How to Repair Double Glazed Windows Double glazing is usually covered by a warranty of 10 or 20 year So, if your double-glazed windows are showing signs of aging, you may be eligible to have them fixed under warranty Double glazed window repair involves re-sealing your existing glass unit Misting is a clear indicator that the seal has failed and you need to repair it Damaged Glass Double pane windows depend on an airtight seal in order to work correctly Condensation between glass plates is a typical indication of a failing seal While condensation between glass isn't an issue that is serious and can be dealt with, it's typically a sign that the glazing unit needs to be replaced If you have an older double glazed window, it could require replacing both the frame and the glass If the frame is in good condition it is possible to save money by only replacing the glass Glass is brittle and it's not uncommon for double-pane windows to develop cracks over time If the cracks aren't caused by mechanical damage or a sudden impact on the window they can be fixed by using epoxy and elbow grease Begin by cleaning over the cracked area using a moist cotton rag Next, apply epoxy to the crack, according to the instructions of the manufacturer Let the epoxy completely dry before sanding and painting the repaired area It's also possible to keep cracks from spreading with a simple strip of masking tape One strip of tape placed on both sides of the cracked area should be enough to prevent superficial cracks, like stress cracks that result from low temperatures, from escalating If you're dealing with more severe cracks that are already forming in your glass, it might be better to contact a professional to ensure the safety of the repair Attempting to replace just a single pane of double-pane windows is a difficult and dangerous DIY task Double-paned windows are made as a complete unit and sealed with inert gas in the factory Therefore, it is impossible to remove only the glass without damaging the window If you plan to replace the glass in your double-paned windows, select a brand that has a long-lasting warranty You can also use newspaper to shield the window frame prior to when you remove the sash or replace any broken glass This will protect yourself from sharp shards that could fall in the process as well as to avoid any damage to the trim or molding of your home Condensation Build-Up The good fact is that condensation between window panes is normal This is due to an imbalance in temperatures and humidity of the air The water vapour that is present in air condenses when it comes in contact with cold, inaccessible surfaces such as windows This is usually an excellent thing, particularly in winter, as it can help prevent heat loss If your windows appear cloudy and have a film of water on them, it is time to call an experienced professional glazier This is an indication that the air gap seal between the two glass panes has started to degrade and is letting moisture into the window You can stop this from happening by making use of a dehumidifier, increasing ventilation or applying a de-icing agent There are also companies that can remove excess moisture from double-glazed windows by drilling into the frame and injecting desiccant This involves removing the sealed unit from the frame and then cleaning every glass pane before refilling the desiccant This is typically an expensive option, but it's important to check that the business you choose is insured and registered with FENSA Be aware that any modification to your double-glazed windows could cause the windows to be void of any warranties If you have windows that are covered by a warranty it is recommended to notify the company of any issues as they'll be accountable for the replacement of any defective units under warranty It is best to consult an expert prior to undertaking any DIY repairs This is especially relevant for older units since they are often more prone to failure If this happens, it's probably best to replace the whole glazing panel The windows will then be brand new that will last for many years Scratches It's not unusual for double glazed windows to be affected by scratches on their surfaces This could be due to environmental factors, or the way the window was installed A majority of scratches are minor and can be repaired with a few simple remedies If you can feel the scratches on your windows using your fingernail, or if they are deep, it's best to seek out an expert to repair the glass to its original condition Superficial scratches result from objects scraping against the glass the windows' surface like tree branches, pet claws and abrasive materials used when cleaning Most of the time, these scratches can be removed with some non-abrasive solutions such as iron oxide or cerium oxide polishes which you will have to continue using until the scratch is no longer visible Scratches can also happen when finishing sanding wood trim close to your windows They can also occur during construction These scratches are often difficult to fix However, a mix of baking soda and water can aid in smoothing the surface after buffing and eliminate any remaining scratch For more severe scratches you can apply a metal polish to smooth the area and remove the marks Add a small amount of the product to a microfibre or cotton cloth and gently rub the affected area in an upward motion Be cautious not to apply too much pressure as this could cause further damage to the glass After the glass has been smoothed, apply a moist cloth to remove any remaining polish If you have a particularly deep scratch that you just can't get rid of, think about purchasing a non-abrasive glass polish https//wwwrepairmywindowsanddoorscouk/chatham-windowrepair/ is available at any DIY store and should be applied according to the instructions on the product packaging You can also use nail polish to cover any scratches on the glass of your window Make sure that the nail polish is clean and only applied to the scuffed part of your window Haze The presence of haze in your double pane window is a sign that the airtight seal between the two glass panes has been damaged This should be repaired as soon as possible so that dirt and moisture are not able to accumulate between the glass panes This can cause damage to the glass and result in the glass's transparency being reduced There are several ways to fix the haze on double pane windows Use a defogging solution However, this is only an interim solution If you're looking for a long-lasting solution, get in touch with a professional glazing business that can repair the problem and replace the gaskets, if necessary A carbide-tipped tool can be used to drill small holes in the frame of the window to eliminate the haze You can then tuck a desiccate packet into these holes and wash the window with ruby alcohol The water will help to remove the haze off the window and wash it It's essential to keep your windows well maintained and regularly cleaned to avoid fogging This will keep your double panes clear and allow you to enjoy a beautiful view of your backyard or home In addition, ensuring that your home is well ventilated will also be beneficial This will ensure that any condensation is swiftly removed, instead of allowing it to settle and reseal the window In addition to regular maintenance and cleaning, you should also ensure that your windows are properly installed Installing your windows should only be done by a glazing company with experience This will help to ensure that the gaskets are installed properly and have a tight fit It's also recommended to get your windows fixed as soon as possible, before they begin to begin to show signs of wear and tear This will prevent expensive double pane window repairs In general, double-glazed windows that have insulation are built to last for about 20 years They are designed to withstand various weather conditions like extreme cold temperatures, heat and humidity, as well as repeated openings and closings But, it is important to remember that the standard time-to-life of double-glazed windows could be shortened due to poor installation or faulty materials