That s it the cylinder should be out of the door and you can measure it to see which size you need.
How to change a cylinder lock on a upvc door.
Always try and replace your old gearbox with the exact same size and brand.
To change a upvc door lock start by unscrewing the retaining screw which is located on the faceplate on the side of the door.
All you need to replace your old upvc mechanism with a new central gearbox is a screw driver or drill and a spare 5 minutes.
If it s hard to remove from the door try spraying a little wd 40 around the cylinder.
If you have any upvc lock issues and need a locksmith why not contact us and leave it to the professionals.
When the screw has been removed put the key in the lock and turn it slightly until you feel the cylinder release.
Then insert the key into the lock and turn it about 10 degrees to line up the inner latch of the lock with the body of the lock.
Replacing a multipoint upvc door lock may seem like a daunting task but with the right tools and know how it is relatively simple.
How to change a upvc door lock.
This is the large screw that is in line with the cylinder.