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Don't Make This Mistake With Your Repair Double Glazing Windows
How to Repair Double Glazing Windows

If you have double glazing, you may sometimes experience issues with handles, hinges and gaskets. It is often possible to solve these issues without having to replace the entire window, thereby saving time and money.

Condensation can build up in the space between the two panes. This usually indicates that the window has become defective and requires attention.

1. Broken Panes

A damaged double pane of glass can expose your home to the elements. But, it's not always necessary to replace the entire window sash to fix this problem. In fact, double pane windows are usually repairable with the help of a special adhesive that is placed inside the cracks to prevent the cracks from getting worse.

This short-term option is used to avoid superficial fractures (such stress cracks) that may occur when temperature changes cause the glass to shrink and expand. If your glass has cracked, it may be necessary to take the damaged glass off and replace it.

Sometimes, the seals between two panes of glass can be damaged or worn out causing condensation and misting on the windows. Most often, these issues are caused by moisture that gets trapped between the two glass panes or leaks through the window frame and into the wall. Moisture is not good for double-glazed windows regardless of the source. It can cause water damage and mold which is expensive to fix.

You can try to resolve the issue by cleaning your double-glazed windows with cold, cool water. This will temporarily resolve the problem, particularly when it is hot and humid outside. You can also consider using a dehumidifier in the room in which your double-glazed windows are, which can be particularly beneficial during summer.

If the problem persists an expert in double glazing will visit your home and clean the space between the panes of your glass. A tool can be used to draw a score line around the outside of the windows, where you can cut the glass with a glass cutter. After that, you should remove all the glazing points from your window opening. It is best to do this while the sash is in place. However it is simpler to work on flat surfaces like a table.

2. Seals

The window seal is a crucial component in double glazing and plays a vital part in keeping your home energy-efficient, draught-free, and safe. The seal is located on the inner perimeter of uPVC frames and forms an airtight seal within the space between the two glass panes. The seals form an essential element of double glazing's insulating properties. If they fail or experience problems they will reduce the insulation.

If your seals aren't doing their job, you will see condensation between the panes. This isn't just ugly but can also lead to dampness and mould in the home. It can damage walls, furniture, floorboards and cause serious health issues for people suffering from respiratory issues such as asthma.

The good news is that most double glazing manufacturers offer the option of repairing windows without replacing the entire unit. This isn't just cheaper however, it can also be a quicker and more environmentally friendly option. In the meantime, there are some DIY alternatives, such as using caulking to tackle moisture and leaks or lengths of self-adhesive seals that can be affixed directly to the junction between the window sash and frame.

Contacting a professional is the most convenient and efficient solution to a damaged window seal. They'll be able to repair the window seal, preventing the entry of air and moisture that could cause costly damage, and also help your home remain energy efficient.

Make sure you know the warranty duration of your double glazing. It is usually between 10 to 20 years. This can save you money in the event that seals have failed and the windows must be replaced. Some installers drill holes into the misted double glazing in order to remove the moisture and make a new seal. This will prevent it from misting in the near future. This is only temporary, and a plug has to be put in to keep the hole closed.

3. Locking Mechanisms

Double-glazed windows utilize air gaps between the glass panes to provide insulation against changing temperatures outside and also to keep warm in the home. This type of window can also be called an insulation unit (IGU). These windows can save you money on heating bills by reducing energy use. They are not indestructible, and they may need repair to the double glazing.

Many of these issues are fixable, and they're much cheaper than replacing the entire window. It is recommended to contact an expert company that offers repair services for double glazing, as this will ensure that the work is completed efficiently and with minimum hassle. Most of these companies will offer an estimate for free to allow you to compare prices and the quality of their work.

It is essential to verify the warranty included with your double-glazed window as it will typically pay for repairs. This is a standard feature of double glazing installations and usually lasts from 10 to 20 years, however some companies offer lifetime guarantees.

The seal may have blown if you cannot open your double-glazed window, or if you notice there appears to be a cloud of mist between the panes. This could happen if the frame of your window moves slightly or if the packaging that holds the glass sheets deteriorates over time.


There are ways that you can fix a double glazed window by yourself, but it's usually much more efficient to work with a specialist firm. If you decide to attempt it yourself, then always follow the manufacturer's instructions and use specific tools for the job. It is also worth bearing in your mind that if you try to remove the glass by yourself, you'll lose any guarantee you might have and you could end up paying a higher cost than if simply made contact with the company from whom you bought the windows.

After removing the broken glass and replacing it with plastic spacers. This will ensure that the replacement fits the frame. You can also add any uPVC beading needed. You can then fit the gasket with a new seal and secure the window.

4. Weatherproofing

There are solutions to fix double glazing windows that are difficult to open or have been sagging. For instance, you could try oiling the hinges, mechanisms or handles to see if this helps. Another thing you can try is to replace the gaskets. This will help to enhance the performance of your windows, and also stop them letting in draughts and cold air. They can be purchased at a hardware store or on the internet and they are easy to install. You can consult an expert if you don't want to tackle it yourself.

If you have condensation between your window panes, this is also a situation that can be easily fixed. advice here is usually caused by a broken seal that allows moisture to get in the gap between the glass panes. This can cause mist to develop on the glass, which is both ugly and ineffective.

One way of addressing this is to replace the gaskets which can be done at home by anyone with a basic DIY knowledge. It is crucial to ensure that you use a gasket sealer, which will provide a good seal and reduce your energy bills. Alternately, you can use a calk to fill any cracks and give your windows an extra boost in their weatherproofing.

The seals can also fail on double-glazed windows. This is often caused by painting the windows near them or renovation work on the property, or general wear and tears. If you discover that your double glazed windows have started to fog it is crucial to have them repaired as soon as possible.

Double-glazed windows can be a great addition to your home, giving you with energy efficient and secure windows that keep the elements out and the heat in. There are occasions when replacing double-glazed windows is the best choice. This could be the case with broken panes, extensive decay and frames that are no longer suitable for double glazing units.

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