With over 200 replacement multi-point door locks for UPVC and Composite doors, we offer a comprehensive range of quality branded door locks such as Avocet, ERA,Fullex, Fuhr, Ferco, GU, Lockmaster Maco, Mila, Millenco, Roto, Schlosser Technik, Winkhaus, Yale & more. Multi Point Door Locks can often be identified by brand. The brand name or logo can may be stamped onto the lock faceplate. For example, the GU logo can be found stamped onto all GU multi point door locks. With over 100 types of multi point door locks available, narrowing down your replacement lock to a single brand will certainly make things easier. Ranging from Avocet to Yale, we stock all of the UK's leading lock brands and have a wealth of technical know how on how to measure, fit and replace your door lock. As there are such a wide range of UPVC Door Lock Mechanisms, it’s essential that you correctly measure the key dimensions of the lock you wish to replace and each brand has a range of different sizes and features that you are able to select from to match your requirements. More information about measuring the key dimensions such as the PZ Centres and Backset of your UPVC Door Lock can be found on our Lock Measuring Guide page.