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How to Repair Double Glazed Windows
There are a few telltale indicators that indicate that your double-glazed windows require repair. Water ingress or draughts leaking through the frames are an obvious indication of damage to your windows and must be fixed as soon as is possible.
However, misting can also be an indication that your window seals need replacing. Replacing the seals will solve the issue and will stop condensation, draughts, or leaks.
Broken Panes
One of the most common issues a double-glazed window face is broken glass. While double pane windows are more difficult to break than single-pane ones, accidents do occur and you'll want to repair a damaged window as quickly as possible.
The first step to take is to take out any glass fragments that are loose that are still in the frame. Be sure to wear a pair of gloves and eye protection while doing this, since glass can be sharp. Once the shards have been removed, check the floor of your home for any additional loose pieces. It's also recommended to remove any hooks made of metal that hold the panes together.
After the glass has been removed and the glass is removed, you can begin the process of removing the old glazing compound and glazing points (small fasteners that secure the glass in the window frame) and replacing them with new ones. It is a long-winded procedure, and you'll need a few tools to accomplish the task. This includes latex glazing putty; metallic glazing points; pliers; a heat gun, and a putty knife.
It is best to begin at the top and work your way down in removing the old points and glazing compound. This will prevent getting any of the sash's wood or paint stuck to your tool. If you need to remove a portion of the wood from the sash use the utility knife or chisel instead of chemical strippers which could cause damage.
After that then sand the wood. When the wood is smooth then you can seal it with linseed or clear wood sealer. This will shield it against water and future damage.
You can make a few quick solutions to repair cracks in a double-pane window. But these fixes won't fix the problem and should only serve as an interim solution. The use of silicone caulk can aid in sealing the gap. However it is essential to use high-quality caulk with proper application techniques.
Condensation
If you've noticed water or mist between the glass panes of your double-glazed windows, it's a sign that one of your windows has a broken seal. This could be a problem because it stops gas or the insulating air from getting trapped between the two glass panes, so it won't do its job effectively and will lead to temperature changes that result in condensation forming.
Fortunately, this can be easily fixed by a double glazing expert. To resolve the issue your window company will take out the window sash that is affected and IGU (insulating glass unit) before blowing in a new gasket to create a strong and airtight seal to prevent condensation from occurring again. They will also use drying agents to help the area dry out and stop the condensation from recurring.
Another reason you might notice a misty appearance between the glass panes of a double-glazed window is that the frame has moved over time, which breaks the seal that is so crucial. This can be a major issue since it means that your windows will not function correctly and will lose energy efficiency.
While it is possible to replace the panes of a double-glazed Window, this can be very expensive and is normally only necessary when there are serious issues with the window that are beyond repair. If you have a problem with your double-glazed window and are still within the warranty period then you might be able repair it at no cost or for an affordable cost.

Check your warranty terms before calling the company to find out if they can resolve the issue without replacing the whole window. Double-glazed windows are usually covered by guarantees of between 10 to 20 years, which means you might find they can repair the damaged window units rather than replacing them completely. If this is the case, they'll likely send a specialist out to repair your double-glazed windows and are usually capable of doing it quickly. This is a cheaper alternative to buying and installing new double-glazed windows. It's also better on the environment!
Broken Locks & Handles
It could be a major problem if your window handle is broken, or if it is difficult to open. You won't be able use your windows. This can also give burglars the chance to gain entry into your home. There are a variety of options to fix it however the most effective method is to speak with an uPVC expert. Based on the severity of the problem, they can usually come and repair it for you or at the very least, provide you with an alternative handle.
There are a few different kinds of window locks, but the most common one is the Maco or Mila locks which are typically found on uPVC frames. These locks utilize bayonet-style rods to lock, and they are able to easily seize up. The handle's nose is stuck in the popped-out position, and it will not return to the wedged lock position. This can be a very frustrating problem, but it can be fixed by following a few steps.
To fix local double glazing repair to fix the issue, you'll need to first remove the handle. This should be easy enough with the aid of a screwdriver. After removing the handle you'll be able to view the screws that attach the lock to the frame. After the screws have been removed, you can attempt to grab the bolts using the help of a wrench or a pair pliers. If this is unsuccessful it is possible to insert the tool into the gap between the window and frame (the gap may differ on the opposite side of the window) and create a "u" shape using your hands to attempt to grasp the bolts.
If you can manage to remove the shoot bolts, then you can close the window by adjusting the handle to the closed position. But, it will not open again with the handle because the gearbox (espag or espagnolette) is likely to be damaged. You can replace the gearbox (espag or espagnolette) without the shoot bolts so that the window will still be opened using the handle.
Broken Hinges
You may need to replace or repair your uPVC windows hinges if they are not operating smoothly. It could be that the window was opened too vigorously, or that the hinge snapped. They could also have a flaw. Thankfully the replacement of the hinge is simple and quick and there's no need to purchase windows from scratch and you can have your old ones fixed instead.
Remove the hinges. To do this, remove the screws that attach the frame to the hinges. After you've removed your hinges and replaced them with plywood boards cut to the proper size. The plywood should be thicker than the hinges that came with it to help support the weight of the window when it is opened and closed. It is also recommended to use wood filler to ensure that the hole that was left by the hinge is filled completely and will not leak or loosen in the future.
After you've filled holes and replaced the hinges, then you'll require painting the doors. Use a good paint to make sure it lasts as long as is possible. Once the paint is dry, you can re-attach the window and tighten any loose screws.
Window hinges also require regular maintenance. Cleaning regularly the friction stay track and lubricating hinge mechanisms will help them last longer. You can also use wood preservatives to shield them from the elements. This will prevent rusting and ensure they look great for as long as you can.
Double-glazed windows are more energy efficient than single-glazed ones, and can help you save money on heating. But, just like any other aspect of your home, windows are susceptible to wear and tear and may require replacement or repair over time. If you're experiencing any of the signs that your double glazed windows aren't functioning properly it's worth having them examined by our experts in Preston.