Master Key Systems The Adapta Door Cylinder Range View Range Master Key Systems Adapta The most advanced, Anti-Drill, Anti-Barricade, secure door cylinder available, fully registered, fully traceable
- only from Master Key Systems,
Master Key Systems Euro Profile Locks Master Key Systems
Master Key Systems Adapta Prime Door Cylinder View Range Master Key Systems Adapta Prime The 1* Cylinder with 3* features! comes in a variety of lengths to suit your needs and is compatible with the full range of Adapta J40 cylinders. Master Key Systems Euro Profile Locks Master Key Systems

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 for commercial, industrial, healthcare and educational applications throughout sectors such as care homes, small HMO’s to schools and large complex academies.

By choosing Master key you are guaranteed both a premium solution coupled with customer satisfaction and support.

Master Key Systems
Master Key Systems Man

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 MasterKey Systems

Watch our short movie to see what makes us different

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Our dedicated British support team are here to help you, every step of the way





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Master Key Systems Euro Profile
MKS Pro Series Pro Master Master Key Systems Master Key Systems MLA Master Key Systems CISA Master Key Systems ASSA ALBOY Master Key Systems Adapta Prime Master Key Systems TS007