Why We Do We Love Double Glazed Repair (And You Should Too!) How to Deal With Double Glazed Repair

It's a good idea to have your double-glazed windows checked regularly, especially if observe that the frames are expanding or contracting. This can reduce the chance of drafts.

If you notice condensation appearing between the glass panes, the seal may be failing and must be replaced. Replacing the seal will not only help to reduce condensation but will also reduce energy costs.

Broken or cracked panes

Double glazing is not impervious to damage and faults can occur which can reduce the efficiency of energy-efficient windows and doors. Repairing double-glazing is an easy process however, you'll require the right tools and knowledge to do it correctly. It is normally best to use a professional firm to complete the task rather than attempting it yourself.

A broken or cracked window is the most frequent problem for double-glazed windows. A knock or a blow from the outside can trigger this, as can the attempt to open a stuck-closed window. Glass can crack or break into pieces depending on its size and the force that is used to break it.

You can repair double-glazed glass that is prone to cracking with the help of special tape or putty. This will stop the crack from extending or getting worse. 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 often caused by a failure of the window seal. It is a normal occurrence that occurs due to weather and temperature changes. Before you attempt to repair your windows, make sure to check if they're covered by the warranty.

This is usually covered by the company that sold you your double glazing, so it's important to contact them quickly and explain the problem clearly. It is best to address this in writing, rather than by phone or text message, and always keep a copy of your correspondence.

Drilling a hole in the center of a misted pane is a common way to repair it yourself. The desiccant will absorb any moisture and will help solve the issue. This is a temporary solution and it is recommended that you replace your double-glazed units with new ones as soon as you can.

Misty Panes

When double glazed windows start misting up it can be a major issue and cause a significant disruption to your home. It is, however, fairly easy to fix the issue once you know the root of the issue. Most of the time, the problem is caused by a flaw in the seals that separate your window panes. This allows moisture be able to get. This can be caused by poor installation, drainage problems or even seals that are defective from the window manufacturer.

Standard sealed units comprise of two glass panes with an open spacer bar sandwiched between them (shown in the above image). The face of the spacer bar is perforated and the bars that are used as spacers are filled with a desiccant that is used to absorb any moisture that gets into the unit. The two glass panes will be sealed together and the whole unit will be injected with gas to increase its thermal efficiency.

As you can imagine, if the sealed unit fails, then moisture could get between the panes and this can cause condensation and even mist. This will also lead to the heat from your home being lost which could lead to significant amounts of money lost through energy bills.

Repairing a window that has been misted is a challenging task that shouldn't be attempted by someone who doesn't have a solid understanding in the construction and glazing industries. However, if you're willing to take on the challenge then it is possible to repair the misted seal by putting moisture-absorbing desiccant back into the gap between the glass panes.

Be aware that this is a temporary fix, and the condensation might occur again. The process will have to be repeated. It's much more efficient to replace a misted glass unit and it will also be much cleaner and quicker. A replacement will also help restore the original insulation of your house which isn't available in repair. If you are experiencing misted windows or condensation, we suggest contacting an experienced company that can provide double glazing. In the meantime, consider keeping your windows as dry as possible by ensuring they're well ventilated and cleaned regularly.

Water Leaks

Whether they are new or old, double glazed windows should not leak. Leaking windows are not only an inconvenience, but they could cause serious damage to your home such as mold growth, structural damage and increased heating and cooling costs. If you suspect a leak you should contact a professional window repair service as soon as you can in order to bring the problem under control.

Window leaks could be an indication that the seals between glass panes aren't functioning properly. If you notice condensation between the glass panes, it is a sign that the seal between the two panes is deteriorating. Moisture is now flowing through the insulating space between the two panes. A small amount of condensation is normal. However, if the problem persists and appears on the exterior or interior of your home, it is time to call in a repair service.

repair double glazing collecting at the bottom of the window frame is a typical cause of leaks. This could be an indication of drainage holes that are blocked or flashing that isn't properly installed, or a sloped sill. A clogged drainage hole is simple to fix using a coat hanger made of wire to clean out the gunk. With roofing caulk, it is easy to fix improper flashing. A faulty pitch could be the cause of an inclined window sill to one side. A professional window repair service will determine the root of the issue and provide an affordable, fast solution.

It is not uncommon for UPVC windows that are older to break or leak. However it is much more cost-effective and efficient to employ an expert to repair your double glazing. They can bring your windows' appearance and function to the way they were when they first were released. They can also replace hinges, handles and locks if necessary. Professional window repair companies will offer you a guarantee on their work. You would not get this if you were to fix the windows yourself.

It is difficult to open

If you notice that your windows are becoming harder to open, you should contact the company where you purchased windows. In most instances, a simple repair will resolve the issue. If the issue persists then you should look at replacing your windows with more modern. New double glazed windows offer the latest technology to keep your home warm and secure, such as slimline uPVC or aluminium frames and advanced insulation to prevent heat from escaping, and innovative security equipment to keep out intruders.


Another sign that your double glazing is in need of repairs is condensation that forms between the panes of glass. This is due to an issue with the seals between the two panes. Inert gas is supposed to seep out between the glass and replace it with moist air, ensuring that your windows stay in a thermally efficient and airtight state. If this isn't happening the seals may have deteriorated or simply broken down in some way, which can occur in the course of time because of changing weather conditions or other factors.

A draft coming from your double-glazed window also a common sign that the seals have failed, meaning that cold air is getting into your home. This can lead to more energy costs as your heating system will have to work more to maintain the temperature in your home.

In some cases, a draught can be fixed by lubricating the hinges, handles or mechanisms of windows or doors that are double-glazed. It is important to remember that this is only a temporary solution and you will be required to consult with a professional when the issue persists.

You can also install ventilation systems, such as air bricks, extractors or vents in your windows and doors to alleviate the issue of condensation. You should also allow double-glazed doors and windows to 'breathe,' which can be achieved with trickle vents.