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How to Replace Lock on a UPVC Door

A uPVC door could be blocked if the multipoint lock becomes misaligned with the frame. The barrel of the lock can be changed to correct this issue. This is a simple fix that doesn't require any special tools.

The first step is to open the door and see where the screw holes are located. The next step is to find the right size lock cylinder that will fit your door.

Remove the old cylinder

The lock's cylinder could be the cause of your uPVC doors squeezing or not closing correctly. It is an easy and inexpensive solution to solve this. However, you should always examine the cause of the issue prior to deciding to replace it. It is possible that the door and frame are not aligned properly. This could cause the lock to be shut. In this instance, it is advisable to contact an expert locksmith and pay for an appointment instead of attempting to fix it yourself.

Before starting the process, ensure that the door is propped or secured to prevent it from closing between steps. Then, using a screwdriver, take the handle off and remove the screws that are holding it. You must remove these screws and put them somewhere safe since you'll need them later to put the handle back on.

The lock-cylinder can be accessed by removing the handle. You will find a screw on the edge of the cylinder. It is usually a color different from the screws that are on uPVC doors. Unscrew the screw and insert the key that is on the lock of the barrel. Once the lock is unlocked you can take it off to replace it with a brand new one.

The cylinder is a part of the lock, which houses the tumblers, and also receives the key. When you insert the key, it aligns itself with the tumblers and allows the barrel to rotate, which unlocks the door. It is not uncommon for the tumblers to get out of alignment, which can stop the lock from working. If this happens, it is essential to replace the old cylinder with a anti-snap and anti-bump cylinder.

Before purchasing a replacement cylinder, take a measurement of the length of the spindle on the handle to determine the appropriate size. There are around 25 different sizes of cylinders and it is crucial to select the right size to fit correctly in your door. It is also a good idea to consider the security level of the cylinder as certain ones are more secure than others.

Take off the barrel of the lock.

The lock barrel is the internal workings of a upvc door that houses the tumblers and receive the key. If the correct key is inserted into the barrel it will align the tumblers and unlock the door. The barrel also contains an cylinder cam that turns to open or close the door. You should know how to remove a barrel from an upvc door to repair it or to replace it if needed.

To remove the barrel of the lock, unscrew the screw holding it in place. The screw is usually inserted into the escutcheon and is easy to find as it is a different colour from the other screws on the handle. Once the screw is removed and removed, you can take off the outer and inner handles. Then, you can begin to remove the door lock.

It's a good idea keep a small flathead screwdriver at hand, since it can be helpful during the reassembly. Take note of the location of each part when you remove the old lock. This will allow you to restore it to its original location. Before proceeding, look for signs of wear, such as worn springs or parts that are rusty.

Install the new cylinder after taking out the old one. The new cylinder will only fit into the lock if it's the correct size. To ensure that you're installing the right cylinder, you should measure the length of the spindle on your current door handle. Compare this measurement to the spindle length of your replacement cylinder in order to determine the proper size.


It can be intimidating, but it's actually quite simple. In addition the fact that you'll save money doing it yourself instead of hiring a professional locksmith. Make sure you follow the steps listed below to ensure you don't ruin your door. You may need professional help in case you're not a pro.

Install the new cylinder

After you've removed your old cylinder, you're now ready to install the new one. You'll need to make sure that you get the right size cylinder to ensure it fits in your door handle. You can test the cylinder by turning it left and right. If the cylinder is equipped with a key hole, you'll need line up the key hole with the lock body so that you can insert your key smoothly.

Once the new cylinder is installed, you'll need to screw it back in place. To do this, use a screwdriver and be careful not to cross-thread or strip it. Test the lock after the screw is installed to see whether it's secured. If it's not locked, you may need to tighten the screw again.

UPVC door locks can experience an extensive amount of wear and tear, especially when they're used regularly. As a result, they're prone to various problems like the handle not working or the key becoming stuck in the door lock. Fortunately, these issues can be solved by adjusting the mechanism of the lock.

If your uPVC door's handle is loose Try loosening the screws holding it. If this doesn't resolve the issue, contact an expert locksmith or specialist. They'll be able to repair or replace the handle and barrel of the lock.

You might be tempted by the idea of changing the cylinder yourself on your uPVC doors, but it is important to remember that this task should only be carried out safely by a professional. If you're not a trained locksmith you could damage the entire system and compromising your security at home.

Before purchasing a new cylinder, it's important to verify that the lock is a multi-point type. These locks are typically found on uPVC as well as aluminium and wooden doors. These types of locks can be fitted into the door with either hand and you must select the appropriate replacement lock cylinder for your door. They are typically bulb shaped cylinders with the key lock on the inside of the cam.

Install the lock

The replacement of the lock cylinder on your uPVC doors is a great method to increase their security. However, you must be aware of the risks associated with lock snapping which is why it is advisable to have an expert locksmith install your new locks. This way, you will not have to worry about a potential burglar breaking into your home.

Door lock issues with uPVC are common, however the good news is that a lot of them can be resolved without the need to replace the entire door or handle. Euro cylinders that are unable to move or become stuck are the most frequent problem. This can cause the key to stop working. Some cases can be fixed by a simple adjustment, which anyone with the correct tools can do.

It is crucial to determine the type of uPVC locking system you have installed on your door. This information is usually located on the label of the manufacturer at the head or foot of your door. Once you know the manufacturer you can find an appropriate replacement. It is also essential to measure the cylinder in order to ensure that you are getting the correct size. Measure from the central circle of the keyhole all the way to the middle spindle. This is the PZ measurement.

Once you have your measurements, you can buy a uPVC handle that is the same dimensions and shape of the cylinder. Be sure to match the length of the spindle as well since this is what connects to the handle. Then, take out the handle that was previously used. Screw in your new handle. Use pliers or a screwdriver to tighten the handle. Be cautious not to over tighten as this could cause damage.

Once Continued is installed it is time to screw back the long screw. It will take some time to get the screw exactly where it needs to be so that it doesn't fall on any object. Then, you can test your uPVC door to make sure that the lock functions properly.

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