The Ultimate Glossary For Terms Related To Repair Double Glazing Windows How to Repair Double Glazing Windows

If you have double glazing there are times when you might encounter issues with gaskets, hinges, and handles. It is often possible to fix these problems without having to replace the entire window, saving time and money.

A common issue is condensation that has accumulated in the gap between the two glass panes. This is usually a sign that the window has become defective and requires attention.

1. Broken Panes

A double pane window that is broken is a serious problem and could leave your home exposed to the elements. However, it is not always necessary to replace the entire window sash to resolve this issue. Double pane windows can be repaired with a special adhesive placed inside the cracks.

This repair method is typically used to stop superficial cracks (such as stress cracks) from becoming worse and can happen when temperature fluctuations cause the glass to expand and contract. If your glass has broken it may be necessary to remove and replace the entire window.

Sometimes, the seals between two glass panes can become damaged or worn out, causing condensation and misting of the windows. These problems are usually caused by moisture trapped between the glass panes or that seeps into the wall through the window frame. Moisture is not good for double-glazed windows, regardless of the source. It can cause mold and water damage that is costly to repair.

To get the misting or condensation issue under control, first try wiping your double-glazed windows with cold water. This will help temporarily fix the issue, especially in the case of warm and humid. You can also consider using a dehumidifier in the area in which your double-glazed windows are which is particularly helpful during the summer.

If the issue persists, a double glazing specialist will visit your home and clean the space between the panes of glass. A tool can also be used to make an outline around the outside of the windows, which allows you to cut the glass using a glass cutter. After that, take out all glazing points from the window's opening. This should be done while the sash is still in place, but it's easier to work on a flat surface such as a table.

2. Seals

The window seal is an essential component in double glazing and plays a crucial part in keeping your home energy efficient safe, draught-free and secure. The seal spans the inner frame's uPVC frame and creates an air-tight seal over the gas-filled space between the two panes of glass in the window. This is a key element of the insulation effect your double glazing delivers, and problems or frank failures to seals can significantly reduce this benefit.


If your seals aren't doing their job, you'll notice condensation appearing between the panes. It's not just ugly; it can lead to mould and damp in your home. It can damage flooring, furniture, walls and cause serious health issues for those with respiratory conditions such as asthma.

The good news is that the majority of double glazing companies will provide a service to repair windows without replacing the entire unit. This is not only less expensive but also faster and more environmentally-friendly. There are also DIY alternatives, such as caulking for leaks or moisture intrusion, or self-adhesive seals that are applied directly at the junction of the window sash and the frame.

Calling a professional is the most convenient and effective way to fix a broken window seal. They'll be able to replace the window seal to prevent the ingress of moisture and air which can cause costly damage and can make your home more energy efficient.

Check the warranty period on your double glazing. It's usually between 10 to 20 years. This can save you money in the event that the seals have failed and the windows must be replaced. Some installers will drill holes in the misty double glazing to eliminate the moisture and make a new seal. This will stop it from misting again in the future. However, this is a short-term fix and a plug needs to be inserted into the hole in order to keep it shut.

3. Mechanisms for Locking

Double glazed windows utilize gaps of air between glass panes in order to insulate against varying outside temperatures and also to keep the heat inside the home. This kind of window can be referred to as an insulation unit (IGU). These windows can save money on heating bills by reducing energy use. However, they aren't durable and there are some issues that could arise that require double glazing repairs .

Many of these issues are easy to fix, and they're much cheaper than having to replace the entire window. Contacting a company that offers double glazing repair will ensure the job is done properly and with minimal fuss. Most of these companies will offer an estimate for free to allow you to evaluate the cost and quality of their work.

Examine the warranty included with the double-glazed window. This will usually cover the costs of a repair. This is a standard feature of double glazing and typically lasts for 10 to 20 years, although certain companies offer lifetime warranties.

If you are unable to open your double glazed window or it appears as if there is mist between the panes, it is probably due to the seal blowing. This can happen when the frame of your window moves slightly or if the special packaging that holds the glass sheets in place is damaged over time.

You can repair double-glazed windows yourself, but it's more cost-effective to hire a professional. It is important to follow the instructions of the manufacturer and employ the right tools. It is also important to keep in your mind that if you try to remove the glass yourself then you will be voiding any guarantee that you might have and could result in a larger bill than if you had simply made contact with the company from whom you bought your windows.

Once the broken pane is removed you can replace it with plastic spacers to make sure it fits in the frame. You can also add any uPVC beading. You can then fit the gasket with a new seal and secure the window.

4. Weatherproofing

If your double glazing windows are difficult to open or have sagged, there are ways of fixing them. Oil the hinges, handles or mechanisms to see if this helps. Another thing that you can do is to replace the gaskets, which can increase the efficiency of your windows, and also stop them letting in draughts and cold air. These are available at a hardware store or online. They are easy to install. If you don't have the time to do it yourself, you could always ask a professional to complete the task for you.

Condensation in window panes is a different issue that is easily fixed. It is caused by a broken window seal that allows moisture to pass through the glass panes. This can cause the glass to cloud up, which is both unsightly and ineffective.

One way of addressing this is to replace the gaskets which can be done at home by anyone with a little DIY experience. Gasket sealer is essential to ensure a tight seal and will help reduce energy costs. Alternatively, you can make use of a calk to fill any cracks in your windows and give them an extra boost in weatherproofing.

The seals may also fail on double-glazed windows. This could be due to paint being applied to the windows, home renovations or general wear and tear. It is crucial to repair your double-glazed windows as quickly as they begin to get misted.

Double-glazed windows are an excellent addition to any home. They provide you with energy-efficient and safe windows, which will keep the heat in and the weather outside. There are instances when replacing a double glazed windows is the best option. This could be the case with broken panes, extensive rot and frames that are not suitable for the double glazing units.