Dennis Johns Service Group have been specialists in the Supply, Installation and Maintenance of all types of Access Control and Door Entry Systems for over 18 years.

Having worked in the majority of the London Boroughs as well as providing a comprehensive reactive maintenance service DJSG has built up a wealth of experience with all of the leading systems.

Dennis Johns is so proud of its motivated and highly trained workforce that have so often been able to repair existing systems and faults, therefore providing a very cost effective solution at all points, with guaranteed security.


Please select one of our case studies below to see some of our work: