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How to Repair Double Glazing Windows
If you have double glazing, you may sometimes experience issues with gaskets, hinges, and handles. It is possible to solve these issues without replacing the entire window, saving money and time.
A common issue is the accumulation of condensation in the space between the two glass panes. This is a sign that the window needs to be repaired.
1. Broken Panes
A broken double pane window is a serious problem and can expose your home to the elements. It is not always necessary to have the entire sash of the window to be replaced to solve this issue. Double pane windows can be repaired with a special adhesive placed inside the cracks.
This short-term solution is used to prevent superficial fractures (such stress cracks) that may occur when temperature changes cause the glass to shrink and expand. If your glass has been damaged it may be necessary to remove and replace the entire window.
Sometimes, the seals between two panes of glass can become damaged or worn out causing condensation and misting of the windows. These problems are typically caused by moisture trapped between the glass panes, or it is absorbed into the wall through the window frame. Whatever the cause, moisture is bad news for windows with double glazing because it can cause mold and water damage and can be expensive to take care of.
You can try to control the issue by cleaning the windows of your double-glazed windows with cold, cool water. This will temporarily resolve the issue, particularly in the case of humid and warm outside. You can also employ a dehumidifier to cool the room by using double-glazed windows. This is particularly useful in summer.
If the issue continues the double glazed specialist can come to your home and clear the space between your glass panes. They can also employ tools to create a line of score around the perimeter of your windows where you can cut the glass using a glass cutter (inexpensive cutters are available in hardware stores). After this, remove all glazing points from the window's opening. This is best done while the sash is still in place, although it can be easier to work on a flat surface like a table.
2. Seals
The window seal is an integral component of double glazing. It plays a vital function in keeping your home efficient as well as draught-free and safe. The seal spans the inner frame's uPVC frame and holds an air-tight seal over the gas-filled space between the two panes of glass that make up the window. The seals are a vital component of double glazing's insulating properties. If they fail or experience problems it will decrease the effectiveness.
If your seals aren't doing their job, you'll see condensation between the panes. This isn't just ugly however, it could also lead to dampness and mould in the home. Damp and mould can cause damage to walls, floorboards and furniture and could be a serious health risk for those suffering from respiratory ailments such as asthma.
The majority of double glazing manufacturers offer a service that allows you to repair your windows without the need to replace the entire unit. This is not just cheaper but also faster and more sustainable. In the meantime, there are some DIY alternatives, such as caulking to prevent moisture and leaks or lengths of self-adhesive seals which can be applied directly to the window frame's junction frame and sash.
In most cases, the simplest and most effective way to deal with damaged window seals is to call in an expert. They can replace the window seal, and also prevent moisture and air from entering your home, which could cause expensive damage.
It's worth checking the paperwork of your double glazing to see whether it has an assurance period of 10 to 20 years is common - this can save you money in the event that the windows need to be replaced due to broken seals. Some installers will drill holes in the misty double glazing to eliminate the moisture and then create a new seal. This will prevent it from misting in the near future. However, this can be an interim fix and a plug needs to be put into the hole in order to keep it shut.
3. Locking Mechanisms
Double-glazed windows have air gaps between the glass panes to provide insulation against the changing temperature outside and to keep warm in the home. This type of window can also be called an Insulated Unit (IGU). These windows can save you money on heating costs by reducing the energy consumption. They are not impervious to damage, and they may need repair to the double glazing.
Many of these issues are fixable, and they're much cheaper than having to replace the entire window. It is recommended to contact a specialist firm that provides double glazing repair services, as this will ensure that the job is completed correctly and with minimal hassle. They will usually provide a free estimate to let you assess the cost and the quality of their work.
It is important to check the warranty included with your double-glazed windows as it will typically cover the cost of repairs. This is a standard feature of double glazing and usually lasts from 10 to 20 years, though some companies offer lifetime guarantees.
The seal could have blown if you cannot open your double-glazed window, or if there appears to be mist between the panes. This can occur when the frame of the window shifts slightly, or if the packaging that holds the glass sheets in place becomes damaged over time.
There are ways that you can repair a double glazed window yourself, however it is generally better to hire a specialist firm. If you try to do it yourself, you must follow the manufacturer's guidelines and use the right tools to complete the task. You also risk voiding any warranty if trying to take off the glass by yourself. You might end having to pay more than if the company you purchased the windows from had contact you.
Once the broken pane is removed you can replace it using plastic spacers to make sure that it fits the frame. You can also add any uPVC beading. Then you can put in an additional gasket and seal the window.
4. Weatherproofing
There are ways to fix double glazing windows that are hard to open or have been sagging. For example, you can try oiling the hinges, mechanisms or handles to see if it can help. You can also replace gaskets to boost your windows' performance and stop them from opening up to cold air and draughts. They can be purchased from a hardware store or online and they are easy to install. If you don't have the time to do this yourself, you could always ask a professional to do it for you.
If you notice condensation between your window panes, it is also something that can be fixed easily. This is caused by an unsound window seal that allows moisture to get in between the glass panes. This can cause mist to develop on the glass, which is both unattractive and ineffective.

One solution is to replace the gaskets, which can be accomplished at home by anyone with basic DIY knowledge. It is essential to make sure that you apply a gasket sealer which will provide a good seal and will help lower energy costs. Alternately, you can use a calk for filling any cracks in your windows and give them an extra boost in their weatherproofing.
The seals could also fail on double-glazed windows. This can happen due to paint being applied to the windows, home renovations, or just general wear and wear and tear. If you discover that your double-glazed windows have started to fog, it is important to have them repaired as soon as possible.
Double glazed windows can be an excellent addition to your home, giving you with windows that are energy efficient and safe that will keep the weather out and the heat in. There are occasions when replacing double glazed window is the best choice. This could be the case with broken panes, extensive rot or frames that are no longer suitable for double glazing units.