This Week’s Most Popular Stories About Repair Double Glazing

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How to Repair Double Glazing

Double-glazed windows are strong and secure, however they tend to wear out over time. The signs that your double glazing is in need of repair include the feeling of draught or condensation between the window replacement panes.

Fogging or condensation between the panes is usually a sign that the seal holding the glass panes has deteriorated. Resealing can repair this.


The seals used in double glazing are an essential part of the overall insulation and energy efficiency of the windows. Located between the glass panes and uPVC frames they provide an airtight, vital barrier that helps to keep out the elements of wind, rain, drafts, and condensation that can lead to damp on windowsills and walls. Additionally, window seals help to keep warm air in and cold air out, near which can drastically reduce heating bills.

It is not common for window seals to develop defects. This is often due to the weathering process and exposure to harsh elements like high winds, rain, ice and snow. It can also be caused by faulty installation or near chemical substances like paint strippers which damage the rubber.

If the window seals are damaged, it can result in moisture and humidity may seep through the glass panes, leading to fogging or misting of windows. It could affect the insulation properties of the double glazing because it will no longer have the inert gas between the panes, which assists in retaining heat.

If you know what to watch for, you can try to do some DIY double-glazed window seal repair. It’s best to hire a professional to do the job. They can reseal windows to improve their energy efficiency and insulation qualities, and take out any unattractive condensation that has formed between the glass panes.

Many double-glazed windows come with a warranty, which means they can be repaired or replaced without cost to the owner. Check the paperwork that came along with your double-glazed windows, or contact the company where you purchased it to determine what assistance is available. It’s also worth looking over your home insurance policy to be sure that you’re covered in case of any issues with double-glazing. If you do have cover it’s important to make sure that your claim is made as soon as possible in order to avoid any unnecessary expenses. You can also check your local authority’s Building Control department for further advice and support.


Double glazing can be a problem. The most frequent issue is misting, which occurs when the seal between two panes is broken and moisture accumulates. Fortunately, misted double glazing is repairable without the cost of replacing the entire window. Repairing it involves removing the damaged pane, blowing air into the gap to eliminate any lingering moisture and creating a new seal.

Glass can be used to create double-glazed windows that come in a variety of shapes and sizes. Some glass is plain like mirrors or safety glass, but it is tempered for strength and safety. Other kinds of glass are coated to improve their properties. This includes solar control glass that reduces glare and stops heat transfer; extra clean glass that is stain-resistant and self-cleaning and the chromogenic glass, which alters transparency according to temperature.

Some manufacturers also offer high-efficiency double glazed units. These are made of insulated glass that has special films to keep the internal temperatures stable which means that cooling and heating systems do not have to be as efficient to maintain comfortable levels in your home.

These are often an affordable alternative to replacing windows, and they could save you a lot of energy. However, these windows require proper maintenance due to the technologies they incorporate can wear out over time.

The most important thing to do is get in touch with the company you purchased your double glazing from immediately you spot an issue. Contact them via phone, and then follow up by writing a letter or an email. You’ll have proof of contacting them and agreeing to correct the problem. This is crucial if you want to claim any warranty you have. Many companies offer 10 or 20-year warranties, and some give lifetime warranties.


The frames that house double glazing are made from materials such as plastic and wood that can be damaged in a variety of ways. Frames that are damaged can allow cold air to enter your home, which will increase your heating costs. Frames can also be bent, twisted, and discolored as time passes. It may be necessary to replace them, or at a minimum paint them and sand them down to bring them back to their original appearance.

If you are having issues with the frames of your windows it is recommended that you call an expert glazier to help you since they have the experience and tools required to carry out this type of repair. It is possible to complete some repairing yourself but it is usually quicker and less expensive to seek professional assistance. A qualified glazier who is trained to complete the work will ensure that the work is done properly and that you are able to claim any expenses back.

One common sign that your double glazing is in need of repairing is condensation building up in between the glass panes. This is usually a sign that the seal has failed and is allowing air to move between the panes. This results in the water level dropping and it can make your home feel cold and stale. This issue should be addressed as quickly as you can to avoid any further problems.

If the window is not damaged or cracked, it may not be necessary to replace it. The frame may be in perfect condition, which is why it’s more cost-effective to replace the glass within the window.

Many businesses offer same-day double-glazing repair services, but it is important to be aware of the requirements you have before requesting an estimate. Sales representatives are known to try and convince people to buy more expensive repairs than they actually need. It is crucial to know exactly what you’re looking for, the amount you should pay and why. This will help you recognize sales techniques that are high-pressure.

Double-glazing should be checked every few years to ensure they are in good working order and to avoid problems. If you do need repairs it is recommended to seek out a reputable company to get a quote as they will have the knowledge and experience needed to resolve your issues quickly and efficiently.


A reputable tradesperson will install a window lock regardless of whether you are installing new windows or repairing double glazing. The installer should go over the various locking options in the estimate and what best suits your living arrangements and the local crime rate. Espagnolette is a very popular choice, which uses mushroom-headed bolts that are inserted behind the frame’s locking positions. They are usually used on uPVC but can also be added to aluminum and wood.

Other locks are designed to limit the number of times a window can open. Consider installing a window lock like a Canzak Restriction cable to your casement window. It works like a door chain lock that can be put on either side of the moving portion to prevent it from opening too much. It’s also easy to fit and one of the few types of locks that can be used on casements.

For sash windows A hinged wedge lock is a quick solution to prevent the lower sash from lifting enough to allow an intruder inside. Cut a strip of wood to the width of the channel that operates the lower sash, fit it in, and near secure it to the wall and frame.

You could also add keys to your sash or casement windows. They are more durable than latch locks and are usually used in conjunction with them to keep windows secure. They are found on the side of a window and are used on double and single hung windows, as well as sliding windows.

Other methods to increase the security of your double-glazed windows are the addition of a shoot bolt lock. These locks are made by shooting bolts from both ends to create a very sturdy lock. These are typically offered as an upgrade and are suitable for commercial and domestic use.

Check that your double-glazing installer is certified by an industry body such as Checkatrade to ensure they have the expertise and experience required to carry out top-quality work in line with their standards.

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