Is your old door lock a bit tired and no longer up to the task?
It’s high time you got a replacement.
Can you change door locks yourself, though?
Indeed, you can:
Changing door locks is a simple process that can be done with a few basic tools.
Read on to find out how to change door locks all by yourself.
Table of contents:
- How to replace a lock on a door
- How to replace a rim cylinder lock
- How to replace a mortice lock
- How to replace a Euro cylinder lock
- Wrapping it up
How to replace a lock on a door
There are plenty of different types of door locks on the UK market. And while the process of replacing them follows the same general pattern, there are a few small differences that should be noted.
So, we’re going to look at how to replace a rim cylinder lock, a mortice lock and a Euro cylinder lock separately.
How to replace a rim cylinder lock
To replace an old rim cylinder lock, you’re going to need:
- New rim cylinder lock
- Screwdriver
- Pliers
Step 1: Remove the existing rim cylinder lock
Using a screwdriver, remove the screws that hold the existing rim cylinder lock in place. Once the screws are removed, the rim cylinder lock can be pulled out of the door. If this is proving difficult, use pliers to grip the cylinder and gently wiggle it out.
Step 2: Prepare the new rim cylinder lock
Take the new rim cylinder lock and make sure it’s the correct size and style for your door. Remove any packaging and check that all necessary components are included (e.g., screws, keys).
Step 3: Install the new rim cylinder lock
Insert the new rim cylinder lock into the hole in the door where the old lock was removed. Make sure it’s centred and the keyhole is facing the correct direction. Use the screws that came with the new lock to secure it in place. Tighten the screws until they are snug, but don’t overtighten as this can damage the lock or door.
Step 4: Test the new lock
Insert the key into the new lock and test that it turns smoothly and unlocks the door. Make sure that the door can be locked and unlocked from both sides.
Step 5: Adjust the new lock (if necessary)
If the new lock does not work properly, it may need to be adjusted. Check that the strike plate (the metal plate on the door frame where the lock latch clicks into place) is aligned with the lock latch. If the latch doesn’t fit properly into the strike plate, adjust the position of the strike plate until it lines up with the latch.
How to replace a mortice lock
To replace your old mortice lock, you’ll need the following:
- New mortice lock
- Screwdrivers
- Hammer
- Chisel
- Tape measure
- Pencil
- Screws
- Wood filler
- Paint or stain
Step 1: Measure the old lock
The first step is to measure the old lock so that you can purchase a replacement which is the correct size. Measure the width, height and depth of the lock.
Step 2: Remove the old lock
Use a screwdriver to remove the screws that hold the lock in place. Once the screws are removed, use a hammer and chisel to gently tap the lock out of the door.
Step 3: Prepare the mortice
Use the chisel to create a recess in the door for the new lock. Be sure to make the recess the correct size and depth for the new lock. Test the fit of the new lock before proceeding.
Step 4: Install the new lock
Once the mortice is prepared, insert the new lock into the recess. Use screws to secure it firmly in place.
Step 5: Test the new lock
Test the new lock to make sure it is functioning properly. Insert the key and turn it to ensure that the lock is engaging and disengaging correctly.
Step 6: Finish the job
Fill any gaps or holes with wood filler and sand it smooth. Paint or stain the door to match the rest of the finish.
How to replace a Euro cylinder lock
Here are the materials you’ll need to replace your old Euro cylinder lock:
- New Euro cylinder lock
- Measuring tape
- Screwdriver
- Allen key
- Pliers
Step 1: Remove the old Euro cylinder lock
The first step is to remove the old Euro cylinder lock from the door. This is usually done by unscrewing the retaining screw located on the faceplate of the lock. Once the screw is removed, the lock should slide out easily.
Step 2: Measure the size of the old lock
Measure the size of the old lock with a measuring tape to determine the size of the new lock you need to buy. Be sure to measure the length of the lock from the centre of the retaining screw to the end of the lock on both sides.
Step 3: Purchase a new Euro cylinder lock
With the measurements of the old lock in hand, buy a new Euro cylinder lock that matches the size of the old lock. Ensure that the new lock is the same type as the old one.
Step 4: Insert the new Euro cylinder lock
Insert the new Euro cylinder lock into the door. Ensure that the keyhole is facing the right way and the cam is lined up with the mechanism. Push the lock in until it’s flush with the door.
Step 5: Secure the new lock
Next, secure the new lock in place by replacing the retaining screw on the faceplate. Use an Allen key to tighten the screw until the lock is firmly in place.
Step 6: Test the new lock
Insert the key and turn it to lock and unlock the door. Make sure that the lock operates smoothly and that the key turns easily.
Step 7: Make any necessary adjustments
If the lock is not working correctly, you may need to make some adjustments. If the lock is stiff or difficult to turn, try spraying a small amount of lubricant into the keyhole. If the lock is still not working properly, you may need to adjust the position of the lock to ensure that it is aligned with the door mechanism.
Wrapping it up
Congratulations, you have successfully changed your door lock!
Remember to keep the keys to your new lock in a safe place, and consider making copies for trusted family members or friends.