Repairs to Double Glazed Windows

Double glazing is an excellent way to make your home more energy efficient. Its primary benefit is to keep heat in while preventing cold air from entering your property.

Double-glazed windows can reduce noise and increase your home’s value. They can, however, have issues from time to some point. The good news is that repairs are usually cheaper than replacement windows.


Double glazing employs various seals to ensure that the two panes are held securely together and warm air can pass through while cold air is kept outside. Seals are required based on the type of windows you have. A reputable installer will give you advice on the best option for your requirements, and explain how the windows are designed to work with their seals.

Windows are coated with protective coatings at the time of manufacture to help keep them in good condition and to prevent the damage caused by weather extremes. The coatings may wear off when they are not maintained regularly. It is essential to repair the seals if the coatings wear off. This will stop draughts and condensation in double glazing as well as keep your energy efficiency in check.

Oiling the hinges, handles and mechanism can often fix double-glazed windows that have become difficult to operate or have dropped/sagged with time. This will make it easier to move doors or windows and could even fix the issue. If the issue persists, it is best to speak to your installer. It is important to note that certain issues cannot be repaired, particularly if the double glazing was installed by a company that is not reputable.

Cloudy or misty windows are typically caused by a damaged seal between two panes of glass. This can be an indication of a deeper problem, such as excessive drafts and a change in temperature of the room. Window seals that fail to function properly let outside air into your home, which will impact your comfort and increase your energy bills.

Resealing windows that are double-glazed can be costly. It is also important to determine if your windows require replacement rather than sealing them. This is especially true in the case of windows that are seriously damaged or if you have extensive rot on the frame. Make sure that your windows are covered under warranty to lower the cost.


Double glazing can improve insulation in your home. This is especially true if you reside in an area that is cold. This means you can turn the heating down a bit, and you’ll also reduce your energy bills. However, there are some issues that could arise with double-glazed windows and they should be addressed as soon as possible. A trusted tradesperson will fix your double-glazed windows swiftly and efficiently. You can search on websites like Checkatrade to find tradespeople who have been verified and tested to ensure the highest level of service.

The seals between the panes of double glazing can crack. This can lead to condensation and mist to form. This can be fixed fairly easily, as the glass will need to be removed and hot air piped in to eliminate any remaining moisture. Then, the seal will be put back in place, and the window is sealed to stop any water from entering the window in the future.

A frame that has sagged or is difficult to open can be an issue. It is easy to fix by lubricating the hinges or mechanisms with a suitable oil. In extreme situations it may be necessary to replace the frame.

The biggest benefit of double glazing is that it helps to reduce the noise outside. This is an advantage for those who live close to airports, highways or noisy neighbors. Double glazing also reduces medium to high-frequency noises like noises, music and voices which makes it easier to unwind in your home.

Double glazing can also shield furniture and décor from sun damage. This is due to the glass blocking the harmful UV rays that can cause them to fade over time. The extra insulation also makes it easier to keep the temperature of your home, which could keep you from overheating during the summer months and keep your heater on all day long during winter. This can make your home a lot more comfortable and can also increase the value of your home.


Double glazing can be difficult to open or close if the mechanisms are stiff. Ageing or extreme temperatures could cause this. You can try cooling or fluidizing the mechanisms and hinges, but it’s generally easier to get the problem fixed by professionals.

Double glazing frames can also have issues such as misting in between the glass panes. It can be difficult to fix this issue on your own, but a qualified technician will be able to create an entirely new seal and stop the misting.

Even though double-glazed windows are designed to last, it’s important to make any repairs as soon as possible. This will help to maintain the effectiveness of the window and also avoid problems like draughts and moisture collecting in the frame’s corners.

You should also be aware that many double-glazed windows come with a warranty, and some even offer lifetime guarantees. It is important to understand what they cover before you start any work. The company that you purchased the double glazing will usually provide contact details and double glazing repairs specifics about any warranties that you may have.

It is best to speak with an expert tradesperson you trust should you encounter any problems with your double-glazed windows. Checkatrade will connect you with window experts in your area that have been checked. You can reach them through our online enquiry form, making it simple to get a free quote. You can rest assured that the person you choose possess the necessary skills and expertise required to carry out the correct double glazing repairs for your home. Click here to search for an expert in double glazing in your area and find out how they can help you. If you prefer, you can contact us at 0800 018 5897 and we’ll be glad to recommend a tradesperson who is suitable. We’ll give you an idea of tradespeople based on your requirements and postcode of the most appropriate tradespeople.


The window gasket, which is glazed, is an essential component of double glazing. It’s designed to provide an all-important seal between the frame and sash and to prevent air infiltration. However, over time, the quality and performance of a gasket could decrease. It is therefore crucial to be able to recognize the signs of deterioration and to act quickly.

The most frequent sign of a deteriorating gasket is visible black streaks on the window frame and sill. These stains are the result of the leaching of oil from the rubber as it degrades. The rubber then becomes dry and shrinks. The gaps that result from this in the window frame as well as glass let air infiltrate the building envelope, causing water damage. In addition, draughts as well as cold spots can be observed in buildings and rooms where the windows are located.

In the long term the degradation of gaskets could lead to increased expenses for maintenance and energy bills for property owners. Therefore, it is important for building managers to keep track of the damage to gaskets and upvc door repairs near me, and make regular checks of the condition of their double glazing.

It is also important to understand that the loss of gaskets isn’t necessarily a sign that your double glazing needs replacing. In many instances, a damaged gasket can be repaired by using overlay components, which are then glued to the existing frames and the window sash. This is a much cheaper alternative to a complete replacement and can reduce repair costs.

While it is possible for you to seal your double-glazed windows but it is usually more affordable and simpler to employ an expert. This will not only help you save time but also ensure all work is completed in accordance with the original specifications. Furthermore, a professional double glazing repair business is likely to give you a certain amount of guarantee on their work. This will give you peace of mind, and reassure you that the job was done properly. You will also have access to technical assistance should you require it in the future.

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