Double Glazing Window Repair Tips From The Best In The Business

7 min read

Double Glazing Window Repair

Over time, double glazing may develop problems. For instance it can be difficult to open windows or have a door that snags. These problems can be easily fixed.

Many homeowners try to solve these issues on their own. However, this should be left up to professionals. Doing this without the proper tools and knowledge can cause damage.

Broken Panes

A broken window pane can be a gruelling and inconvenient issue. It could let hot or cold air in your home, and leave a gap which allows moisture or debris to get into. This could also affect the efficiency of your AC or furnace will have to work harder to keep your home cool. You may be able, dependent on the weather conditions and if your windows are single-paned or double-paned, to repair the damage for a short period of time by using silicone sealant. A permanent fix requires professional help.

The tape is strong enough to repair a cracked window. A strip of tape placed over a crack can prevent it from getting worse. A crack that is large enough to penetrate the glass, or is too large to be covered by tape will need to be completely replaced.

Broken glass can be caused by many things: a pebble from the lawnmower that hits the window; drinking a drink that is set too heavily on a glass-topped coffee table; or window doctor a pet’s excited leap when you open the front door. The frames of your window could shift over time and break the plastic that holds the glass sheets in place.

Wear a pair of thick gloves when you’ve broken a pane of glass. Place a cardboard box near the pane to collect any shards. Remove the sash and work on an even surface, such as the table. Wear a mask so as not to breathe in the glass shattering.

After you have removed the old glass, clean any varnish and paint from the window frame. You can also use a heating gun to soften any old glazing putty or metal glazing points that held the glass in place.

Then, you can measure the opening of the new glass. To allow for expansion and contracting it is recommended to purchase an alternative glass that is slightly smaller than the opening. Have your local hardware or home center cut the glass to these dimensions.

Once you have the glass, put it in the frame. If there are gaps, you can fill them with silicone caulk which is available from a home improvement store. Smooth the caulk by using a putty knife. Add glazier’s points to edges of the glass frame every six inches, so that they hold the pane securely in place.


Whether your double glazing windows are old or brand new, it’s fairly common for them to develop condensation. This is particularly true in winter when colder air collides with warm glass. It could be a problem but it’s not typically a big problem. Condensation on windows is a sign your double glazing system is working well.

It could be an indication that your seal is not working and water is flowing through the gap. You may notice an appearance of milky water on the window, or water beads appearing on its surface. This is something that needs to be dealt with to prevent the growth of mold, mildew or any further damage.

Condensation can be easily removed. A technician will drill a tiny number of holes in the window frame, allowing the moisture that has been trapped to be released. This process is known as defogging. It may also be used to remove the stains caused by trapped moisture.

Defogging does not fix the root cause of a faulty window seal. In fact, it may not be able to do so even in the event that the condensation is gone, as the compromised air that was between the panes is still there. This could mean that you still not receive as much heat insulation from your windows as you would like to.

If you have noticed moisture building up in your windows it’s an ideal idea to consult with an expert as soon as you can to figure out what the next steps should be. They might suggest solutions such as adding vents to windows that allow fresh air to circulate but not allowing warm air to escape.

It is the last thing you want for your double-glazing system to break down. This is especially true when it can be expensive to replace. With the right skills, knowledge and equipment, it’s possible to repair your double-glazed and keep it in top condition for the long term. Contact us now if you require double glazing repairs. We offer a wide range of services, from replacing one or several panes of glass that has been tempered to installing energy efficient upgrades.


Leaks can cause damage and can be costly to repair. It’s costly to fix, and is usually a sign that your property has other issues such as dry rot or mould. This is why it’s essential to take care of leaks promptly.

If you feel a draught coming from your double glazed windows, it’s likely that the seal within the sealed unit has broken. This could also mean that the argon gas used to seal the glass panes has been removed. This can be fixed by a specialist technician who will repair the window.

Sometimes, dirt can cause a double-glazed window to be cloudy or misty. This is usually a sign that sealing is deteriorating and the glass should be cleaned. A specialist can accomplish this by using high-pressure water jets to quickly clean the glass.

If condensation is forming between the two glass panes of your double glazing then this is an indication that the seal has opened an open and there is no argon between the panes of glass. This is a serious issue and could indicate that your double glazed window does not adequately insulate your home well as it should. It can be fixed by replacing the glass unit, but it must be done earlier rather than later, as the performance of your double glazed window doctor ( has been affected.

If you have double-glazed windows that are under warranty, you should contact the installer and report any issues with the units or seal of the glass. It is highly unlikely that the warranty will cover these issues. If you attempt to play with the units or attempt to repair them yourself, it will void the warranty, and you should leave these repairs to the experts. We suggest that you employ a specialist in double glazing repair.

Weather Damage

Double-glazed windows require a sturdy frame to keep the glass panes in place and keep them in place, particularly in extreme weather areas. Ice snow, high winds and violent thunderstorms can damage your windows. Get a professional’s help to repair double glazing if you see cracks, dents, or holes.

If you notice water flowing out from the bottom of your window, it could indicate that there is a broken seal inside the window. This allows moisture to infiltrate your home. Additionally to that, your uPVC or aluminum window frame might be bending or warping. To correct this, you will have to replace the window seal and then re-insert it into the frame.

Window seals ensure that double-glazed windows are airtight. They keep heat from entering your home and prevent condensation between the glass panes. Window seals are typically constructed of uPVC aluminum, timber or aluminum and keep the glass in the right place. When window seals fail to break down, you can be faced with issues like energy loss, draughts and windows that are misty.

Misting windows are a common issue and are the result of the gas used to insulate the double-glazed window deteriorating. The argon gases keep the glass in place and form an airtight seal however if the glass is damaged or worn out, the gas can escape. The gases released by argon can lead to condensation between the glass panes.

The issue can be fixed by replacing the window seal and re-inserting glass. You can also apply an anti-fogging product to stop future condensation. It is best to hire an expert to complete the job for you.

Double-glazed windows are important but they can also be damaged and require to be repaired. Fortunately, most windows can be repaired without the need for replacement. To do this, it’s an ideal idea to have a few basic tools on hand. You’ll need a gloves that are protective, tape, transparent film or scotchtape, nail polish, and a plastic sheet.

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