled with the additional security features a restricted key system give’s outlined earlier, all work together in limiting the travel of unauthorised or unwanted persons through the building’s and premises within.

We have installed these systems with great success in some of this countries most prestigious Schools, in buildings built by leading Developers, strata buildings Australia wide, Commercial buildings throughout Sydney and in many of the finest homes scattered throughout Sydney.

Registered and high security key systems are available in a number of different forms and security levels. Systems of this type are typically used for securing and controlling access in commercial, residential apartment blocks and institutional environments. They are also for anyone wishing to have control over the quantity and issue of keys.

Bells Locksmiths are specialists in the design and installation of registered and restricted key systems from one key systems through to large master-keyed systems for any size of business. Strata companies throughout Sydney, Government organisations and many blue-chip companies have entrusted Bells Locksmiths to be custodians of their high security key systems.

Bells Locksmiths offer a range of medium level to high level restricted and master-keyed systems including:

  • Bilock New Generation (approved for use by ASIO)
  • Lockwood Generation Six
  • Galaxy
  • Medeco
  • Master Locksmiths J Series
  • Australian Lock Company BPA Series (Binary Plus)
  • Lockwood Twin

Bells Locksmiths offer a range of medium level to high level restricted and master-keyed systems including:

High and medium level Security, keys and cylinders

Bilock New Generation (approved for use by ASIO)

Changing and Rekeying Locks

Lockwood Generation Six


Keyless Entry Systems


Door Closers (Heavy-Duty Commercial/Residential)

Master Locksmiths J Series

Access Control

Australian Lock Company BPA Series (Binary Plus)

High & Medium Security Key Systems

Lockwood Twin

How do restricted master key systems work?

Master keying is a high-security solution commonly used for large-scale projects and commercial premises with multiple doors. A single key known as the ‘master key’ will open all doors within the building, and individual keys are designed to only open some doors. In this way, access is compartmentalised and can be restricted to restricted areas.

Your master key system is only as secure as the key distribution – so it is important to ensure that unauthorised people cannot duplicate keys your keys. Bells Locksmiths protect their clients with thorough security procedures. Restricted keys cannot be cut or duplicated without written and signed authorisation of nominated personnel at your organisation, and all the keys are safety coded to identify which company owns the system.

We specifically design these systems according to clients’ requirements with practically unlimited capabilities and combinations. Master key systems can be modified at any time to suit changing circumstances, for example, for new employees or business expansion.

Security of your information

Equally important is the secure storage of your masterkey information. The ordering, issuing and management of keys is done electronically ensuring maximum security. Bells Locksmiths keep all your confidential data on our secure, passworded server, which is only accessed by a select number of personnel.

Contact Us Today to Discuss Your Needs

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