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How to Replace a UPVC Door Lock

If you've recently moved to a new residence or had a burglary at your property, changing the locks on your doors is a crucial step to regaining security. But the process isn't quite as difficult as it may appear.

All you need is a bit of preparation and the right tools, and a locksmith's visit will be avoided.

Identifying the problem

It is crucial to identify the signs of an uPVC lock that isn't working properly. If you're struggling to turn the handle or hear strange sounds when operating the mechanism, it could indicate that it's in need replacement. Don't wait until your lock is totally broken before replacing it. This could leave you vulnerable to burglars.

There are several possible causes for the uPVC door not to lock. The key might not fit correctly. The lock could be damaged or worn. If the uPVC handle is loose or floppy then it is time to replace the mechanism.

Another common issue is when the handle becomes stuck in the locked position. This can be caused by many things like broken hinges in the door or excessive force on the handle. Try tightening the screws that hold the barrel part of the lock in place to fix this.

Your uPVC frame may not be aligned correctly with your uPVC doors. This could cause the handle to become stuck in its locked position and stop the latch from working when you shut the door. To fix this, you can use a lubricant to make it easier to open and shut the door.

You can also apply an lubricant made of graphite to lubricate your handle and locks. It will not attract dust, as opposed to petroleum-based products. Apply the lubricant every six months or more frequently if the handle is stiff. This is a simple maintenance procedure that can assist in keeping your doors in good working condition for a longer period of time.

It is never advisable to use force to open a handle or lock in the event that it gets stuck. It is recommended to call a locksmith when you have issues with your uPVC lock. This could damage the mechanism and handle, and lead to additional costs. If you have the right information and a bit of effort you can change the door lock made of uPVC yourself without the need to hire locksmith.

Choosing the Right Lock

A replacement for a door lock made of uPVC might seem difficult but it is possible to do it quickly and safely using the appropriate tools. When replacing a uPVC handle, it is important to make sure that the new lock is properly sized. This will ensure that the handle fits the hole of the spindle correctly and that the door can be closed and locked without a key.

The dimensions of a uPVC lock is determined using two standard reference points. The first point is the center of the circular portion of the keyhole that is located on the front of the door up to the center of the square spindle hole (the connecting point where the handle is located). This is referred to as the PZ measurement. The second measurement is taken from the bottom edge of the uPVC frame up to the middle of the round portion of the keyhole on the top of the door. This is the backset measurement.

It is crucial to select the best lock for your multipoint locking system. It's also a great way to enhance the security of your home. Some uPVC locks come with anti-snap locks which reduce the risk of the cylinders snapping. This offers greater security when compared to conventional locks.

Certain uPVC door issues are difficult to solve without the assistance of a professional with experience. A stiff or jammed lock can be caused by dust or dirt that has accumulated in the mechanism. Attempting to force the lock to open may make the situation worse and damage the internal components. In such instances it is recommended to contact a professional locksmith who will disassemble the lock and clean it, then apply an oil-based lubricant.

Another typical uPVC door problem is an alignment issue with the locking mechanisms. This can be caused by weather conditions or wear and wear and tear. However, it can also result from incorrect installation or adjustments. Incorrect alignment, if not checked, could expose your home to a break-in.

A locksmith who is skilled in doors made of uPVC can look at the locking mechanisms and recommend the right solution. They can replace broken springs and adjust locking mechanisms to ensure that they function smoothly. Additionally, they can install a range of accessories for your uPVC doors, such as peephole cameras as well as door security chains.

Installing the Lock

It's time to replace your uPVC lock cylinder or door handle if it is jammed. A damaged uPVC lock can compromise the security of your home, therefore it's essential to replace it as soon as you can. A professional locksmith can assist you install a new lock and ensure that it's installed correctly to prevent any future problems.

Making changes to the uPVC lock on your door doesn't have to be expensive or complicated. In fact, it's a relatively simple task that can be accomplished by anyone with a basic DIY skill. It is essential to be cautious throughout the process and always adhere to the directions of the manufacturer of your specific model uPVC lock.

Remove the handles from your uPVC doors. There are typically two screws that attach the handle to the door, and they should come out easily with a screwdriver. After the handle is removed, you can take off the handle inside and the cylinder. Keep an eye on both the cylinder number and handle number to allow you to purchase replacements if you need to.

Next, open the lock on the barrel by turning it to the right. Once you've opened the lock, you can remove the long screw that secures it. The screw is usually different in color than the other screws on the frame and is located on the bottom. After you have removed the screw, you can remove the lock from the barrel.

Replace the new lock in the same manner as the old one, making sure that it fits snugly and is in alignment with the doorframe. Once you've secured the lock, you can put in the handle and tighten the screws. Check the lock to make sure it functions properly.

It's time to replace your uPVC handle if it gets stuck or doesn't turn or is a bit loose. Locks that aren't working properly are often targeted by criminals who want to gain access to your home, which is why it is essential to take the appropriate steps to safeguard your home and family. A professional locksmith will be able to guide you through the process and give expert guidance on how to increase the security of your home.

Testing the Lock

If you're planning on replacing your uPVC door lock, it's vital that you carefully prepare for the job. It is essential to read the manual provided by the manufacturer for any instructions, and also to prepare all the tools and equipment needed. It's also essential to take the time to ensure you're secure when working. This means placing a doorstop, or a block of wood beneath the door to ensure it's steady and wearing gloves to shield your hands from sharp edges.

Once you've properly prepared for the job, it's time to replace your uPVC door lock. It is essential to measure your door and cylinder precisely and take note of these measurements to ensure a proper fit. This is essential to ensure that the new lock cylinder will fit perfectly. repairmywindowsanddoors.co.uk will guarantee both security and convenience.


There are many common problems that can cause problems for uPVC door locking mechanisms, such as issues with alignment and worn-out or stuck lock cylinders, as well as jammed or stiff locks. These issues can be easily solved by locksmiths.

To repair a stiff or locked lock that is jammed, the first thing to do is get rid of any dirt or debris that could be causing the problem. You can accomplish this by using a dry lubricant such as graphite powder, or PTFE instead of an oil-based one, as these can attract dirt and dust.

After the lock's cylinder has been removed, you will need to clean it. It is also important to examine the barrel of the cylinder and look for evidence of damage or wear. If everything is in good order then you can put it back together and test it to ensure that it works as intended.

A key being lost or broken can be a frustrating experience, and can even compromise the security of your home. If you follow these steps, you can quickly gain access to your home and restore security. If you're still experiencing difficulties with your uPVC lock, it's recommended to consult an expert to manage the repair process in a timely and efficient way. They'll have all the tools and knowledge needed to disassemble the lock, clean and oil its parts and then align it within the door frame.

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