What is the Doormaster™ Adjustable Lock? With its adjustable design, Yale Doormaster™ Adjustable ensures that installation is as simple as possible, for both the professional and competent DIY users. We developed this High Security replacement multipoint lock for almost all PVCu and composite doors. This installer-friendly solution is the ideal choice for your home if you need a higher level of security on your PVCu or composite door. If you’re looking to fit the Doormaster™ Adjustable replacement multipoint lock, take a look at the following how-to video: Why use Yale Doormaster™ Adjustable to replace a broken lock? There are a number of design features that make Doormaster™ Adjustable the ideal solution for homeowners experienced at DIY looking for a High Security replacement lock for their PVCu door. Hook Bolts Three hook bolts are used for High Security anti-separation. Adjustable faceplate and gearbox positions The adjustable faceplate and gearboxes can easily be moved to match most locks being replaced. Central Hook A sturdy central hook provides additional protection against attack by preventing separation. Secured By Design PAS 24 Capable Doormaster™ Adjustable has been tested to the police approved ‘Secured by Design’ standard and is PAS 24 door-set capable. 10-year Guarantee Yale Doormaster™ Adjustable is backed by our reputation as leading home security specialists, and comes with a full 10-year guarantee. You can learn more about our Doormaster™ replacement multipoint locks, by reading the product specification, or by contacting your local stockist.