How to Repair Double Glazed Windows
Even uPVC frames may degrade with time, leading to problems like condensation and draughts.
Fortunately most of these problems can be resolved without having to pay for the replacement of a door or window. This is especially true of foggy double glazing.
Draughts
Draughts are a frequent double glazing repair issue and can be a sign of issues with the sealant. You can determine if your window is letting in draughts by feeling around where the sash meets the frame If you notice an air draught, it could be an indication that the sealant has been broken down. If you're unsure, it's best to contact an expert for a thorough inspection.
You may be enticed by a DIY fix for your windows that are drafty however, it's best to leave the job to the experts. Incorrect repairs can harm your window and cause additional problems in the future. Employing a reliable tradesperson will also ensure that the work is completed correctly and lasts as long as is possible.
One of the most frequent problems with uPVC windows and doors is that they become difficult to open or close. This could mean that the hinges or handles have been damaged, or that the seals have failed.
In most instances, this can be corrected by re-adjusting the window sash or replacing the hinges. However, this can be quite a big job and requires the expertise of a skilled installer.
If your uPVC windows or doors are stuck in an closed or open position, it's crucial to have them fixed as soon as you can. This will help prevent any further damage and will aid in improving the efficiency of your home.
Most double glazing comes with a warranty, often for a period of 10 to 20 years or more. If you notice any problems it's worth looking up your warranty information and contact the company that sold them.
Many companies offer a service to drill holes in windows that have mist and then put in a plug to draw out the moisture and form an entirely new seal. This is a temporary solution and the windows are likely to mist again within six months.
This issue is typically caused by condensation between the glass panes of your uPVC windows. It's a sign the seals between the panes have been damaged and is no longer airtight, meaning that the gas insulating is no longer held in place.
Condensation

Condensation is a potential issue with double glazing. It usually appears as a mist, or small droplets of water, between the panes. It can be caused by many factors, including high humidity, low temperatures in the room or an absence of air circulation. It can be a sign of an issue with the seals, or that the insulation is not working properly.
It is possible for cold air to get in through the window, as well as warm air. This will reduce the energy efficiency. It is crucial to wash your double-glazed windows regularly so that the glass stays clear. If this is not done and the glass is not cleaned, it will become dirty and the seals may degrade over time. In some cases, you may need to engage a professional cleaner to keep your windows looking good.
Installing emergency glazier is one method to stop condensation from double-glazed windows. This will help maintain the temperature inside your home, and will also decrease the amount of water that collects on windows. You can also use a window sill that has a slope to it, as this will allow any excess water to flow away from the windows.
Contact the company who installed your windows as soon as you notice them becoming cloudy or becoming cloudy. They might be able to reseal affected areas or replace the entire glazing unit. In certain cases the repair will be covered by your warranty, so it is worth checking to see what's covered before you attempt an repair yourself.
A professional repair of your double-glazed windows repaired will save you a lot of hassle in the long run, and it will ensure that your windows are in good condition for as long as is possible. It is also a much better alternative to replacing your windows completely because this can be costly and may not offer any longer-term protection.
Water Leaks
If you see water leaking around your windows, this is a clear indication that the seals aren't as effective and needs replacing. If not checked, this could cause damage to furniture, walls and ceilings. It could also result in an increase in heating bills because the heat escapes your home through your windows.
If the leak is not too severe, it might be possible to repair it however, in more severe situations, it could be necessary to replace the entire double-glazed unit. It can be expensive, but it is better than letting water leak into.
The primary reason double glazing gets misty is because the gap between the two panes of glass allows moisture to pass through and condense in cold weather. This can lead to a variety of problems, such as draughts or condensation. It also can significantly reduce the energy efficiency.
Some companies offer to drill your existing misted up double glazing, and then inject chemicals which remove the fog & condensation from the window. While this may be a cost effective solution it's not a long-lasting one. The holes that are drilled will often become blocked with moisture after six months or so.
Another common cause of misting is that the frame of your windows moves slightly over time and this can break the seal. This can also cause condensation and draughts.
Over time, the gaskets that are used to create the seal between your double glazed window panes can shrink or break. These can be replaced easily and at a lower cost than replacement windows. This is a better choice for the environment and your wallet than purchasing windows that are brand new.
Double glazed windows can be damaged over time. Some of these issues can be fixed however it is essential to act fast to avoid wasting money. A damaged double-glazing system can not only lower the energy efficiency of your home but also be a security threat.
Damage
While it might appear like double glazing is nearly indestructible, the truth of the issue is that damage will inevitably happen over time. Fortunately, the majority of these problems are relatively simple to address. But a small number of double glazed window issues can be much more serious and should be addressed quickly and by professionals who provide a repair service and will usually give some type of warranty.
The appearance of condensation in double glazing is a major issue because it means that the seal between the two panes of glass is broken. This means that heat (which you pay 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 a sign of problems with your double glazing. The glass in your windows could be damaged due to the constant exposure to sunlight. Double glazing can also be damaged by force or blow, like lawn mowers cutting grass.
A common problem that can become more prevalent with time is the difficulty of opening and closing doors and windows. This could be because of the weather or it could mean that your frames have fallen slightly over time and are no longer fitted to the exact position they need to be.
A less important but frustrating issue that can be observed is the appearance of a dislodged air. This can be due to many reasons, but typically it is due to the malfunction of the gas cavity in between the glass. It is usually a straightforward repair that involves changing the sealed unit.
Draughty windows can be difficult to pinpoint the source of the draught A simple test can aid. If you put a matchstick or incense stick against the frame of the window and it moves, it will. This will tell you if there is a draft.