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Double Glazed Window Repairs Double glazing is a great investment for your home, but it can be frustrating when it doesn't work correctly. Most issues can be addressed and you don't need to replace windows or doors. Double-glazed windows are made up of two glass panes that are separated by a very thin gap. The gap is filled with an insulating gas, like the gas argon. This helps increase the thermal efficiency of windows. Broken panes Double-paned windows are harder to break than single panes of glass, however they are still susceptible to shattering or crack. If a pane breaks in your double glazing, it's crucial to repair it immediately to prevent moisture and energy losses. You can choose either a temporary repair or more extensive epoxy fix based on the extent of your crack. A temporary repair will aid in preventing further cracks, and keep out cold air and rain. A more extensive repair will strengthen the crack and will provide a stronger seal. To replace a double-pane broken window, take the frame off and place it on an even surface. Then, apply a grid of duct tape to the pane to keep glass pieces from falling off when you remove it. Once the tape is in place remove the double pane glass from the frame. Then you can use a wirebrush to clean the grooves and rabbets. You can also vacuum them or wipe them clean with a damp cloth. Remove the wood moldings if necessary and scrape away all metal glazing points or putty before installing the new pane. Apply a silicone caulk over the rabbet and grooves in order to ensure an ideal fit. If you want to repair damaged windows yourself, begin by sanding the rabbet until it's smooth and clear of paint or gunk. You can also use a heat gun to soften any glazing points. Once the rabbet is cleaned and sanitized, a putty knife may be employed to press a rope of putty into place. Make sure the putty is uniform in thickness and is pressed against the glass and frame in a uniform way. If you want a long-term solution then you could opt for an epoxy repair instead of a replacement. This option requires more work and a longer time to wait, but it can be more attractive and will last longer than a temporary repair. Condensation Condensation is one of the most frequent double-glazed window issues, however it doesn't mean that your windows aren't working properly. The fact that your windows are showing condensation is a good indication that your double glazing is performing what it is supposed to keep the cold out and letting warmth in. When you see condensation forming on the outside of your window it is actually water vapor coming from the inside of your home that has cooled and condensed onto the surface of the glass. It's a natural phenomenon that won't harm your windows, except if you let it sit on the glass for long enough. The reason for internal condensation is usually excessive humidity or low temperatures in the room. This creates cold surfaces, such as windows and doors, to draw in moisture with a high in dewpoint (the temperature at which water turns into a liquid). It is also commonplace in bathrooms and kitchens due to steam from showers or kettles and hot pots and pans used in cooking. Avoid hanging wet clothes near windows and make sure your uPVC frames are well ventilated to prevent the buildup of moisture. To ensure maximum energy efficiency, you should ensure that your double-glazed windows are properly installed and insulated with the proper gap (6mm). It is also possible to add air vents that are one-way on your windows to increase insulation. If you still get condensation, it's likely the issue is with your seals or gaskets. This is a task that should be left to a professional. Draughts A draughty double-glazed window is an indication that the seal between your glass panes has broken and will require to be replaced. This will affect the insulation of your home and result in an increase in energy costs and therefore it is important to act quickly when you spot this issue. A window repair service can replace the sealed unit for you, restoring the efficiency of your windows. Repair My Windows And Doors can also upgrade existing frames with new energy-saving features, like argon-filled glass units and thermal spacer bars that will reduce heat loss and lower your heating costs. It's also worth checking the locking mechanisms of your double-glazed windows. Older uPVC window locks are known for becoming stiff with time however, it's simple to fix this issue by regular lubrication using a specialized uPVC cleaning product. A professional double glazing company will ensure that the repair is completed correctly. They will have the tools needed to ensure that your window is watertight, and completely sealed. They'll also be able fix any other damage to your frame, so you can enjoy your gorgeous new double-glazed window with confidence. Double-glazed windows are tough and long-lasting, however they may develop problems due to weather or wear and tear. If you notice any of the above problems, call your local double glazing repair service right away to fix them as soon as possible. You'll be grateful you did – a well-repaired double glazing installation will give your house that tangible sense of quality, and will also save you money on your energy bills! Smudging Double-glazed windows are comprised of two separate panes, with an air spacer or dense gas in between. This creates a strong seal that stops heat from escaping through the frame. They're a great option to reduce energy consumption and the carbon footprint. Double glazing may have many issues that could affect its performance and lifespan. These include condensation, fog and being difficult to close or open. The difficulty in opening your double-glazed windows could be caused by the weather or it could be due to a problem with the hinges or handles, or the mechanism. You can ease the problem by lubricating and wiping the windows with cold water. Contact the company who sold you the windows as soon as you can to get them fixed. This is a common issue which can be easily fixed. It is also worth checking the warranty to see what repairs are covered under this. Foggy or fogged glass is caused by moisture in the panes. It's typically a sign that the seals aren't functioning properly or your double-glazing unit needs to be replaced. It's a simple fix and you can often get it done without the need to replace the entire window, which can reduce the cost of replacement. To fix this problem the technician will make small holes to release any moisture that is trapped between the glass and the window. Once the moisture has been removed the new antifog coating is put on and the window is sealed. Sometimes, the window may need to be removed, but in most instances, it can be done from within the home. Mist Double glazing that is older may have a mist problem in particular when it happens both in and out of the window. This is due to a malfunction of the seal designed to prevent air and moisture between the two panes. During the manufacture of double-glazed units, this seal is created by sealing both panes with an airtight butyl or polysulphide seal around the edges of the glass and the spacer bar. This seal is designed to prevent the window from leaking, and also provide insulation. It isn't easy to clean double-glazed windows that have mist as you must break the seal to do so. The problem with mist is that it allows moisture to get in, which then causes condensation between the glass panes. The reason for this is that there is a big difference in temperature between the internal and exterior glass's surfaces. The moisture is then trapped in the gaps and causes an appearance of milky white. This can be extremely unsightly and difficult to remove. There are a number of companies that claim that they can fix your double-glazed windows that are misting by drilling holes into the unit and injecting chemicals into the holes, which absorbs the moisture within. It's not a permanent fix and it's easier to replace your entire double-glazed unit. The easiest way to avoid misty double glazing is by keeping a good level of ventilation and regularly cleaning your windows. Use extractor fans to reduce the buildup of moisture in bathrooms and kitchens. Clean windows with a wet cloth to prevent this. If you can't avoid the problem, we recommend replacing your double-glazed windows with A-rated units to improve energy efficiency.