Notes

Why Nobody Cares About Double Glazed Repair
How to Deal With Double Glazed Repair

It's a good idea have your double-glazed windows checked frequently, particularly if you notice the frames are expanding or contracting. This will reduce the risk of draughts.

If you see condensation between the glass panes, it is possible that the seal be failing and should be replaced. The seal can be replaced to reduce condensation and save energy.

Broken or cracked panes

Double glazing is not indestructible and faults can occur which can reduce the energy efficiency of the windows and doors. Repairing double-glazing can be an simple process however, you'll require the proper tools and experience to do it properly. It is normally best to work with a professional firm to complete the task instead of attempting it yourself.

The most common issue that can affect a double-glazed window is a broken or cracked pane. This could be a result of a blow or knock on the frame from outside, or from an attempt to open a window that is stuck closed. Glass can break or crack into pieces depending on its size and the force used to break it.

If a double-glazed window is prone to cracking it can be repaired with a type of putty or a special tape. This will stop the crack from spreading or becoming worse and it will block any moisture, wind or other elements from entering the home through the cracks.

Condensation in double-glazed windows is another common problem and is often the result of a break of the window seal. It is a normal occurrence that is caused by weather and temperature changes. Before you attempt to repair your windows, you should see if they are still covered by the warranty.

This is usually covered by the company who supplied you with your double glazing, so it is important to contact them immediately and clearly explain the issue. This should be done in writing instead of by phone or text. Always keep an original copy.


If you're looking to try and fix a window that has become misty yourself, a common method is to drill through the middle of the affected window. The desiccant will absorb moisture and will help solve the problem. This is a temporary solution and it is recommended you replace your double-glazed units with new ones as soon as is possible.

Misted Panes

Double-glazed windows that mist up can be a major nuisance and cause major disruptions in your home. It is, however, fairly simple to fix the issue once you understand the root of the issue. Most of the time, the root of the issue is a problem with the seals between the window panes that allow moisture to get in. Poor installation, drainage issues or even faulty seals by the window manufacturer could cause this problem.

local double glazing repair sealed units consist of two glass panes, with an open spacer bar sandwiched between them (shown in the above image). The inner surface of the spacer bar is perforated and the spacer bars have been filled with desiccant in order to absorb moisture. The two glass panes then be bonded together and the whole unit will be filled with gas to increase its thermal efficiency.

As you can imagine, if the sealed unit fails, moisture could get between the panes and this could cause condensation and mist. This could cause heat to escape from your property, which can result in a significant amount of money lost to energy bills.

Unfortunately, fixing a misted double glazing window isn't easy and isn't something that should be attempted by anyone who doesn't have extensive knowledge of glazing and the construction industry. However, if you're prepared to take on the challenge, then it's possible to repair the misted seal by adding moisture absorbing desiccant back into the gap between the glass panes.

Bear in mind, though, that this is only a temporary solution and the condensation will likely return, and the process may need repeating. It's far more effective to replace misted glass units and it will also be more efficient and cleaner. Replacements will restore the original insulation to your home, which is not possible with a repair. If you are experiencing misted windows and condensation, we suggest you contact an experienced company that can provide double glazing. In the meantime, you can try keeping your windows as dry as you can by ensuring that they are well ventilated and cleaned regularly.

Water Leaks

Whether they are new or old, double-glazed windows should not leak. Leaking windows aren't just an inconvenience, but they could cause severe damage to your home, including mold growth and structural damage as well as higher heating and cooling expenses. Contact a professional window company as soon as you suspect a issue.

Window leaks are usually an indication of a problem with the seals that connect the panes of glass. If you notice condensation between the panes, this is a sure sign that the seal on your window has become damaged and water is leaking into the insulating gap between the glass. A little condensation is perfectly normal. However should the issue persist and is visible on your home's interior or exterior it is the right time to call a repair service.

Water accumulating at the bottom of your window frame is a common cause of leaks. This could be a sign of drainage holes that are blocked or flashing that isn't properly installed, or an unbalanced sill. It is easy to clear a clogged drain hole using a coat hanger. Improper flashing is also easy to fix by using roofing caulk to fill in the gaps around the frame. A wrong pitch could be the cause of the window sill sloping to one side. A professional window repair company can identify 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 but it is more cost-effective and efficient to hire a professional double-glazed repair service. They can bring your windows' appearance and function to what they were when they first came out. They can also replace hinges, handles and locks, if needed. Professional window repair companies will give you a guarantee on their work. You wouldn't receive this if you tried to repair windows on your own.

The difficulty of opening

If you notice that your windows are becoming more difficult to open, contact the company that sold you windows. In the majority of instances, a simple repair will resolve the issue. If the issue continues to persist it is possible to consider replacing your old windows with more modern ones. Double-glazed windows are available with the most recent features to ensure your home is secure and warm. These include slimline uPVC frames or aluminium frames that have advanced insulation that prevents heat from escaping, as well as innovative security hardware.

Another sign that your double glazing needs repairs is condensation between the glass panes. This is caused by an issue with the seals between the two panes. Inert gases are designed to escape between the panes of glass and be replaced by humid air. This keeps your windows airtight and energy efficient. If this doesn't happen, the seals could have degraded or broken in some way, which can occur in the course of time because of weather changes or other elements.

A draft from a double-glazed window could be a sign the seals are failing and cold air is coming in to your home. This could also result in higher energy bills, as your heating will have to work harder to keep the temperature of your home stable.

In some instances, a draught may be resolved by lubricating the hinges, handles, or mechanisms on your double-glazed doors or windows. However, it is important to keep in mind that this is a temporary fix and if the issue persists, then you will need to seek out the experts.

To prevent condensation, you can put in ventilation in your doors and windows for reducing condensation, such as air bricks or extractors. It is also recommended to let your double-glazed doors as well as windows to breathe, which can be achieved through trickle vents.

Website: https://www.repairmywindowsanddoors.co.uk/double-glazing-repairs-peterborough/