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14 Common Misconceptions About Repairing Double Glazing
How to Go About Repairing Double Glazing Windows

Many double-glazed windows come with a guarantee that lasts up to 20 years. If you spot problems, you should check with the company you purchased them from to see what their policy is regarding repairs.

Repairing your double glazing can be a simple process in some cases. Here are a few of the most common problems that can be fixed.

Broken Glass

Double pane windows rely on an air-tight seal to keep the outer and inner glass in place. If one of the glass panes break it is difficult to remove the broken piece without damaging the frame of the window. This kind of damage can result in a decrease in energy efficiency. Therefore, it is crucial to fix it quickly and efficiently.


Repairing cracked glass in double-glazed windows is an easy task that can be completed at home with a handful of tools and materials. To begin, you must remove any broken pieces that are loose from the glass. Wear protective gloves as broken glass could contain dangerous fragments. After getting rid of the broken glass use a dampened rag and acetone or rubbing alcohol to clean the the frame. This will remove any adhesive residue.

Then, you can remove any remaining glazing points from the frame using a putty knife. After all the glazing points are removed then clean the backside of the window frame and the l-shaped space where the window pane is joined to the frame to ensure they are free of any hardened glass compound. Clean the old glass using a wirebrush and then clean the new frame before installing the new pane. Once the frame and glass are clean, a bit of glazier's putty can be applied to the edge of the new glass to hold it in position against the frame and close the gap between the frames.

Some windows utilize aluminum, wood, or vinyl stops to hold the glass instead of glaziers' points. If your double-glazed windows are this type, use a utility blade to cut through the tape on both sides to remove the stop without causing damage to it. After the stop is removed then you can apply a strong-hold strip to the surface of your new pane of window to avoid further damage.

Leaking Seals

If your double-glazed windows leak, the seals around the frame may have failed. This is a serious issue because it means that all the thermally insulating gas is leaking out and your window is losing efficiency. This can lead you to pay more for heating since windows aren't as efficient as they were previously.

Luckily, there are some warning signs to look out for to help keep a drafty window from developing. If you notice a slight breeze coming through your windows, even when they are closed, the seal might have broken and needs sealing. You might also notice condensation on the glass, which is another indication that the seals are failing.

The easiest way to eliminate a draught is to replace the seals around the frames. This is a complicated task that requires specialized tools in order to avoid damaging the window glass. It is best to consult an expert glass firm to perform this task, since they can use deglazing equipment that can remove the old seals and cause damage to the glass.

In certain cases, you might be able to repair leaky double-glazed windows using a silicone putty to fill the gaps. This isn't a great solution as it does not have a good heat resistance and it can leak again in the future. However, it's worth a try if you have no other options.

It is not uncommon to see the rubber seals around your double glazed windows to wear out over time. This can be caused by environmental conditions, age or the manner in which your windows are set up. It is crucial to replace the seals as soon as you can in order to ensure your double-glazed windows are the same as they were when they first came out.

Double glazing that is not performing well is usually evident by a drafty double-glazed window. You will feel a draught around the frame's edges, especially where the frame is positioned to meet brickwork or wall. This is because the seal has been breached, allowing air to get through. In certain cases this may result in damp patches on the surrounding walls, although this isn't as common.

Condensation

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

One of the most frequent issues double glazed windows experience is condensation. The appearance of condensation is often the first sign that the seal on the window has failed. If the appearance of condensation is not treated quickly, it could result in mold growth, and possibly wood rot.

Condensation is most commonly seen in the morning when temperatures rise and humidity levels rise which causes water vapour to form. This includes your windows and isn't something to be concerned about, however it's a good idea to wipe away any visible condensation as soon as you can in order to prevent it from setting in.

Condensation isn't always an indication of a failing window seal. There are many other reasons why your double-glazed windows could leak. Rubber seals on double-glazed windows can wear out over time. This could cause them to break, which in turn will reduce the air gap between the glass panes. If you observe signs of condensation or misting, it is important to have your double-glazed windows repaired immediately.

A tradesman can repair double-glazed windows that have condensation by taking the affected pane off, then putting it back in its place. They will then run hot air through the gap to get rid of any moisture. Then, they'll apply an additional seal to keep the gap airtight.

Repairing your double-glazed windows can be a cheaper option than buying and installing new windows. It is also essential to find a reliable tradesperson to complete the task. Checkatrade can help you find local certified, vetted and verified traders with experience in the repair of double glazing. You only need to enter your postcode, then select the type of tradesman you are seeking to find a list.

Frame Damage

It's possible that one the seals in your frame has broken if you hear crackling noises or other unusual sounds emanating from your double-glazed windows. These seals keep cold and water out of the insulating gap that is between the glass panes, and it's vital to get them replaced as soon as you can to prevent moisture from getting into your home.

Fractures may break because of general wear and tear, or from impact damage caused by children or pets. Often this can be remedied with a simple fix, such as using silicone to fill in the gap or sanding down the area. However, more severe damage may require the insertion of new window frames, which isn't something you should take on your own unless you're skilled tradesman.

Another issue that is common to double glazing is that it becomes difficult to open and close. This could be due to a buildup of dirt and dust in the track or a structural problem like warping. This can be easily fixed by using a bit of elbow grease and a gentle nudge, dependent on the severity.

Moisture that enters your home through damaged double-glazed windows can cause dampness, mould and condensation. This is because warm air in your home is more susceptible to hold moisture than cooler air outside, which means it will easily settle on surfaces like double or single glazed windows that aren't properly sealed.

Fortunately, double glazing near me is that these problems can be corrected and, in most cases, it's less expensive than replacing your windows completely. Double glazing problems are typically covered by a warranty, typically for 10 or 20 year however some companies offer lifetime warranties. Be sure to verify your warranty prior to beginning work. Always communicate with your company in writing, by email or letter, not text messages - this will make things easier if you need to follow-up with them about any issues that arise.

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