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The Main Issue With Repairing Double Glazing, And How You Can Fix It
How to Go About Repairing Double Glazing Windows

Many double glazing windows come with a warranty that lasts up to 20 years. If you notice problems you're looking to fix, contact the company who sold you the windows to learn what their policy on repairs.

Repairing your double glazing could be a simple process in some cases. Here are the most common issues and the best way to repair them.

Broken Glass

Double pane windows rely on a seal that is air tight to keep the inner and outer glass together. If one of the glass panes cracks it could be extremely difficult to remove the broken piece without damaging the window frame. This kind of damage may cause a loss of energy efficiency, so it is important to repair the crack as quickly and in a timely manner.


It is a good thing that repairing broken glass in double-glazing windows is a straightforward task that can be completed at home with the right tools and materials. To begin, remove any broken pieces that are loose from the glass. Wear protective gloves as broken glass may contain hazardous shards. Once the glass that has broken is removed, wipe the frame of the frame using a rag that has been dampened with acetone or rubbing alcohol to remove any traces left behind by the glue used to fix the broken glass to the window frame.

Next, remove any remaining glazing points from the frame using a putty knife. After all glazing points have been removed, clean the backside of the window frame and the l-shaped space where the window pane is joined to the frame to ensure that they are free of any hardened glass compound. Then, clean the old glass with a wirebrush and the new frame prior to installing the new pane. After the frame has been cleaned then apply a small amount of glazier's putty on the glass's edge to ensure it is secured against the frame.

Some types of windows use vinyl, aluminum or wood stops to hold the glass in place instead of glazier's points. If your double-glazed windows are of this type, use a utility blade to cut through the tape from both sides to remove the stop without damaging it. After the stop has been removed then you can apply a strong-hold tape strip to the exterior of the new window to stop further damage from occurring.

Leaking Seals

The seals around the frame are likely to be defective if double-glazed windows leak. This is a serious issue since it indicates that all the thermally insulating gas is leaking out and the window is not performing as efficiently. This could cause you to spend more on heating because your windows are not as efficient as they used to be.

There are a few warning signs that you can look out for to help keep a drafty window from forming. If you notice a breeze coming through your windows even though they are closed, the seal may have been damaged and require replacing. There may be condensation on the glass, which is an indication that the seals have failed.

The simplest way to eliminate a draught is simply to replace the seals around the frames. But it is a challenging job that requires special tools to avoid damaging the glass. It is recommended to get in touch with a professional glazing firm to complete the work in order to be able to use deglazing tools to take off the old seals without damaging the glass.

In some cases it is possible to repair leaky double-glazed windows using silicone putty to fill the gaps. This isn't the best option as it doesn't provide a high resistance to heat and is susceptible to leaks in the future. But, it's worth trying if you have no other option available.

Rubber seals around double-glazed windows can break in time. This could be due to age, environmental conditions, or the way the windows are constructed. It is essential to replace the seals as quickly as you can in order to ensure your double-glazed windows remain as effective as when they first came out.

Double glazing that isn't functioning properly is typically reflected by a draughty double glazed window. A draft is likely to be felt around the edges of the frame, where it joins with the brickwork or the surrounding wall. The seal has broken and air is able to get in. This can result in damp patches appearing on the walls.

Condensation

Double glazing windows are an excellent choice for homeowners seeking to reduce their energy bills and increase the insulation of their homes. But despite being durable and long-lasting, they require regular maintenance from time to the point.

A common issue that windows with double glazing experience is condensation. Condensation is often the first sign that a window seal has failed. If condensation is not addressed immediately, it can lead mould growth and even to wood rot.

Condensation is most commonly seen in the morning when air temperatures rise and humidity levels rise, causing water vapour to form. This includes your windows. It isn't usually anything to worry about, but it's a good idea to clean any visible condensation as soon as you can in order to prevent it from forming.

However, it's not always the indication of a leaky seal and there are other reasons your double glazed windows may be leaking. The seals made of rubber on double-glazed windows may get worn out over time. They may eventually break, which will then reduce the air gap between your glass panes. This is why it's important to get your double glazed windows fixed as soon as possible in the event that you observe any indications of condensation or misting.

To fix a double-glazed window with condensation tradesman will take off the affected pane, before putting it back in place and running hot air through the gap to remove any moisture that might be present. They will then apply a new seal to ensure that the gap is airtight and working as it should be.

Repairing your double-glazed windows can be a cheaper option than buying and installing brand new windows. It's important to find a reputable tradesperson who is able to complete the task. Checkatrade helps by supplying local, vetted and checked tradesmen who are skilled in performing repairs to double glazing . You just need to type in your postcode and select the type of tradesman you are looking for to receive a list.

Frame Damage

It's possible that one of the seals in your frame has broken If you hear crackling sounds or other odd sounds emanating from your double-glazed windows. The seals keep water and cold out of the insulating gap between the glass panes. It's essential that you get these replaced as soon as you can to prevent moisture from entering your home.

Fractures that crack could result from wear and tear or due to impact damage such as when pets or children play. This can often be fixed with a simple repair like using silicone or sanding the area. However, more extensive damage could require the installation of new window frames which isn't something you'd want to do on yourself unless you are skilled tradesman.

A common double-glazing problem is that it is difficult to open or close. This could be due to a build-up of dust and dirt within the track or a structural issue like warping. This can be easily fixed with a little elbow grease and a gentle nudge, dependent on the severity.

The moisture that gets into your home through damaged double-glazed windows can cause dampness, mould and condensation. The warm air inside your home is more likely to retain moisture than the cooler air outside, which is why it will be able to settle on surfaces like double glazing or single-glazed windows that aren't properly sealed.

The good thing is that you are able to solve these issues, and it will often be less expensive than replacing your entire window. Faults with double glazing are usually covered by a warranty that typically lasts for a period of 10 or 20 years, although certain companies offer lifetime warranties - always check the coverage of your window prior to you start working. Be sure to contact your company in writing, by mail or email, rather than text messages - this will make it easier if you have to follow up with them about any issues that arise.

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