Doormaster Yale Doormaster™ range makes replacing multi-point locks simple and will replace any lock with top and bottom hooks or bolt, a 35mm or 45mm backset and 16mm or 20mm faceplate. Yale Doormaster™ replacement gearbox range are designed specifically for professional installers suiting most popular models on the market. Replacement LocksYale Doormaster Replacement locks are available in a variety of types designed to suit PVCu, Timber, and Composite doors. Standard and High Security models are available for DIY or Professional... Overnight LocksDoormaster Overnight Locks are designed with the professional installer in mind. Available in a variety of models, they secure a door temporarily while a suitable permanant replacement lock can be... Replacement GearboxesYale Doormaster Replacement Gearboxes are designed especially for professional installers. Addressing several common causes of lock failure, the range suits many of the most popular models on the...