The Complete List Of Double Glazing Window Repair Dos And Don’ts

7 min read

Double Glazing Window Repair

Over time, double glazing may become problematic over time. For example it can be difficult to open the windows or have doors that get stuck. These issues can be easily resolved.

Many homeowners will try to fix these problems themselves. However it should be left to professionals. Trying to do this without the right tools and expertise could lead to damage.

Broken Panes

A window that is damaged is a nagging and uncomfortable issue. It could let cold or hot air into your home and leave a gap that lets in debris or moisture. This can affect the efficiency of your AC or furnace will have to work harder in order to keep your home cool. You may be able, dependent on the weather conditions and Fit if your windows are single-paned or double paned to repair the damage temporarily applying silicone sealant. For a permanent fix, you will need professional help.

Heavy-duty tape can be used to repair a damaged window. A tape strip placed over a crack can stop it from getting worse. However cracks that go all through the glass or one that is too big to be covered with tape will need to be replaced entirely.

Broken glass can result from many things: a pebble from the lawnmower that lands on the window; a drink set down too heavily on a glass-topped coffee table or a pet’s euphoric jump when you open the door. It can also happen naturally when the frames of your windows move in a slight manner, breaking the special packaging material that holds the glass sheets in the right place.

Wear thick work gloves when you’ve broken a pane of glass. Place a cardboard box close to the pane in order to catch any shards. Remove the sash from the frame and work on a flat surface, such as tables. Wear a mask to avoid breathing in glass shards.

After removing the old glass, clean any varnish or paint from the window frame. You can use a heat gun to soften the old glazing putty or metal glazing points which kept the glass in place.

Then, you can measure the opening of the new glass. You should always purchase replacement glass slightly smaller than the opening of the original to allow for expansion and contraction. You can request that your local hardware store or your home center cut it according to these dimensions.

Press the new glass into the frame. If there are any gaps, you can fill them with silicone caulk which is available at a home improvement store. Smooth the caulk by using a putty blade. Add glaziers’ points to the corners and frames of the glass every six inches, so that the glass is held securely in place.


Whether your double glazing windows are old or new, it’s fairly common for them to form condensation. This is particularly the case in winter, when colder air meets warmer glass. While it can cause some issues, it’s usually a major issue. This is because condensation on windows indicates that your double glazing is working correctly.

However, it could be a sign that the seal is not working and water is leaking through the gap between the window panes. If you notice a milky look on your window or if water beads appear on its surface, this issue needs to be addressed to stop mold, mildew, or further damage.

Condensation is easily removed. A technician will drill small holes in the frame of the window doctor to allow the trapped moisture escape. This process is referred to as defogging. It can also aid in removing any stains caused by trapped moisture.

Defogging does not fix the root issue of a faulty window seal. In fact, it may not even when the condensation has gone, because the compromised air that was between the panes is still there. This could mean that you will still not receive as much heat insulation from your windows as you would like to.

It is important to speak with an expert when you notice moisture in your windows to determine the next steps. They might suggest an option such as putting in vents to the windows that allow fresh air to enter but do not allow warm air to escape.

It’s the last thing you want for your double-glazing to go down. This is especially true when it could be expensive to replace. Fortunately, with the right skills, knowledge and equipment, it’s possible to repair your double glazing and keep it in good condition for the long term. If you need repair work on your double glazing call us now to discuss how we can assist. We provide a wide range of services, from replacing one or more panes of glass to installing energy-efficient upgrades.


Leaks can cause damage and are costly to repair. It’s expensive to repair and is often an indication of other issues with your property such as dry rot or mould. This is why it’s crucial to take care of leaks as soon as possible.

If you notice that your double-glazed windows are draughty It is likely that the seal has broken. It could also mean there is no longer any gas argon between the glass panes that is used to create insulation. A professional technician can reseal your window to solve this problem.

Sometimes dirt can cause a double glazed window to appear cloudy or misty. This is typically a sign that the sealing is failing and the glass needs to be cleaned. This can be done by a specialist using high pressure water jets that will swiftly remove any dirt or debris.

If however, condensation is forming between the two glass panes of your double glazing, it is an indication that the seal has opened an open and there is no longer any argon between the panes of glass. This is a serious issue and indicates that your double glazing isn’t effectively insulating your home, in the way it should. The glass unit is able to be replaced, but you will need to do it sooner rather than later, as the performance of the double-glazed window has been impacted.

If you own double-glazed windows covered by warranty, you must contact the installer and report any issues with the units or seal of the glass. It is highly unlikely that the warranty will be able to address these issues. If you attempt to alter the seals with the units or try to make any repairs yourself, this could invalidate your warranty, which is why you should leave these repairs to the professionals. We recommend hiring a specialist in double glazing repair.

Weather Damage

Double-glazed windows require a sturdy frame to keep the glass panes in place and ensure they stay in place, especially in extreme weather areas. Ice, snow, high wind and violent storms can cause damage to your windows. If you see cracks, dents or holes in your windows, contact an expert to repair your double glazing.

If you see water running down the sides of the window, it could be an indication that the seal on the inside is cracked and let in water into your home. The uPVC window frame or aluminum window frames might also be warping or bending. To fix this issue, you’ll have to replace the window seal, and then insert it into the frame.

Window seals ensure that double-glazed windows are airtight. They prevent heat from escaping your home and stop condensation between the glass panes. Window seals are typically comprised of upvc repairs near me aluminum, timber or aluminum and help to hold the glass in the right place. You can experience problems like energy loss and draughts when the window seals fail.

Misting windows are a common issue that is due to the insulating gas inside the double-glazed window deteriorating. The argon gases keep the glass in place, and create an airtight sealing however if the glass is damaged or worn out, the gases could escape. The gases that escape can cause condensation between the glass panes.

This problem can be fixed by replacing the window seal, re-inserting the glass and then applying an anti-fogging solution to prevent condensation from occurring in the future. It is recommended to employ a professional to do the job for you.

While it is crucial to have double-glazed windows, they aren’t immune to damage and will require to be repaired from time to time. Most windows can be repaired without the need to replace them. It is best to have a few basic tools on hand. You will need protective gloves and a tape measure, scotch tape, or a transparent film, nail polish, and a sheet of plastic that is cut to size.

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