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Five Killer Quora Answers To Double Glazing Door Lock Repairs
Double Glazing Door Lock Repairs

Is your uPVC window or door mechanism faulty? Maybe the window or door handles aren't able to connect properly or are difficult to use.

It is crucial that the double glazed doors operate smoothly, otherwise you'll lose energy and increase the likelihood of burglary. Owen the Locksmith can fix your door lock at a reasonable price.

Snapped Key

When a key snaps off inside a lock, it can be incredibly frustrating. It can also be a security risk, as it may make you vulnerable to an intruder if the door is not locked. There are a couple of quick fixes you can try to resolve the issue and make your door work again.

Be calm. If you panic and begin playing around with your keys, you might just end up pushing the damaged piece of the key deeper into the lock, making the situation even more difficult.

Spray WD-40, or another penetrating lubricant, into the lock. This will help the broken piece to emerge more easily. You can also make use of a screwdriver to break pieces that could be blocking the way. If you have a chunk of the key that's stuck and is not being removed, grab it with a paperclip or other thin metal object and pull it. Both of these methods work, but be cautious not to push the damaged piece of the key further into the keyway.

Some paperclips have grooved edges, which can work in a pinch to extract hooks and some jigsaw blades are also suitable for this purpose. If you don't have any of them handy, you can make use of needle-nose pliers to bend and create hooks. You can also use a pair of tweezers grab and remove the last piece of broken keys.

If you are unable to remove the broken piece of key then you can use a lock deicer. This is usually available at most hardware stores, and it is used to freeze any moisture or ice that may be inside the lock.

If none of these solutions seem to work, it might be time to contact a locksmith. The experts at Fitlocks can quickly fix issues such as broken handles and broken keys with uPVC locks and door mechanisms. They can also modify your double glazing door mechanisms to allow them to operate more easily. You can request a double-glazing repair online or contact us to discuss your needs.

Broken Cylinder

A broken cylinder is an immediate security risk. It's fortunately a simple repair for a professional locksmith to complete. A locksmith will have to tap the cylinder in order to repair it. They can do this with the hammer or any other tool, but the most efficient way is to employ a long match or piece of wire. Place the match or wire end near the keyway. After that, the locksmith can strike the lock and break it open. This is far better than using a heavy hammer that can cause damage to the lock.

The most frequent cause of cylinder head cracks is overheating. This can occur when the cylinder block and head are made of different metals, like cast iron and aluminium. Different metals can be heated and cool at different rates. This can cause localized hotspots to expand more quickly than the rest.

Another possible cause for cracks in the cylinder is corrosion. If the cylinder head as well as cylinder block are not properly maintained, it can lead to rusting or corrosion, which may cause them to expand at a a higher rate than they ought to. This could lead to cracks over time.

If your uPVC window or door lock is stiff and requires more pressure to turn it could be due to a variety of causes. A defective locking mechanism, misalignment or the wear of the handle are typical causes of this problem.

Fortunately, this is an easy and cost-effective fix for the majority of homeowners with double glazing. A professional locksmith is able to solve this issue within an hour of arriving at the home. They can replace the locking mechanisms, or change the window handles and change the gearboxes, depending on your particular requirements. A locksmith with experience will always be able to advise you on the most cost-effective solutions for your home. They may suggest upgrading to 3 Star TS007 Euro Cylinders which offer an additional layer of protection from burglars. It's a small price to pay for the security that comes from knowing your uPVC doors are safe.

Broken Handle

It's not surprising that window handle locks can break. They have complex mechanisms that become less effective over time. It can be difficult to determine the reason behind a broken window handle lock and repair it correctly.


The issue could be with the internal locking mechanism or the latch, fixing the broken handle can improve your uPVC double glazing door's security and help you to stop the draughts. It is costly to repair or replace your handle if it is not done correctly and could also harm the frame and the lock of your door.

Screwdriver: With the window open, loosen the screw holding the handle. The screw should be on the inside face of the back plate, which is usually covered by an attractive cover for the screw for aesthetic reasons. Be sure not to damage any of the internal components inside the handle, for example the plates or levers that are on the opposite side of the spindle. It is best to keep them in the same order so that you can replace them again if needed.

Then, turn the handle until it's 90 degrees to the window frame. Finally, loosen the screw on the back of the handle that fixes it to the internal spindle using another screwdriver. Once the screw is loose, you can remove the handle and take the broken spindle out. Replace it with a brand new one, making sure it's the same size as the old one (you will typically find them on the internet or at hardware stores) and then securely screw it in place. Be careful not to overtighten because this could cause damage to the handle or the window frame.

Make sure the new handle is installed after which you can close and test the handle. It is likely that it will operate smoothly and you'll be able to open your window again.

While you're working on the handle, make sure to check your uPVC windows are shut properly. If they aren't closing properly, you may experience damp or draughts inside your home. You could also compromise the energy efficiency of your home. A local window company, such as Core Sash Windows, will be in a position to adjust the hinges on your window frames to ensure they shut correctly.

Broken Spindle

It is more likely for the spindle to break rather than the handle. This is especially common with uPVC tilt-and-turn windows. These types of windows require a handle which operates a locking mechanism in the frame of the window. The handle is attached to a central rod which is then activated by a series of cams that look like mushrooms, they secure the frame of the window. If the dead latch mechanism fails to open when the handle is turned, it is likely that the spindle has been damaged This can be an extremely frustrating issue.

Luckily, there are sites to rectify this issue. A reputable locksmith can swiftly and effectively fix the issue. They can disassemble the window handle by using a tool that removes the wheel component of the mechanism where the spindle is. This is done without causing any damage to the handle or causing any other damage to the frame of the window.

After removing the wheel, the technician can inspect the spindle and identify what caused it to break. This involves breaking down the spindle into its component parts and carefully recording their general condition as well as any specific areas of damage or excessive wear. This process is typically performed in a clean environment by skilled technicians.

Then, clean the damaged spindle. This will help get rid of any debris or dirt that could be hindering it from operating normally. The spindle can then be repaired or replaced. If it is being replaced the technician will need an identical dowel size to the original and drill mating holes into both parts of the spindle. This will ensure that the new spindle is an exact fit with the handle.

If the spindle is damaged and cannot be repaired it may require replacement completely. Home centers offer generic replacements but if the style of your window is unusual then you will need to speak with a woodworker or cabinet maker who can replicate the exact model for you. Once the new spindle has been installed it can be positioned to the handle by lining up the screw holes in the handle with the frames existing screws. Once the handle is securely in place, you can use your uPVC windows.

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