Security Tips - Maintaining a Secure Master Key System

Installation of a Master Key System is a great step in fortifying the security of your residential or commercial properties.

In the last blog, we have covered the benefits of a Master Key System and factors to consider before installing one. Now that you have a great security solution installed, what are the measures needed to maintain a secure system?

"The Bigger The Key Chain, The More Powerful The Man"

While managing a huge key system (think of a commercial building with multi-tenant occupancy or a company's corporate tower for example), it is very important to always consider the access level required by a key holder. 

The level of key access does not reflect the organisational status of the key holder, instead, practicality, functionality and security would be the elements to evaluate. The CEO of a company might only need key access to his office and a couple of corporate floors, while the cleaners would probably require access to more areas throughout the building. 


Logistics and records of keys is a matter of high importance - there are many instances where keys are being issued without proper thoughts and planning, especially involving high-level keys. Keeping key logistics intact means there is an accurate register in place to list all the key holders and a systematic process to retrieve keys when their owner no longer needs them.

These steps are all essential as if the integrity of the system is compromised (for example after a break-in or a cluster of keys is misplaced), a big part or all of the Master Key System might need to be re-keyed to update the system and/or lock out the missing keys.

Enforce Policies for Key Logistics

Replacements of a lost key or an issue of a key for new staff member should go through formal requests - to maintain an accurate register of key holders as well as monitoring security threat level (for lost keys). Key holders should also sign a document to acknowledge their responsibilities in keeping and returning the key safely.

For restricted keys, an approved individual will need to sign off the authorisation for your locksmith to cut a new key. Hence, ensure the list of your approved individuals is kept small but at the same time practical as well.

No Spare Keys On-Site

Frequent reminders and education of key replacement procedures should be done in an organisation, at least biannually. All key holders should be made to realise that no spare keys should be kept on-site for security purposes. If there is a need to keep spare keys on-site, then they should be fully secured in a safe. 

John Barnes employs SCEC approved locksmiths allowing government security clearance. Our Master locksmiths and security personnel are all fully-licensed and possess the experience, knowledge, capabilities, and resources to fully-securing Australian homes and businesses.

We have constructed, delivered and maintained various keying systems for federal and high-security facilities, commercial premises and residential buildings - servicing Queensland families, businesses and the Australian government for more than 50 years.

Have a chat with us to discuss your requirements as our experienced personnel can assist you in designing, developing, installing and maintaining a secure Master Keying System to ensure that your facility is protected.