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How to Repair Double Glazed Windows There are certain indicators that tell you your double-glazed windows must be repaired. Water infiltration or draughts that enter the frames are an obvious indication of window damage and must be repaired as soon as is possible. Misting may also indicate that the window seals are in need of replacement. Replacing the seals can fix the problem and prevent condensation, draughts or leaks. Broken Panes Broken glass is among the most common problems that double-glazed windows have to face. Double pane windows are less likely to break than single pane windows however, accidents can occur and you'll need to fix a broken window as quickly as possible. Remove any loose glass fragments that might remain in the frame. Wear eye protection and gloves when removing the glass, because it is extremely sharp. After the shards have been removed, check the floor of your home for any other pieces that are loose. It is also an excellent idea to search for any metal hooks that could be holding the panes together and remove them as well. Once the glass is removed then you can begin the process of removing the old glass compound and glazing points (small fasteners that secure the glass in the frame of the window) and replacing them with new ones. It's a lengthy process that requires the use of a few tools. You will require latex glazing putty, metal glazing points, pliers, a heatgun and a putty blade. When removing the old glazing compound and points, it's a good idea to start at the top of the sash, and begin to work your way down. This will keep any wood or paint that is left in the sash from sticking to the tool. If you need to remove a portion of the wood from the sash make use of an utility knife or chisel instead of chemical strippers which could cause damage. Finally, when you're finished make sure you scrub any wood that's not finished to smooth it. When it's smooth then you can apply Linseed oil or a clear wood sealer to safeguard it from future water damage. There are a few simple fixes to repair a cracked double pane window. But these fixes won't fix the problem and should only serve as a temporary solution. Utilizing silicone caulk will help seal the gap. However, it is important to use a high-quality caulk and the correct application techniques. Condensation If you notice any moisture or mist between your double glazing glass panes it means that the window seal isn't working. This could be a major problem as it prevents the gas or air that is used to insulate being trapped between two panes. Fortunately, this issue can be easily repaired by a double glazing expert. To resolve the issue your window company will remove the window sash that is affected and IGU (insulating glass unit) before blowing in a new gasket. This will create a strong and airtight seal to stop condensation from happening again. They will also employ drying agents to aid in drying the area out and prevent the condensation from happening again. You might also notice a mist between glass panes in double-glazed windows when the frame has moved over time. This can break the seal. This could be a problem as it means that your windows will not function correctly and will lose their energy efficiency. It is possible to replace a double-glazed window's panes but this can be expensive and is usually only required if the window is beyond repair. If double glazing repair experiencing problems with your double-glazed window and are still within the warranty period then you might be able to get it repaired at no cost or at a reduced price. It's a good idea to check the terms of your warranty prior to you call the company to find out whether they are able to solve the problem without replacing the entire window. Double-glazed windows are usually covered by warranties of between 10 and 20 years, so you might find that they can repair the defective window units instead of replacing them completely. If this is the case they'll likely send a specialist out to repair your double-glazed windows. They can usually accomplish this in a short time. This is a cheaper alternative to buying and installing new double-glazed windows. It's also better for the environment! Broken Locks & Handles It could be a major issue if your window handle is damaged or broken, or if it is difficult to open. You won't be able to open your windows. It can also give burglars a chance to gain entry into your home. There are several solutions to address the issue, but the best way is to speak with an uPVC expert. Based on the severity of the issue they are able to usually fix it for you, or at a minimum, give you an alternative handle. There are a number of different kinds of window locks, however the most common is the Maco or Mila lock, which can be found on the majority of uPVC frames. These locks are secured with bayonet-style rods, which can easily jam. If this occurs, the handle's nase will remain in the popped out position and won't be able to return to the locked position wedged. This could be a annoying issue, but it is able to be fixed with a few simple steps. To fix the issue, you'll need to take off the handle. This can be done easily enough with the help of a screwdriver. After removing the handle you will be able see the screws that secure the lock to frame. Once the screws are removed, you can employ pliers or a wrench to try and grasp the bolts that hold the shoot. If this is unsuccessful then you might need to insert the tool through the gap between the frame and window (the gap may differ on the opposite side of the window) and then make a “u” shape using your hands to try and grab the shoot bolts. You can close your window by moving the handle to a closed position if you are capable of removing the bolts for shooting. The gearbox (espag or espagnolette.) is most likely damaged and won't open with the handle. It is possible to refit the gearbox without the shoot bolts so the window can be opened by the handle (and it will remain secure) However, you'll need to order the new handle and gearbox. Broken Hinges If your uPVC window hinges aren't working properly, you may need to replace or repair them. It could be because the window was opened too vigorously, or that the hinge snapped. They could also have a defect. It's simple to replace the hinge, so you don't have to purchase new windows. First, you'll need remove the hinges currently installed. This is done by removing the screws that hold the hinges to the frame. After the hinges are removed you can replace the boards using plywood that has been cut to the right size. Make sure that the plywood is thicker than the original board so that it can withstand the weight of the window both open and closed. Use wood filler to make sure the hole left behind by the hinge of the past will not leak or loosen. Once you've replaced hinges and filled the holes, you'll have to paint them. Make sure you apply a high-quality paint to ensure it will last as long as possible. After the paint has dried, you can re-attach the window and tighten any loose screws. Regular maintenance is also essential for window hinges. Cleaning the friction stay track and lubricating the hinge mechanisms will ensure they last longer. You can also use wood preservatives to shield them against the elements. This will help prevent rusting and ensure they look great for the longest time you can. Double-glazed windows are more energy efficient than single-glazed windows, and can save you money on heating. However, just like every other part of your home, windows will show wear and tear and may need repairing or replacing over time. Our Preston experts can help you if there are signs that your double-glazed windows are not functioning properly.