Only remove the key from the lock once the retaining screw is secured back into place.
How to change a upvc door lock barrel.
With a barrel lock it s the cylinder that allows the locking and unlocking of a door.
Open front door to reveal the face of the lock.
There are several types of cylinder locks.
How to change a upvc door lock.
Slightly loosen the door handle fixing.
Move the key slightly to the left and slightly to the right pulling the key towards you at the same time until you feel it release.
Put the key in the door barrel from the inside.
Locate the cylinder retaining screw using the cylinder as a guide and remove screw.
The one presented here is a.