Master Key Systems MKS Limited
Master Key Systems MKS Limited

20+ years of ‘master keying’
experience at your disposal...

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01902 737 672

Master Key Systems MKS Ltd is a family owned business that has been designing and manufacturing Cylinder Master Key Systems for over 20 years.

We stock a wide range of products including our own manufactured 5 & 6 pin master key system developed from its predecessor the E Suite 5 pin which has been in general circulation for over 15 years in applications as diverse as B & B's to MOD sites. Promaster has been developed from our very successful PRO series and is an entry level BSEN 1303 accredited range of cylinders for Master Keying.

About Us

Unravelling the master key system…  

Expert advice is just a click away – let us answer your master keying questions, or simply download our master keying planning chart


Unravelling the master key system

Watch our short movie to see what makes us different

MKS - case study

Find out how we helped the Supreme Court facilities management team solve a door locking problem literally overnight… 

Case Studies

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