01902 737 672 
The UK’s Leading
Door Cylinder Specialist
for over 25 years
A British, family owned business with over 25 years designing and manufacturing high-quality door cylinder locking systems. We provide systems for commercial, industrial, healthcare and educational applications throughout sectors such as care homes and small HMO’s to schools and complex academies.
By choosing Master Key Systems, you are guaranteed both a premium solution coupled with customer satisfaction and support.
Offering a 12 Month
No-Quibble Warranty*
We’re so confident in our product, we’re here for you, every step of the way with our
12 month, no quibble Warranty*
For over 25 years, our family business are 100% focused on the “Master Key Vision” - providing the best, most individual first-class premium end-to-end service for you, all backed up with ongoing Technical Support & Aftersales Care.
Inside Master Key Systems
Inside Master Key SystemsWatch our short movie to see what makes us different
Got any questions?
Our dedicated British support team are here to help you, every step of the way
