HomeMaster Key Systems
Allowing Hierarchical Access to your site securely and cost effectively
Designed, Supplied & Installed 
Free Survey & Quotation
50 Years of ExperienceMaster Key Systems
Lincoln Security have been building, supplying and installing Master Key Suites for over 45 years. One of our first commercial jobs was to supply the master key suite for a national water site back in 1976. Since then our team of experts have gone from strength to strength.
Utilising a mix of new technology and precision hand tools our master key technicians work tirelessly to prepare each and every lock and key by hand
The diagram illustrates a typical master key structure, with the level of key access dictated by seniority of position in the organisation as well as by access requirements.
Lincoln Security’s Master Key Technicians utilise the highest security keys and locks to ensure your site is kept secure from unauthorised access.
ASSA Abloy key mechanisms are particularly suited to Master Key suits, providing key holding simplicity to often complex requirements. Our solutions also encompass highly sophisticated key architecture, providing multi-level restriction with multiple master keys operating across many locations, overriden by a single grand master key.
Locks Need Love Too
Locks get just as much usage as doors and can be prone to failure if not properly maintained.
- Extend the lifespan of your locks
- Identify & rectify issues before they cause failure
