As a UK-based supplier of locking systems and master key solutions our experience, our knowledge and our precision engineered products exceed standards. At CES Security, we specialise in master key systems, high-security lock cylinders, and bespoke access solutions designed to protect homes, businesses, and public buildings across the UK. As a trusted supplier of British Standard certified cylinders and precision-engineered locking products, we combine German manufacturing excellence with over a century of innovation. From master key lock systems for large commercial sites to anti-snap Euro cylinders for residential security, our products are built for strength, reliability, and long-term performance. As experts in security, we work in collaboration with architects, architectural ironmongers and the end-user to design systems to their bespoke requirements, not around our products.