Replace Lock on Your UPVC Door Yourself

You can change the lock on your upvc door yourself, as long as you have access to both sides of the faceplate. You'll also need a screwdriver, a long bolt, and the key.

Sometimes, a door mechanism made of uPVC will become stuck because it's not lubricated or something inside has been damaged. It's easy to fix if you are aware of what you're doing.

Preparing for repairs

uPVC doors can be subject to a range of issues and some are more severe than others. You may be able solve the issue yourself if your uPVC lock is stuck or misaligned. It is essential to ensure that you do not damage the mechanism of the lock which could cause the problem worse. Also, be wary of using lubricants, such as grease or oil, as they could cause the locking mechanism to become sticky. Instead, you should use light machine oil or graphite because they are more secure and won't harm the uPVC.

It can be difficult to take off the uPVC door barrel after it is put in. Therefore, you should be aware of your actions prior to beginning. You should seek out locksmiths if you're unfamiliar with this kind of repair. They will ensure that the work is done properly. This will also cut down on time as they will be able to finish the job quickly and efficiently.

The first step is to unbolt the screw that holds the lock in place. This screw should be a different colour to the other screws on the door. It's located near the lock faceplate, on the inner edge. After removing the screw, you can slide the barrel out. When the lock is gone you can then take off the handle and replace it with an alternative.

It is essential to be aware that a locked uPVC can be shut and opened without the handle. The uPVC door has a built-in security system, known as multi-point locking. This system consists of two hooks on the top and bottom, as well as an latch or deadbolt in the middle. This creates a sturdy and secure door.


If your uPVC door is locked but you are unable to open it the most likely cause is with the locking cylinder. The uPVC lock cylinder can be fitted with a special key and is therefore not as difficult to break or move like other locks. If you're unfamiliar with this kind of repair, it's best to get an expert locksmith.

Removing the Cylinder

The cylinder, also referred to as the barrel, is a tiny component in the handle of a uPVC door that allows you to lock and unlock the door. It is usually made from pin-based technology and although it has been working for quite a while however, it is currently being targeted by criminals seeking to increase their chances of gaining entry into your home. By replacing the cylinder with a better lock, you can dramatically improve the security of your home without the need to purchase an entire new locking mechanism.

First, take the handle from the door by loosening the screws that secure it using a Phillips-head screwdriver. Save the screws so that you are able to reattach the handle after the job is completed. Find the pinhole that binds the handle to the interior trim. Find an old-fashioned paper clip or pin that can be straightened, and then put into the hole. Apply pressure to the pin while you rotate the handle to release it. Once it's released, you can pull the handle toward you to pull back the latch within the cylinder.

Once the old cylinder is loose the cylinder can be removed by hand. Be careful not to harm the threads on either side of the cylinder, or the cam in the middle. If the cylinder does not slide out easily, the handle furniture or locking mechanism might be causing it to pinch. It will need to be loosen so that it is able to slide out.

When you are ready to replace the cylinder, you should look for one that has been certified by an independent testing company to meet minimum standards for anti-snap and anti-bump protection. There are a variety of types of locks available on the market. It is important to understand your needs before choosing a replacement.

If you can, bring the old cylinder with you to the store so that you can make sure that you're purchasing a compatible replacement. There are approximately 25 different sizes of lock cylinders that are available and it is therefore essential to accurately measure yours.

Reinstalling the Cylinder

If your locks aren't operating correctly, you may need to replace them. You may need to replace your locks due to various reasons, including to increase security or meet the requirements of insurance. It is possible to replace the lock if you have lost keys, or you recently moved house. Whatever the reason is, replacing your uPVC lock isn't an issue and can be completed easily by anyone with a bit of guidance.

First, ensure that the door is propped up or secured so that it does not close during the process. Remove the screws that secure the handle using a screwdriver. Remove the screws slowly, or small pieces may fly off. Slide out the exterior and interior handles simultaneously after removing the screws. This is a bit difficult, but it's crucial not to force anything. This could damage the mechanism of the handle and even break the handles.

Locate replacement locks for double glazed windows on the outside of the door after you have removed the handles. This is typically a large screw that's in line with the lower portion of the cylinder. It should be a distinct colour from the other screws and be easy to identify. Twist the screw to loosen it and then remove it.

After removing the screw, you will be able see the cylinder in its socket. Insert your key, and turn it both left and right. This will unlock the cylinder. Once it's unlocked, you can apply a moderate amount of tugging to take the cylinder out of its socket.

After you've removed your old cylinder, insert your new one into its socket. If you are having trouble, try wiggling or tugging again. If you're unable to get the cylinder inside, consider replacing the lock altogether.

If you are replacing a euro-cylinder ensure that it is equipped with anti-snap or anti-bump protection. These features will increase the security of your home and make it harder for criminals to break into the lock.

Reinstalling the Handle

There are a couple of reasons your uPVC handle might not be functioning correctly. Sometimes it's just a case of wear and tear however, sometimes the issue is more serious. It could be that the lock is damaged and cannot be repaired. In this instance it is recommended to replace it.

The first thing you need to do is to remove the old handle from the door. It's not difficult and usually you can do it by unscrewing the two screws that hold the handle in place using the help of a screwdriver. Once the screws are removed there should be nothing to hold the handle to the door. it should fall away with a minimum of effort.

It's a good idea to clean the spindle and back plate after taking off the handle. This will ensure that there is no dirt or grime there to cause problems with the replacement handle. It is also recommended to clean the handle with a soft cloth to remove any dirt or dust that could impact its performance.

Before you reinstall a new handle, ensure that it is fitted. In the majority of cases, the hook plate and the roller face plate are set into the case of the central lock. There shouldn't be any gap between them. If the handles do not fit correctly, they can put pressure on the centre-lock case and cause it to break.

When you are ready to reinstall the handle, start by sliding the new spindle into the hole on the exterior handle and then into the one on the inside handle. It may be necessary to tap the spindle gently using a mallet or hammer to get it to slide into place. Once you have it in place there is likely to be a small retaining screw on the end of the spindle that you must tighten, line up the holes and replace the screw.