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10 Unexpected Double Glazed Windows Repairs Tips
Double Glazed Windows Repairs

There are a variety of reasons your double glazed windows might require repair, from condensation between panes to dropping or sagging frames. The majority of these issues are fixable.

If your door or window is difficult to open, consider oiling the hinges, the mechanism and handles. This is usually a cheap solution that is quick and easy to fix.

Broken Panes

When a window pane is damaged and shattered, it loses its insulation and can cause a draft. If the muntins that separate the glass panes are also broken, water can leak between them causing condensation or mildew, or mould. This can make your home less energy-efficient. It is recommended to have a professional repair the damaged window to ensure the most effective seal and energy efficiency.

First, you'll need to get rid of any broken glass. Start by placing a low-cost glass cutter in an hardware store underneath the broken pane. Before you start, grease the cutter of this tool using a light oil. This will prevent the glass from shattering too easily. You can then utilize the tool's ball-shaped end to break up the glass fragments and they should fall away quickly.

Scrape any old glazing compound off the frame's recess after the glass has been removed. This will reveal the glazier's points and the metal clips that hold the pane in the frame. Replace them if there's any corrosion. If the window is constructed of wood the glazier points may be reused if they're still in good shape.

The next step is to prepare the surface of the remaining frame for re-glazing. Utilizing a caulking gun apply a continuous ribbon of compound around the inner edge of the recess. Use a high-quality putty, such as Glazier's compound in a cartridge. Allow it to dry before inserting the glass. Install the metal clips if they are attached to the frame. Finally, reinstall the divider muntins.

Condensation

Condensation is one of the most common issues that double-glazed windows can experience particularly in wintertime. It's usually caused by excessive moisture levels in your home. Warm air collides with cold glass, which condenses into droplets of water. They then settle in the corners or frames of the window. This can be prevented by opening your windows more often, improving ventilation through extractor fans, and using dehumidifiers to lower the moisture levels. If condensation remains a problem, it's important to call in an expert to determine the root of the issue and fix or replace your windows if necessary.

It's also important to remember that condensation on windows with double glazing can be an indication of a failing seal. The seals that are applied at the factory could wear away over time and allow cool air to pass between the panes. This can lead to fogging of the window, and eventually mold growth if not dealt with quickly enough.

For a quick fix to condensation, you could try using a hairdryer to dry up the excess moisture. However, this is just a short-term solution and should be only used as an option last option. If the condensation is allowed to sit for too long, you could be looking at mould or dampness within your home, which must be addressed by a professional.

Professionals can seal your double-glazed window for a better, more durable solution. They'll remove the affected piece of glass, then clean the gap and pipe in hot air to evaporate any moisture that remains. In the process, they'll examine for any the presence of mildew, mold or damage growth and apply a draught-proofing process to ensure your windows are fully functional and energy efficient once again.

Draughts

As time goes by the rubber seals around the edges of your insulated glass can be damaged and cause a draught to form in the space between the two panes. This is often a simple problem that can be fixed by re-installing the gaskets and this will result in a solid and airtight seal once again. This will keep the warm air in your home, and the colder air out, saving you money on your energy bills.

Misted double glazing indicates that the seals in your sealed unit (sometimes called a DGU) have been blown. The unit consists of 2 panes of glass that are separated by the spacer bar to create an insulating space. It is then filled with gas, for example argon for example, to make the window airtight. If the seal is blown the water vapour will get into your home through the gap. This will create condensation between the glass panes, which can't be sucked out.

Fortunately, this is an easy problem to fix and the windows can be replaced very quickly by experts who have all the right tools and know how to do it properly. The specialist will use a tool designed to push the new seals in place and this is normally quicker than doing it manually. These tools have an edge that can be used to push seals into corners.

In certain situations an expert may be able to 'reseal your windows' by drilling a small hole in the window and then putting in an adsorbent material or putty. This can be an economical alternative to replacements, and will give you an effective protection against draughts for your double glazing.

Faulty Hinges

Misted double glazing is a frequent problem that many people experience. It could be caused by cracked or broken glass or frame, or even a broken seal. It is usually possible to correct this issue. Normally, this involves creating an entirely new seal between the two panes of glass. The new seal will prevent leaks, condensation and draughts from happening.

If you discover any issues, you should contact the company that sold you your windows. You should inform the company in writing and ask for confirmation that they have received your notice. Having everything in written form will make it easier to resolve any disputes arise, because it is easier to prove that you did indeed complain.

In some cases the window repair expert will cut the hole in your windows to draw moisture out and create a new seal. This is a temporary fix and will not stop the return of moisture. It may also be possible to replace the glass, which would make it watertight.

It is important to keep in mind that you should only try DIY fixes only if you have the experience and knowledge necessary to do so. Using super glue or another kind of DIY solution can cause more harm in the long term. If you are unsure of what to do, it is always recommended to seek professional advice. By entering your postcode into the search box of Checkatrade will allow you to find a local tradesperson who offers double repair of your glazing. All of our traders are verified and checked for accuracy, so you can trust that they will provide you with a top quality service.

Broken Seals

Window seals, also known as insulation gas fills, keep double glazed windows in place. They are susceptible to damage due to many elements, including weather conditions, age, and power washing. It is important to be aware of the signs and the best way to repair them.


If a window seal is damaged, humid air can seep between the two panes glass, causing fog. This is a frequent issue that can cause the window appear distorted. Once the seal fails, argon and other inert gases are removed from the window, further reducing the glass's insulating qualities.

A professional Glazier can replace a damaged window seal with a new one. This can be costly and may not completely solve the fog issue. Certain companies offer defogging services, which involve placing a special vacuum pump in the window frame to eliminate the moisture and leave the glass clear. This method isn't foolproof, and it doesn't replace inert gasses, meaning that fog may be re-created.

If the IGU (insulated unit) is beyond repair, a glazier could replace it. This is usually the most cost-effective solution and can be a good choice if you're seeking an option that lasts for a long time. However, it's best to select a company with a guarantee for replacement windows to ensure that any issues are covered. You can be certain that your investment will produce the most effective results. You can also get rid of the issue by choosing a high-quality product and following the maintenance instructions provided by the manufacturer. This will extend the life of the window and reduce the amount of repairs.

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