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Double Glazed Window Repairs Double glazing can be a great investment, but frustrating when it fails to work. Most issues can be addressed and you don't need to replace your windows or doors. Double-glazed windows consist of two glass panes separated by a thin gap. The gap is filled with an insulating gas like argon. This improves the 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 break. If a pane breaks in your double glazing, it's crucial to fix it as soon as possible to avoid moisture and energy losses. You can opt for a temporary repair or a more extensive epoxy fix based on the severity of your crack. A temporary repair will help to prevent further cracking, and keep out cold air and rain. A more extensive repair will strengthen the crack and create the seal with a stronger one. To replace a broken double-pane windows, first remove the frame from the sash and place it on the table. Apply a duct tap grid over the pane to stop glass fragments from falling off during removal. Once the tape is secured, pull the old double pane glass out of the frame. Then, clean the rabbet and grooves using a wire brush, vacuum or wipe them with a damp cloth. If needed, remove the wood molding and scrape away all metal or putty prior to installing the new pane. Finally, apply a silicone caulk to the grooves and rabbet to ensure a secure fit. If you're looking to fix a cracked window yourself, start by sanding the rabbet until it's smooth and clear of paint or gunk. You could also use a heat gun to soften any putty or glazing points. After the rabbet has been cleaned, a putty knife can be employed to press a rope of putty into position. Make sure that the putty has an even thickness, and that it presses evenly against the glass frame. If you prefer a long-term fix the repair of an epoxy is a better choice over a replacement. This option is more expensive and will require a longer wait time however, it is also more attractive. It will also last longer than the temporary fix. Condensation Condensation can be a common problem with double-glazed windows, however that doesn't mean they're not functioning properly. It's a good thing your windows show condensation. This indicates that double glazing is working just as it should, keeping out the cold while allowing the heat. It's actually water vapour from your home which condenses on the surface of your glass when you notice condensation. It's a normal phenomenon and it's not going to cause any harm to your windows unless you allow it remain on the glass for too long. The cause of internal condensation is usually too much humidity or low temperatures in the room. This creates cold surfaces, such as windows and doors, to attract moisture that is high in dewpoint (the temperature at which water turns into a liquid). The humidity is also a common occurrence in kitchens and bathrooms because of steam from kettles or showers and hot pans and pots that are used for cooking. To avoid condensation, try not to hang wet clothing near your windows and always make sure that your uPVC frames have plenty of air circulation to avoid the build-up of moisture. Also, ensure that your double glazed windows are properly insulated and fitted with the correct gap (6mm is best) to maximize energy efficiency. You could also consider installing one-way air vents on your windows to increase insulation. If you're still seeing condensation, however, then there's likely an issue with gaskets or seals and this is a job for a professional. Draughts A double-glazed window that is draughty is an indication that the seal between the glass panes is broken and needs to be replaced. This will affect the insulation of your home and result in an increase in energy costs, so it's important to act fast when you spot this problem. A window repair service can replace the sealed unit for you, while restoring the effectiveness of your windows. They can also upgrade your frames to include new energy-saving features, such as gas-filled argon glass units that have thermal spacer bars. This will cut down on the loss of heat and reduce your heating costs. It is also worth checking the locking mechanisms on your double-glazed windows. Older uPVC window locks are notorious for becoming stiff after a while, but it's easy to fix this issue by regular lubrication using a specialized uPVC cleaning product. Having a professional double glazing business to complete the repair will ensure that the repair is done correctly. They will have the tools needed to ensure that your window is watertight and completely resealed. They'll also be able to fix any other damages to your frame so you can enjoy your beautiful new double-glazed window with confidence. Double glazed windows are long-lasting and hard-wearing, but they may experience issues due to wear and tear or weather. Contact your local double-glazing repair company whenever you spot any of these issues. You'll be grateful you did – a well-repaired double glazing installation will give your home that tangible feeling of quality, and will also save you money on your energy bills! Smudging Double-glazed windows comprise two separate panes with an air or spacer dense gas between them to create an effective seal that stops heat from passing through the frame. They're a great option for saving energy and reducing the carbon footprint. However, double-glazed windows can experience a variety of issues that may affect its performance and durability. These include condensation, fog and difficulty closing or open. If you're having difficulty opening your double-glazed windows it could be due to the weather. It could also be a issue with the hinges or handles. You can ease the problem by lubricating and wiping down the windows with cold water. Contact the company who sold you the windows as soon as you can to fix them. If your windows or doors have become sagging or dropped over time, this is another common problem that can be easily fixed by a trained professional. It is also worth checking the warranty to see what repairs are covered under this. Fogged or foggy glass could be caused by moisture between the panes. It's usually the result of seals that are not working or a double-glazing system that needs replacing. This is a straightforward fix that can be done without having to replace the entire window. To address this issue the technician will make small holes to let out any moisture that is trapped between the glass and the rest the window. After the moisture has gone then a new anti-fog coating is applied and the window will be sealed. Sometimes, the window may require removal, but in most instances, it is done from within the home. Mist Mist can be a major issue with older double glazing, specifically when it is present on the inside and outside of the windows. It is caused by an issue with the seal that is designed to hold air and moisture between the two panes. The seal is made during the manufacturing of double-glazed units by sealing both panes using an airtight polysulphide seal or butyl seal around the edges and a spacer bar. This is designed to provide insulation and keep the window from leaks. If you have misted double-glazed windows, it may be difficult to take off and clean, since you will need to break the hardened seal to clean. The problem with mists is that they allow moisture to penetrate, which leads to condensation between the glass panes. The reason for this is that there is a significant difference in temperature between the internal and exterior glass's surfaces. The moisture gets trapped in the gaps, giving the appearance of milky. upvc repairs can be very unsightly and is difficult to eliminate. There are many companies that claim to be able to repair your double glazed windows that are misting by drilling holes into the unit and injecting chemicals into the holes which then absorbs the moisture inside. It's not an end-to-end solution and it's much easier to replace your entire double-glazed unit. The best method to avoid misty double glazing is by keeping a good level of ventilation and cleaning your windows regularly. Utilize extractor fans to lessen the amount of moisture that accumulates in kitchens and bathrooms. Clean windows with a wet cloth to prevent this. If you're unable to completely avoid the issue, we recommend replacing the double-glazed units you have with A-rated ones to boost energy efficiency.