This Week's Most Popular Stories About Double Glazed Window Repair How to Repair a Double Glazed Window

Double glazing is an effective way to increase the insulation of your home and increase its energy efficiency. It can have problems like condensation and draughts.

Repairs are typically more cost-effective than replacement. Let's take a look at some of the most common alternatives for repairs to double-glazed windows:

Broken Panes

The first step is to remove the broken pane from the frame. Wear a pair of thick gloves and set up a cardboard box close by to catch any glass fragments that fall as you work. Make use of a utility knife cut the glass around the window pane that has been broken and make sure you wear a mask and eye protection due to the possibility of lead in the frame. Make use of pliers to take out any clips or nails that are securing the windowpane. Scrape away any old putty or metal glazing points after the glass has been removed. A heat gun can be used to in softering the putty if you need to.

Once the old putty is removed Re-grout the grooves and apply the new silicone caulk using a silicone caulking gun. It is a good idea to test the fit of the new window within its frame before applying the final caulking. Make sure the grooves in the frame are not contaminated by rust, paint, or gunk and are not too narrow to accommodate the window.

Then take upvc window repairs to replace the sash using an appropriate wood molding that matches the frame of the window. If the window frame has become damaged, it is easier and more cost-effective to replace the entire unit than only a single pane.

In the past, double pane windows were made of two pieces of glass separated by the help of a spacer. They were then filled with air or an gas for insulation. However, in recent years manufacturers have shifted to glass units that are insulated (IGs) that are more efficient in energy use and are resistant to seal failure. In a double-pane windows with a damaged IG water from the surrounding air gets into the window and then condenses on the inside of the glass. This process eventually damages the insulating properties of IG and leaves an unclean residue on the glass.

A glass repair professional can replace the entire IG or just the broken surface. This can be a time-consuming and costly process, but it is the only option to fix a defective seal allowing water into the home. Selecting high-quality windows from a trusted manufacturer and having them installed by an experienced technician can prevent further issues with the seals.

Misted Panes

The window frame holds two or more panes of glass that are separated by an air-filled space. The air, often filled with argon gas to ensure better energy efficiency, helps to keep warm air inside and cold air outside. Unfortunately, windows can start to fail and you'll notice a hazy fog growing between the panes of glass. You may think it's time to replace the entire window but it's not as easy as simply removing the broken pane and replacing it.

In the majority of instances, a window that is misty indicates that there is a problem with the seal between the two panes of glass. The condensation or mist indicates that moisture has entered, which damages the insulation of the double glazing. This is why it's important to pay attention to the care of your windows and keep them clean.

If you see condensation between the glass panes it is a sign that there is a lot of moisture in your home. You should dehumidify and take other measures to increase the airflow in rooms where this occurs often. If the condensation is just on one side of the window, or is visible between the glass's panes, it means that there is an issue with the seal and you'll have to fix it.

There is no way to reseal windows that have double glazing to bring back its energy efficiency. If the seal is damaged the gap lets cold air into your home and warm air to escape. This can reduce the insulation power of your home, making it costlier to heat.

Some companies offer to make holes in the window's pane of glass to remove the condensation. However this is an in-between solution that will unlikely to last for more than six months. It is also not recommended that you attempt this yourself, as it could be extremely dangerous without the proper tools and experience. Double-glazing professionals will employ special equipment to safely remove the condensation and install new air vents, which should help to prevent the possibility of misting in the future.

Frame Fragment Damage

Even with the best care double glazing is susceptible to developing problems. Some are minor and can be repaired while others are more severe and need to be replaced completely. This is a choice that is taken by the owner of the property, based on the amount of benefits they will receive from double glazing and the value it will bring to their home.


If you experience difficulty opening and closing your windows, it could be caused by misting or a problem with the frame. Repair your windows as quickly as you can to prevent further damage to the double glazing.

The frames of your double-glazed windows are designed to keep the glass panes in their place and stop them from moving, but with time, the special packaging that aids in this can wear down. This could cause the glass sheets to move, which could cause the seal to break and cause misting. The space that is used to insulate between the panes could also cause misting, which indicates that there is a broken seal.

A common problem is windows that have sagged over time and are difficult to open or close. This can be corrected by changing the mechanisms and hinges. It is important to note that a lot of new double glazed windows are covered by a guarantee and in this instance it's a good idea to contact the company from whom you bought your double glazing to get information regarding what to do.

It is possible to repair your own double-glazed windows, but it is normally better to consult an expert and make use of their knowledge and expertise. Professionals are able to diagnose the problem and provide the proper double glazing repair quickly and effectively. You can also avoid voiding the warranty by not attempting to repair your windows without the proper expertise.

Weather Damage

While you might think of double pane windows as immune to weather damage but if you live in an area prone to ice storms, hail, high winds and torrential rains windows, their frames and seals could take some serious battering. The best way to make sure your windows remain in good working order is to regularly inspect them and repair minor dents and chips as soon as you discover them.

Blown windows are among the most serious issues you could face with your double glazing. They occur when a gap forms between the two glass panes which causes moisture and air to enter your home. This is usually an indication of deterioration or a flaw in the insulating material that divides the panes.

Another problem that many homeowners face with double-glazed windows is condensation that forms between the panes. This is caused by the warm air inside your home being warmer than the cooler air outside. The difference in temperatures forces the warmer air to expand, which can cause the window's seals to break or weaken with time.

Foggy windows are a common issue with double-glazed windows. This is a typical issue that can be fixed without replacing the IGU. This is an indication that your window panes' seals require resealing.

You'll need to drill an opening between the window panes. You will have to drill a hole large enough to allow for the installation of pipe cleaners or another long object, with cloth at the end. Then, you'll need to use the cloth end to clean your windows and eliminate any condensation that is not removed. This will help to form a an even seal and stop any further fogging of your double-glazed windows.

This is only an interim solution for windows that are foggy. Condensation will return as soon as it rains, or if there is an increase in humidity. If you want a permanent solution, you will need to replace your IGU with a fresh one.