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How to Replace double glazing window lock replacement RepairMyWindowsAndDoors on a UPVC Door

A door made of uPVC can become jammed if the multipoint lock becomes not aligned with the frame. The lock barrel can be changed to fix this problem. It's simple enough to do yourself and does not require any special tools.

The first step is to open the door and see where the screw holes are located. You can then find the correct size lock cylinder to fit your door.

Take out the old cylinder

The lock cylinder could be the reason behind your uPVC doors squeezing or not closing correctly. It is easily and inexpensively solved by changing the cylinder. It is important to determine the cause of the issue before replacing it. It's possible that the frame and door aren't aligned correctly. This can cause the lock to shut. In this situation it is recommended to call a locksmith and pay for an appointment instead of attempting to do it yourself.

Before you begin the process, make sure the door is opened or secured safely to ensure it does not close between steps. Then, remove the handle by using a screwdriver. Then, remove the screws that secure it. Keep the screws in a secure place as you will use them later to attach the handle.

The lock-cylinder can be accessed by taking off the handle. Check the edge of the cylinder, and you'll see a screw, which is usually colored differently than the rest of the screws on the uPVC door. Unscrew the screw, and then use a key to open the lock of the barrel. When the barrel lock is unlocked, you can take it off and replace it with a brand new one.

The cylinder is an element of the lock which houses the tumblers and also houses the key. When you insert the key it aligns with the tumblers and allows the barrel to rotate, which then unlocks the door. It is not uncommon for the tumblers to become out of alignment, preventing the lock from functioning. It is crucial to replace your old cylinders with anti-snap, anti-bump cylinders.

It is important to take a measurement of the spindle of the handle before purchasing a replacement cylinder in order to determine the right size. There are approximately 25 different sizes of cylinders, and it is important to choose the correct size so that it will be able to fit in your door. Be aware of the security level since some cylinders are more secure than others.

Remove the lock barrel

The lock barrel is the internal parts of a upvc door that houses the tumblers and receive keys. If the key that is correct is inserted into the barrel it will align the tumblers and unlock the door. The barrel also houses the cam cylinder, which rotates to open and close the door. It is essential to know how to remove the barrel from a upvc door to make repairs or replace it if necessary.

To remove the barrel of the lock take off the screw that holds it in place. This screw is usually embedded in the escutcheon and easy to locate since it's a different colour than the other screws on the handle. After you've removed the screw, you can remove both the outer and inner handles and start to remove the door lock.

It's recommended to keep a small flat-head screwdriver handy as it will come in handy during the reassembly process. Make note of the position of each component as you dismantle the old lock. This will assist you when you reassemble it in the original position. You should also check for indications of wear and tear, such as worn springs or rusty elements, before you continue.

Install the new cylinder following removal of the old one. The new cylinder can only be installed into the lock if its dimensions are correct. To ensure that you're installing correct cylinder, take a measurement of the length of the spindle that is on your existing door handle. Compare this measurement to the spindle length of the cylinder you're replacing to determine the proper size.


It can be daunting, but it's actually very straightforward. You'll also save money by doing it yourself instead of paying a locksmith. Make sure you follow the steps below so you don't damage your door. You might require assistance from a professional if you are not experienced.

Install the new cylinder

After you've removed your old cylinder, you're now ready to install the new one. Make sure to select the right size cylinder, so that it is able to fit in the 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 align the key hole with the lock body so that you can insert your key without difficulty.

After the new cylinder has been installed, you'll need to screw it back in place. Make use of a screwdriver for this, but be careful not to strip or cross-thread the screw. Once the screw is in place, check the lock to see if it's locked or not. If it's not locked, you may need to tighten the handle screw once more.

UPVC door locks can be subjected to a lot of wear and tear if frequently used. This means that they're susceptible to a variety of issues like the handle not working, or the key getting stuck in the door lock. These problems can be solved by adjusting the locking mechanism.

If the handle on your uPVC is loose take off the screws that secure it. This may solve the problem, but if it doesn't, you should call a locksmith or a specialist. They can repair or replace the handle and barrel of the lock.

You might be tempted to change the cylinder yourself on your uPVC doors However, it's important to keep in mind that this job should only be carried out safely by an expert. If you are not a locksmith, you could end in causing damage to your entire system and compromising the security of your home.

Before purchasing a new cylinder, be sure to verify if the lock you are purchasing is a multi-point lock. These are the type of locks found in uPVC doors, aluminum doors, and some wooden doors. These types of locks can be inserted into any door therefore, you need to select the appropriate replacement lock cylinder to fit your door. They are typically bulb-shaped cylinders that have the key lock on the inside of the cam.

Install the lock

Replacing the lock cylinder on your uPVC doors is a great option to increase the security of your doors. You should be aware of the risks of snapping locks and you should hire a professional to install your new locks. This way, you will not have to worry about a burglar who might break into your home.

uPVC door lock problems 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 do not move or are stuck are the most common issue. This could cause the key to stop functioning. Certain cases can be resolved with a simple adjustment that anyone with the proper tools can do.

It is crucial to know the kind of uPVC lock that is fitted to your door. You can usually find this information on the manufacturer's label at the foot or head of your door. Once you know the manufacturer you can find an appropriate replacement. You should also measure your cylinder to find the proper size. Measurement should be taken from the center circle of the keyhole all the way to the middle spindle. This is referred to as the PZ measurement.

Once you have your measurements, you can purchase a uPVC handle that matches the size and shape of your cylindrical. Make sure that the handle is in line with the length of the spindle because that is what connects the handle. Next, remove the old handle and screw into the new one. You may require pliers or screwdrivers in order to tighten the handle, but be cautious not to overtighten it as this can cause damage.

Once the new handle has been put in place, you will need the long screw to be screwed back. This process will take a bit of time, as you will need to place the screw in the right position to ensure it's not catching on any object. Then, you can test your uPVC door to confirm that the lock is functioning correctly.

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