Professional Replacement Lock

Yale Doormaster™ Professional is a High Security replacement lock.

With three hooks and two rollers, the Doormaster™ Professional has been tested to the Police Approved Secured By Design standard and is PAS 24 door set capable.


  • 92mm centres
  • Available with 35mm or 45mm backset
  • 16 or 20mm faceplate variants
  • Crop to size for maximum adjustment
  • Adjustable rollers for compression & weather proofing (PVCu variants)
  • 3 x high security anti-separation hooks
  • YS170 centre gearbox
  • Supplied with pre-assembled keeps using the patented 'Uni-packer' system for fast, easy, and reliable installation on PVCu doors
  • Specialist easy flush fit keeps provided for timber or composite installation
  • Designed for installation by professionals
  • Fixing tabs for easy and secure fitting
  • Rounded ends for safe installation
  • Supplied with split handle spindle for optional night latch function


  • PAS24 doorset capable
  • Secured by Design approved
  • 10 year guarantee
Product Options
DM PRO PVCu 35mm B/Set 16mm F/Plate
DM PRO PVCu 45mm B/Set 16mm F/Plate
DM PRO Timber/Comp 35mm B/Set 16mm F/Plate
DM PRO Timber/Comp 45mm B/Set 16mm F/Plate
DM PRO Timber/Comp 35mm B/Set 20mm F/Plate

Buy Online

yale store