Restricted Key Systems
Melbourne & Surrounding Areas

A restricted key system means keys can only be duplicated by an authorised locksmith with your written consent — giving you full control over who has access to your property.

Call 0423 264 170

Why Choose a Restricted System?

  • Keys cannot be duplicated at hardware stores or locksmiths without your approval
  • Ideal for rental properties — stop tenants copying keys
  • Perfect for businesses managing multiple staff access levels
  • Patent protection means your key profile is exclusive
  • Full audit trail of how many keys exist and who has them
  • Compatible with master key systems for commercial properties

How It Works

We install a restricted lock system using a patented key profile that is not available in key cutting shops. Only Shield Locksmiths — as your registered locksmith — can cut additional keys, and only with your written authorisation.

This makes restricted systems the gold standard for security-conscious homeowners, landlords and businesses throughout Melbourne and surrounding areas.

Our Restricted Key Systems

SigmaX Restricted Key

SigmaX

Modern restricted key system with advanced security features and flexible master key options.

LG7A Restricted Key

LG7A

Proven restricted key system trusted by property managers and landlords across Australia.

Take Control of Your Keys

Ask Josh about restricted key systems — free advice, no obligation.

0423 264 170