Is it possible to repair a broken UPVC window lock?
UPVC window locks provide security for both us and our homes. However, with constant use these locks can become damaged, requiring repair to ensure they continue to work effectively. But how easy is it to repair a UPVC window lock? This blog aims to answer this question, as well as exploring why a lock may break, the methods you can try to repair the lock, and the ways you can prevent damage from occurring in the first place.
Common Signs Your UPVC Window Lock Is Broken
There are a few signs to look out for that will indicate a problem with your UPVC window lock:
- Difficulty in turning or moving the window handle
- A misaligned window latch mechanism
- Visibly worn or corroded parts
- A jammed window lock.
Why UPVC Window Locks Fail
To understand why a UPVC window lock may fail, you need to understand how a UPVC window lock works. There are a few different parts that work together to make your window lock when it is closed. These include:
- Handle
- Gearbox
- Shootbolts
- Shootbolt rollers cams
When you turn the handle of your window, the gearbox, which is attached to the handles, pushes the shootbolts and roller cams out to the furthermost corners of your window. This then locks it. There are several reasons why the lock on your UPVC window may fail. These include:
- Dirt and debris have built up in the mechanism
- The mechanism has corroded, and rust has built up
- Misalignment due to general wear and tear
- Misalignment due to forced entry
How to Open a UPVC Window with a Broken Lock
If you can't open your UPVC window because of a broken lock, don't panic. There is a way to try and open in. Just follow these steps*:
You will need a pair of pliers and a thin tool that can be bent to 90 degrees, such as an allen key.
- Move the window handle into the open position.
- Insert the thin tool between the window and the window frame where the shootbolts are located. Remember to do this on the edge where the handle is located.
- Push the tool towards the window handle, with the aim of trying to hook the shootbolt roller cam.
- Your tool should stop when it makes contact. You then need to pull it towards the window handle to release that side of the window.
- If the other edge of your window is jammed, you may have to repeat the above steps but at the opposite end of the window.
It is worth remembering that UPVC can scratch and mark easily, so make sure to be careful if you are trying this method.
How to Repair a Broken UPVC Window Lock
It may be possible to repair your broken UPVC window lock yourself, but the way you do this will depend on the fault.
Corroded or damaged parts
Start by cleaning and lubricating the affected parts. If this doesn't work, you may need to consider replacing the UPVC window gearbox.
Misaligned locks
Force or regular use can cause the lock on your UPVC window to become misaligned. To repair, loosen the screws, realign and tighten.
Jammed lock
A jammed lock can be caused by dirt and debris collecting in the mechanism. You can try to repair this by gently cleaning and lubricating the lock.
Broken key
You can attempt to extract the key by using needle-nose pliers or a flathead screwdriver. Remember to be extremely careful!
Loose parts
If you spot any loose lock parts, tighten using a suitable wrench. However, if they do not tighten you may have to replace the loosened parts.
When It's Time to Replace the Window Instead
If you have a damaged UPVC window lock and have tried to repair it or replace it, and you're still experiencing problems, it may time to buy new windows. Upgrading your windows to new UPVC windows with modern multi lock systems will not only reduce the risk of your locks breaking but also increase security for your home and provide peace of mind for you and your family. Why not explore our full range of UPVC windows designed with durability, security, and energy efficiency in mind.
Tips to Prevent Future Lock Failures
There are ways to prevent damage occurring to your UPVC window locks. These include:
Regular cleaning
Regularly cleaning the lock can help to reduce the risk of your locks damaging. Use a clean cloth to wipe the exterior of the lock and a cloth with warm water and a mild detergent for the interior. Always ensure the lock is completely dry after cleaning, to prevent moisture build up. Doing this once a month will really help to preserve the performance of the lock.
Occasional lubrication
Lubricating the moving parts of a lock every 3 to 4 months will help the mechanism run smoothly. Lubricants such as WD40 or graphite powder are ideal for this. If you notice that your lock is starting to stick, it may be an indication that it lubrication is due.
Regular checks
Regularly checking your window locks for damage, rust, or dirt will allow you to spot issues before they become more serious. This will allow you to repair any damage quickly and effectively.
Final Thoughts
There is no need to panic if you're UPVC window lock breaks. They can often be repaired very simply. However, replacing old windows with new, more modern UPVC windows is the long-term solution for increasing your home's security. If you're looking to upgrade your windows or would like further information about our wide range of windows, call our friendly, expert team today on 0800 22 77 77.
* Broken Mechanism On UPVC Window: What To Do? | Checkatrade
