If the lock is too big you should put the original lock back and purchase a lock that is as close to the dimensions of your door as possible.
How to change a lock on a upvc front door.
Plastic is used to make doors and is most commonly called a upvc door these types of doors usually use cylinders.
Due to this one point of control for the whole door this cylinders decides.
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.
You will need to be able to see and access the inside edging and the lock plate.
Broken upvc door lock mechanism.
How to open the door.
As long as you have selected the correct size central gearbox you will have no difficulty in changing it over.
Draw a line on the lock with a permanent marker where the lock sticks out from the door.
Remove the lock and measure the parts of the lock as shown in the image below.
Especially if you can t get a locksmith to come out to fix your broken door you may have to be stuck in your home until you can get someone out to fix your door.
Find the fixing screw which is usually positioned on the lock plate in between both sides of the lock.
It can be quite a scary thought when your front or back doors stop locking correctly.
To change a upvc door lock start by unscrewing the retaining screw which is located on the faceplate on the side of the door.
Begin by unlocking and opening your door.
A video tutorial on how to replace a full length door lock on a upvc or composite door.
A basic euro cylinder lock replacement for a upvc door lock will cost from 20 and will be cheaper to replace than a high security anti snap cylinder.
Do you need a euro lock change.
Next once the cylinder is loose pull it out of the socket it s in and take the key out.
Using your screwdriver gently loosen and remove the fixing screw from the plate.
Doors can be made from many materials wood aluminium steel and even plastic.
Door locks and mechanisms can be purchased from upvc spares 4 repairs.