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10 Essentials About Repair Double Glazing You Didn't Learn In School
How to Repair Double Glazed Windows

Double-glazing in many homes can cause problems like condensation, a reduction in the insulation quality and windows that are difficult to open. These issues are typically caused by problems with the hinges or handles.

It is possible to fix these windows by following a couple of simple steps.

Cracked Panes

A double-paned window that is damaged is a serious problem that must be addressed immediately. Double- and triple-pane windows are insulated using gases that ensure warm air is kept in during winter and cold air out. Therefore, when one of these panes breaks, that gas escapes and your home is less insulated. Cracks can also get worse over time, so repairing them early can prevent a larger issue in the future.

The most important thing to do when a crack appears is to determine what caused it. It's possible that a collision or structural problem caused the crack. In this instance, it is important to check your other windows for damage in order to determine the next steps.

It is also important to look at the surrounding area to see whether there are any other problems that could be contributing. If your windows are situated near other doors or walls, the stress caused by temperatures can be causing cracking.

There are many ways to fix a crack depending on the source. If the crack was caused by an impact, you may be able replace just the damaged glass. Alternatively, you might need to replace the entire window frame. This is a more difficult solution that requires expert assistance.

If you're dealing with a crack that didn't cause the frame move, it's generally simple to apply an adhesive between the fractured panes. This will repair the crack and preserves your window from any further issues It's definitely worth trying in this instance.

Another option that's fairly simple is to cover the crack with clear tape. It's not the most appealing solution, but it does stop bugs and drafts from entering your home. The next step is a glass repair film designed to be quickly applied and provides more robust protection. Many double glazing companies offer this product, which is worth the investment to protect your windows.

Condensation Build-Up

Condensation build-up between the panes of double-glazing is one of the most common reasons why people have to fix their windows. This is because it indicates that the seal between the two panes of glass has failed, allowing water vapour to enter. This moisture can cause condensation, as well as other issues that may require the replacement of the window.

Double glazing is much better at decreasing condensation than single pane windows since it has an air space between the glass that is either filled with air or gas that is not toxic. The space is separated from the frame by a spacer bar, which acts as an insulator to help prevent heat loss. In many cases the spacer bar has silica gel which is effective in preventing moisture from getting between the glass panes.

This is the reason it is important to wipe down your windows frequently and keep them clean, since this will reduce the amount of condensation that accumulates and allows it to evaporate. Opening windows and using extraction fans can help remove excess moisture.

Another method to fight condensation is by installing a dehumidifier inside your home. They can be picked up for around PS60-PS150 and are a wise investment that will not just reduce condensation, but also stop the growth of mould in your home as well.

Condensation between the glass panes of your double-glazing can occur due to the fact that the outer air is colder than the inside window pane, which causes the surface to cool and cause condensation. It could also happen when you experience changes in temperature, such as turning on the heating or cooling your home.

Unfortunately, upvc repairs can also be a sign of a poor double glazing design since some older units are made with rubber strips instead of the more modern silicone version that can degrade over time. In certain cases it's possible to repair your seals however it's important to note that this will only offer a short term solution as the window will eventually degrade in another location, which means you'll have to replace it eventually.

Stained Glass

If you are having issues with a double-glazed window handle or lock it is usually possible to fix it, rather than replace the entire glass pane. However, this is not always a do-it-yourself project as specific tools are required to ensure that the repair is done correctly and does not compromise the seal or the function of the window.

Most double glazing owners complain that their windows or doors are difficult to open. This is usually due to small warping in the frame or the hinges, but it could be caused by problems with the sealing. It is possible that the problem is more than that and you should talk to an expert to discuss your options.

Another frequent complaint is the forming of condensation between the glass panes. This could be a sign of a faulty seal that is not retaining the gases that insulate between the glass panes. Again, this is an easy fix. The gas insulating the panes can be replaced by using an adhesive that is specifically designed to close the gap between the panes.

Start by placing the faulty window on a flat surface. Peel back the black sealant, revealing the silver spacer bar. cut it with a sharp blade making sure to stay below the base of the glass and silver spacer bar. Once you have separated the two pieces, place the top glass pane on the work surface. It is recommended to wear gloves during this step. Clean the glazed side that faces the frame, as well as the spacer frame. Be sure to remove any marks and smears, since these can impact the seal of the window when it is put back together. The last step is to place the new spacer on the glass pane. Spread the adhesive along the edge to allow it to adhere to the glass and silver frame. Let it set before reassembling. This is usually a task for two people as it can be tricky to arrange everything.

Gasket Seals

While double glazing is highly durable and designed to last for a long time to be, there are problems that may arise occasionally. From draughts, to problems in closing or opening it is essential to address any problems quickly to avoid them becoming worse.

Condensation between the two panes is one of the most common issues owners of double-glazed windows report. This is caused by the failure of the desiccant, that absorbs moisture in the air within the gaps that are insulated. Once the desiccant fails the condensation will form within minutes and leave a dark mark on the window.

Another problem can occur when the gasket seal fails to keep water and other pollutants from entering the insulated gap. This could cause leaks around the edges of the frame, and also damage the surface. If you spot any indications of a leak in your double glazed units it is crucial to notify your installer as soon as you can.

Many companies will provide a warranty for their products. These usually come with a guarantee period of either 10 or 20 years, with some even offering lifetime assurances. Review the terms of your warranty to find out what's covered and how long it will last.

It may be worth trying to solve any hardware issues yourself prior to contacting your double glazing supplier to request repairs. For instance, you could try cooling the mechanism or lubricating it to see if that resolves the issue. You could also try cleaning the handle or window handle prior to reinstalling it.


It is also essential to check whether your local council has insulation grants available to assist in the repair or replacement of your double-glazed windows. There are a variety of ways to apply and some areas will require a certain form of application or proof of eligibility, so it is best to check with your local authority prior to making a decision on the best way to proceed.

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