How to Repair Double Glazed Windows
Even uPVC frames can degrade with time, leading to problems such as draughts and condensation.
Fortunately, the majority of these issues can be fixed without having to buy a new door or window. This is especially true for foggy double glazing.
Draughts
Draughts could indicate that the sealant is not working. You can test whether your window is opening up to draughts by looking around where the sash meets the frame If you notice an air draught, it could be an indication that the sealant has worn down. If you're unsure then consult a professional to conduct a thorough inspection.
Although you may be attracted to attempt an DIY double glazing repair that is draughty, it's usually better to leave this job to the professionals since erroneous repairs can damage your windows and cause more problems in the future. A reputable tradesman can also ensure that the work is completed right and lasts for longer than you think it will.
One of the most frequent problems associated with uPVC doors and windows is that they are difficult to open or close. This could mean that the handles or hinges have been damaged or that the seals have failed.
In
window glazier , this can be fixed by adjusting the window sash, or by replacing the hinges. However, this is quite a big job and will require the knowledge of an expert installer.
If your uPVC doors or windows are stuck in the closed or open position, it is important to have them fixed in the earliest time possible. This will help prevent further damage and will aid in improving the energy efficiency of your home.
Most double glazing is covered by a warranty. It can last anywhere from 10 to 20 years or more. It's worth checking the details of your warranty and then contacting the company you bought the windows from if you discover any issues.
Many companies offer to drill holes in misted glass and then insert an insulator that draws out moisture and create a seal. However, this is only temporary solution, and windows are likely to mist up again in six months or so.
This issue is typically caused by condensation between the glass panes of your uPVC windows. This is a sign your uPVC windows are no anymore airtight and the seals have failed. The gas that is used to insulate is thus not able to hold the windows in place.
Condensation
Condensation can be a problem when using double glazing. It usually appears as a mist, or small droplets of water, between the panes. It could be caused by a number of factors, such as high humidity, low internal room temperatures or a lack of air circulation. It can also be a sign of an issue with the seals or that the insulation isn't functioning properly.
This means that cold air can get in and out, along with warm air, which could lower the efficiency of your windows. Double glazed windows should be maintained regularly to keep the glass clean. If you don't clean your double glazed windows regularly the glass will become dirty and the seals could degrade over time. In certain cases it is necessary to engage a professional cleaner to keep your windows looking great.
The good news is that there are options to stop condensation from forming in your double glazed windows, like installing trickle vents. This will help to maintain the temperature inside your home, and it can also reduce the amount of water that accumulates on the windows. It is also possible to use windows that have an upward slope which will let any excess water go away from the windows.
Contact the company that installed your windows when you notice them fogging up or becoming misty. They might be able to repair the damaged parts of the window or replace the glazing unit entirely. In some cases it is covered under your warranty, so it's important to check what's covered before you attempt a repair yourself.
Double glazing that is professionally repaired will save you money and time in the long run. It will also ensure that your windows remain in the best possible condition for as long as is possible. It is also a much better alternative than replacing your windows entirely, because this can be costly and will not offer long-term security.
Water Leaks

If you notice water leaks from your windows, it is a sign that the seals are in need of replacement. If left unchecked this can result in damage to your walls, ceilings and furniture. It could also result in an increase in heating bills because the heat escapes your home through your windows.
In the case of mild damage the double-glazed unit might require repair. However, in more severe situations it might be essential for the entire unit to be replaced. It can be expensive, but it is better than letting water leak in.
Double glazing can turn misty because of the gap between two panes. This allows moisture to get in which can then condense in cold weather. This can lead to various issues, including condensation and draughts, but it can also decrease the energy efficiency of your windows considerably.
Some companies offer to cut holes in your existing misted-up double glazing, and then inject chemicals that eliminate the condensation and fog from within the window. While this is a cost-effective method but it's not a permanent solution. The holes that are drilled are often blocked again with moisture after six months.
Another reason that misting can occur is that the frame of your windows shifts slightly over time and this can break the seal. This can also be the cause of draughts, condensation and leaks.
Over time, the gaskets that are used to seal your double-glazed windows may shrink or crack. They can be replaced easily and at a lower cost than replacing windows. This is a much better option for the environment and your pocket than purchasing new windows.
Double glazed windows can develop problems over time. Some of these can be repaired however it is essential to act quickly to avoid wasting money. A damaged double glazed window not only reduces your homes energy efficiency, but it could be also a security risk.
Damage
Double glazing may appear to be indestructible initially but it will be damaged in time. Fortunately, a lot of these issues are simple to address. However, a small percentage of double-glazed window problems can be more serious and should be addressed quickly and by professionals who provide a repair service and typically offer some kind of warranty.
Double glazing with condensation is a major issue because it is a sign of a ruptured seal between the two panes. This indicates that heat (which you are paying for) is escaping from your home and cold air is entering. This can be extremely uncomfortable and can even lead to mould and mildew.
Cracks and chips could be an indication of issues with your double glazing. This is due to the fact that the glass that forms the windows is typically held in place by a metal or plastic frame. This can break as a result of constant exposure to sunlight. Double glazing can also be damaged by force or blow, like a lawnmower cutting the grass.
A common problem that can develop with time is the difficulty of opening and closing doors and windows. This could be due to weather conditions or the frames could have shifted slightly over time.
A less serious but nevertheless frustrating issue that can arise is the appearance of a dislodged air. It could be due to various reasons, but typically it is due to the the gas cavity between the glass. This is usually a straightforward repair that involves replacing the sealed unit.
Draughty windows can be hard to pinpoint the source of the draught However, a simple test can help. Hold a match or incense stick to the frame and see how it moves, this will indicate if there is a draught at that point.