How to Deal With Double Glazed Repair
It's a good idea have your double-glazed windows checked regularly, especially if observe that the frames are expanding or contracting. This will reduce the risk of draughts.
If you notice condensation between the glass panes, the seal could be failing and needs to be replaced. Replacing the seal will not only reduce condensation, but also save on energy bills.
Broken or cracked Panes
Double glazing isn't indestructible and it is possible for faults to occur that can reduce the efficiency of energy-efficient windows and doors. Repairing double-glazing is an simple process, but you will require the proper tools and expertise to complete it right. It is generally recommended to get a professional complete the task, rather than attempting to do it yourself.
A cracked or broken pane is the most frequent problem with double-glazed windows. A knock or blow from outside can cause this, as can the attempt to open a stuck-closed window. Glass can break or crack into pieces depending on its size and the force that is used to break it.
You can repair double-glazed glass windows that is susceptible to cracking by using special tape or putty. This will stop the crack from spreading or becoming worse and it will block any wind, water or other elements from entering the home through the cracks.
Condensation in double-glazed windows is a different issue that is common and is usually the result of a break of the window seal. It is a natural occurrence that is caused by different temperatures and weather conditions, so it is important to check whether your windows are in warranty before you attempt to repair them.
Typically, this is covered by the company you purchased your double glazing from, so it is important to contact them quickly and clearly explain the issue. This is best written down instead of by phone or text. Always keep a copy.
If you're looking to try and repair a misted window yourself, a common method is to drill through the middle of the affected pane. The desiccant absorbs any moisture and will help solve the issue. This is a temporary solution and it is recommended you replace your double-glazed units with new ones as soon as you can.
Misty Panes

Double-glazed windows that fog up can be a real issue and cause major disruptions in your home. If you can pinpoint the issue it's fairly easy to repair. Most of the time, the root of the problem is a problem with the seals between the window panes, allowing moisture to get in. Poor installation, drainage issues or even damaged seals made by the window manufacturer can trigger this problem.
Standard sealed units consist two glass panes, sandwiched by an open spacer (shown above). The surface of the spacer bar has been perforated, and the spacer bars have been filled with desiccant in order to absorb moisture. The two glass panes are then joined and the entire unit is injected with gas to improve its thermal efficiency.
As you can see, if the seal is damaged, moisture may get between the panes causing condensation and mist. This could also result in heat escaping from your property, which can result in a significant amount of money being lost due to energy bills.
Repairing a window that has been misted is a challenging task that should not be attempted by a person who doesn't have a solid understanding in the construction and glazing industries. If you are willing to take on the challenge, it is possible to repair the misted seal of a window by introducing a moisture-absorbing desiccant in the space between the glass panels.
Remember that this is a temporary fix and the condensation could return. The process will need to be repeated. It's much more efficient to replace an affected unit. It is also more efficient and cleaner. A replacement can also restore the original insulation of your house which isn't available through repair. We recommend getting in touch with a reputable double-glazing company if you're having trouble with condensation and misty windows. While you wait, keep your windows as dry and clean as you can.
Water Leaks
No matter if they are brand new or old, double-glazed windows must not leak. Leaking windows are not only an inconvenience, but they could cause serious damage to your home such as the development of mold and structural damage as well as higher heating and cooling costs. If you suspect a leak call a reputable window repair service as soon as you can to get the issue fixed.
double glazing window repairs could be a sign that the seals between glass panes are not working correctly. If you see condensation between the panes, it's a sure sign that the window seal has been damaged and that moisture is seeping into the insulation gap between the glass. A little condensation is perfectly normal. However when the issue persists and appears on your home's exterior or interior, it is time to call in an expert repair service.
Another cause of leaks is the accumulation of water on the bottom of the frame of your window. This could be a sign of clogged drain holes, improper flashing or a sloped sill. It is simple to clear a clogged drain hole by using a coat hanger. Improper flashing is also easy to fix using roofing caulk to fill the gaps around the frame. If the window sill is sloped to one side, it could be due to an incorrect pitch. A reputable window repair company will be able to determine the root of the problem and offer a fast, cost-effective solution.
Although it is not uncommon for old UPVC windows to break or leak, it is much more cost-effective and efficient to hire an expert double-glazed repair service. They can restore your windows' appearance and functionality to how they were when they first came out. They can also replace hinges, handles and locks if necessary. Professional window repair companies will give you a guarantee for their work. You would not get this if you attempted to fix the windows yourself.
Difficulty of Opening
If you notice that your windows are becoming more difficult to open, contact the company where you purchased the windows. In the majority of cases, a simple fix can resolve the issue. If the issue persists, you may want to think about replacing your windows with more modern. Double-glazed windows are available with the most modern features to keep your home safe and warm. These include slimline uPVC frames or aluminium frames with advanced insulation that stops heat from escaping and innovative security equipment.
Condensation between the glass panes is another common sign that double glazing requires repair. This is caused by a failure in the seals between the two panes. Inert gas is supposed seep out between the glass and replace it with moist air, ensuring that your windows remain well-insulated and thermally efficient. If this isn't happening, the seals may have deteriorated or even broken, which is something that could happen in time as a result of changing weather conditions or other factors.
A draft coming from a double-glazed window can also indicate that the seals are failing and cold air is getting in to your home. This could also lead to higher energy costs since your heating system will need to work harder to keep the temperature of your home.
In certain cases, a draught can be fixed by lubricating the hinges handles, mechanisms or handles of windows or doors with double glazing. But, it is important to remember that this is temporary solution and if the issue persists, you'll need to seek out the experts.
You can also put in ventilation devices, like extractors, air bricks, or vents in your windows and doors, to help with condensation issues. It is also important to allow double-glazed doors and windows to 'breathe,' which can be achieved through trickle vents.