If you’ve never replaced a lock before, it can be tricky to know where to begin! Use the steps below to gather the key details you’ll need to order the correct replacement lock.
Check for a Manufacturer’s Name
Great - you've found Products stamped on the faceplate, or, the centre case of the lock looks like one below. If you're unsure, you can always send us an image here.
Identify the Locking Points
Look up and down the faceplate to see what locking mechanisms are fitted in addition to the latch and deadbolt. Example Answer: 2 Hooks and 2 Rollers
Measure the Backset (Measurement A)
The backset is the distance from the front edge of the faceplate to the centre of the keyhole (cylinder).
Measure the PZ / Centres (Measurement B)
This is the distance from the centre of the keyhole to the centre of the square spindle hole (where the handle goes through).
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Fullex XL 3 Hook 4 Roller 2 Anti Lift 35x92 Dual Spindle
Regular price £96.90Regular priceSale price £96.90 -
Fullex XL Centre Case
Regular price From £38.34Regular priceSale price From £38.34 -
G-U Ferco Latch 2 Rollers Multipoint Door Lock
Regular price From £79.19Regular priceSale price From £79.19 -
Gibbons Centre Case for Extension Bars 30x48
Regular price From £102.29Regular priceSale price From £102.29 -
GU 2 Deadbolt
Regular price £87.40Regular priceSale price £87.40 -
GU 2 Hook 2 Roller
Regular price From £75.30Regular priceSale price From £75.30 -
GU 4 Roller
Regular price £59.70Regular priceSale price £59.70 -
GU Copy Old Style Gearbox
Regular price £36.30Regular priceSale price £36.30 -
GU New Style Centre Case
Regular price From £36.90Regular priceSale price From £36.90 -
Lockmaster / Mila Master 2 Hook 2 Roller Multipoint Lock
Regular price £96.90Regular priceSale price £96.90 -
Lockmaster / Mila Master 2 Hook 4 Roller Multipoint Lock
Regular price From £102.90Regular priceSale price From £102.90 -
Lockmaster / Mila Master 3 Deadbolt Multipoint Lock
Regular price From £88.50Regular priceSale price From £88.50 -
Lockmaster / Mila Master Genuine Centre Case
Regular price From £47.10Regular priceSale price From £47.10 -
Maco 2 Hook 2 Roller Multipoint Lock
Regular price From £86.11Regular priceSale price From £86.11 -
Maco 35mm Gearbox Centre Case Old Style
Regular price £39.90Regular priceSale price £39.90 -
Maco 4 Roller Multipoint Lock
Regular price £82.50Regular priceSale price £82.50 -
Maco Genuine CTS Gearbox / Centre Case
Regular price £57.30Regular priceSale price £57.30 -
Maco Genuine G-TS Centre Case
Regular price From £59.10Regular priceSale price From £59.10 -
Mila Centre Case
Regular price From £36.30Regular priceSale price From £36.30 -
Millenco 3 Hook 2 Deadbolt 2 Roller 35x117
Regular price £156.90Regular priceSale price £156.90 -
Millenco 3 Hook 2 Deadbolt 35x117
Regular price £153.90Regular priceSale price £153.90 -
Millenco Mantis 2 – 3 Hook 2 Deadbolt
Regular price £174.90Regular priceSale price £174.90 -
Millenco Mantis 2 – 3 Hook 2 Deadbolt 2 Roller
Regular price £144.90Regular priceSale price £144.90


















