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How to Repair a Double Glazed Window Double glazing is a cost effective method to insulate your home and improve its energy efficiency. But it can be prone to faults like condensation and drafts. Repairs are typically more cost-effective than replacement. Let's take a look at some of the most commonly used solutions for repairs to double-glazed windows: Broken Panes The first step is to remove the broken pane from the frame. Wear a pair of thick gloves and keep an empty cardboard box nearby to collect any fragments of glass that fall while you work. Use a utility knife to cut the glazing around the windowpane that has been damaged and ensure that you wear a mask and eye protection due to the possibility of lead in the frame. Use pliers to remove any clips or nails that are securing the windowpane. Scrape off any old putty or metal glazing points after the glass is removed. If necessary, a heat gun can be used to soften the putty. Once the old putty has been removed Re-grout the grooves and apply new silicone caulk with a silicone caulking gun. It's a good idea to check the fit of the new window within its frame prior to applying final caulking. Check that the grooves in the frame are free of paint, rust, or gunk, and aren't too narrow to fit the window. Next you should replace the sash with an appropriate wood molding that matches the windowframe. If the windowframe is in poor condition it could be easier and more cost effective to replace the entire window unit rather than a single pane. In the past windows with double panes were made of two pieces of glass that were separated by the help of a spacer. They were then filled with either air or an insulation gas. In recent years, manufacturers switched to insulated-glass units (IGs) which are more energy efficient and resistant to seal failure. In a double-pane glass with a failed IG the moisture from the air outside is absorbed into the gap and then condenses on the inside of the glass. This process eventually destroys the insulating properties that are present in the IG and leaves a hazy substance on the glass. To fix a damaged IG glass, an expert in glass repair can replace the entire unit, or can replace just the broken surface of the glass. It can be a lengthy and costly process, however it's the only way to repair a leaky seal that lets water into the home. Purchase high-quality windows from reliable manufacturer and having them installed by a skilled technician will help avoid future problems with the seals. Misty Panes The window's frame can hold three or two panes separated by air-filled spaces. The air, usually filled with argon gas for more energy efficiency, aids to keep warm air in and cold air out. Unfortunately, windows can break down and you may be able to see a smokey, hazy fog between the glass panes. You might think it's time to replace the entire window but it's not as simple as removing the damaged pane and replacing it. In most instances, a stained window indicates an issue with the seal between the two panes that comprise the glass. The condensation or mist suggests that moisture has entered, which damages the insulation of the double glazing. This is why it's essential to be attentive to the maintenance of your windows and keep them clean. If you notice condensation between the glass panes it means that there is too much moisture in your home. It is recommended to dehumidify the room and take other steps to improve the ventilation in rooms where this occurs frequently. If the condensation is visible only on the one side of your window or between the panes, you'll need to have the seal replaced. There is no such thing as resealing a double-glazed window to restore its original energy-efficiency. If upvc window repair is damaged, the gap allows cold air in your home and warm air out. This can reduce the insulation power of your home and will cost you more to heat. Certain companies offer to drill holes into the panes of your window's exterior to take out the condensation. But it's only a temporary solution and will unlikely to last for more than six months. You should not attempt to do this on your own because it can be extremely dangerous if you don't have the proper tools or knowledge. A double-glazing expert will use specialist equipment to safely eliminate the condensation and install air vents that should aid in preventing any future misting. Frame Damage Double glazing isn't impervious to damage and even with the best of care, defects can occur. Certain issues are minor and can easily be fixed. Other issues are more serious and require a complete replacement. The owner of the house should take this decision by taking into account the advantages of double glazing as well as the value it can bring to the property. If you have trouble opening and closing your windows, it could be due to misting or a problem with the frame. If this is the case, you should get your windows repaired as soon as possible to prevent any further damage to your double glazing and to stop water from getting into the gap between the insulated and uninsulated. The frames of double-glazed windows are designed to hold the glass panes in place and prevent them from moving, however as time passes, the particular packaging that assists in this will wear away. This could cause the glass sheets to move, which could rupture the seal and cause misting. The space between the panes can also mist up, indicating that there is a breach in the seal. The most frequent issue is that windows have sagged with time and are difficult to open or close. This can usually be fixed by changing the hinges or mechanisms. Be aware that a lot of double-glazed windows come with an insurance policy. In this instance you must call the company from where you bought your double glazing to find out what you can do. It is possible to repair your own double glazed windows, however it is usually better to talk to a professional and make use of their expertise and experience. Professionals will be able to diagnose the problem and provide the proper double glazing repair quickly and efficiently. You can also avoid voiding the warranty by not trying to fix your windows without the proper expertise. Weather Damage While you might think of double pane windows as immune to weather damage but if you live in an area susceptible to hail storms, ice storms, high winds and torrential rains windows and seals are prone to some serious damage. It is important to check your windows on a regular basis and repair any minor damage or scratches as soon as they are discovered. Blown windows can be one of the most serious issues you could face when you have double glazing. When a gap appears between the two panes of glass air and moisture can get into your home. This is usually a sign of deterioration in the seals or an issue with the insulating material between the panes. Another problem that many homeowners face with double-glazed windows is condensation that forms between the panes. This is caused by the warm air in your home being warmer than the cooler air outside. The difference in temperature causes the warmer air to expand, which could cause the window's seals to crack or weaken over time. Foggy windows are also a common problem with double-glazed windows. This is a common problem that can be solved without replacing the IGU. This is typically a sign that the seals between your window's panes must be replaced. To accomplish this, you'll have to drill into the panes of your window. The hole should be large enough for you to insert an extended pipe cleaner or other long object with cloth at the end. The cloth end is used to wash your windows clean and eliminate any condensate that is left. This will help to form a an airtight seal and will prevent any future fogging of your double glazed windows. It's important to note that this is temporary solution for your windows that are foggy. When it rains or there's a sudden increase in humidity, the condensation will return. If you're seeking a permanent solution, you will have to replace your old IGU.