energy efficiency

Why All The Fuss? Repair Double Glazing Window?

7 min read

How to Repair a Double Glazing Window

Repairs to double glazing are best left to the experts, since they require very specific tools. Professional repairs will also be backed by a warranty that you can’t get from DIY.

Common issues include broken handles or locks that don’t open easily, discolored UPVC frames and misting between the glass panes. It’s time to call an expert in double glazing if you notice any of these issues.

Broken Glass

If a window pane breaks it is crucial to repair it as soon as possible. This will prevent the crack from forming the form of a spider’s web, and will keep cold, water and other debris out of the home. Many times, homeowners can repair the cracks without having replace the entire window.

To begin, the broken glass must be removed from the frame. This can be accomplished by hand with the help of a putty knife, or any other tools for deglazing. When dealing with broken glass, it is advised to wear gloves and eye protection. After the glass has been removed, it must be stored in a secure area prior to disposal.

After removal of the old sealant and the glazing points, the frame needs to be thoroughly cleaned with a wire bristle and damp cloth. It is then an ideal idea to make use of a hair dryer or heat gun to soften the remaining sealant and glazing which makes it easier to take off. After cleaning the frame it is recommended to apply a small amount linseed to the rabbets in which the glass will be placed to ensure that the glass sticks strongly.

Then, cut the glass to the right size to ensure it fits into the frame. If the gap is very large, you can use a piece glass repair film to fill in the gap and hold the glass. If the gap is less it is possible to apply a piece of clear tape or concealing film on both sides of it to stop it from expanding.

Once the glass is cut to size, it can be inserted into the frame empty and secured with glazing or putty. It is then a good idea touch up any paint that may be needed on the frame. If the glass has a wood frame around it, you should remove the pieces prior to installing the new glass. They may be damaged in the process of removing the old window and replacing it.


Condensation is a frequent problem with double glazing. If condensation occurs, you should air-condition the room as frequently as possible, especially during periods of high humidity. This will reduce condensation. A dehumidifier will also be beneficial. If you are unable to control the condensation, you should seek out a professional as quickly as you can to repair your windows. The accumulation of condensation could cause black mold, which poses very dangerous to your health.

If you don’t repair your double-glazed windows frames, they can become damaged or deteriorate. The insulating gap could also be compromised. This will allow cold air to enter your home, which will impact the thermal efficiency of the unit.

It is recommended to contact the company that installed your double glazing and ask whether they provide warranty service. They may be able to repair or replace your windows for free, particularly when they were bought recently. It is also worth contacting them to find out whether they are able to provide advice and guidance on how to prevent condensation in the future.

Use a non-abrasive material such as cerium dioxide or iron oxide that you can apply using a cloth. You should then clean the window’s surface until it is dry.

Another option is to drill tiny holes into your double-glazed windows and then putting the desiccant inside. This will help to absorb any moisture that has accumulated between the glass panes. This is a quick solution. However it is important to keep in mind that the condensation should go away after the hole has been sealed.

Professionals can usually resolve the issue of condensation by sealing the draught or replacing the seal on the inside of the window. It is possible to replace the damaged seal, however in some cases they may recommend replacing the entire window. If there is a substantial amount of condensation on the outside of the window they might recommend replacing the whole frame.


Double glazing is an investment that will pay back in the long run. It will keep your home warm and block out external noise. It also improves your energy efficiency, thereby saving your money on heating costs. If your double-glazed windows begin to fog, you should act immediately to stop further damage.

The misting is an indication that the seal has failed between the two panes, causing moisture between the windows. This is a problem that can be a challenge to solve. The best solution is to call an experienced window installer and have the double glazed sealed unit replaced.

To prevent the formation of condensation on your double-glazed windows, it’s recommended that you clean them regularly. This will help keep them in good shape and prolong their lifespan. To get the best results, repairs it’s a good idea to use a vacuum cleaner with a brush attachment. concentrate on areas that are prone to accumulating dirt.

It is possible to maintain the appearance of your windows by having them professionally cleaned. It will also prevent accumulation of grime which could cause the seals to break down and let moisture in. Alternately, you can attempt to eliminate the fog by yourself using a spray bottle containing an anti-fog spray. But, this approach can be lengthy and requires drilling holes into the double-glazing window. It’s not recommended unless you’re a competent DIYer.

If you have double-glazed windows that are still under warranty, call the installers and request an exchange. In many cases the company can repair or replace the sealed units and provide a warranty on the new windows.

Blown double-glazed windows happen when the seal between the two panes of double glazing breaks down, causing cold air to get in and warm air to exit. This leaves the spacer bar inside the glass filled with condensation that eventually forms, resulting in a misted appearance. While it’s possible to repair double-glazed windows that have been blown by replacing the glass unit, this does not solve the condensation that is already within the window.

Broken Frame

You’ll have to replace the frame if it’s damaged. The best way to do this is to locate a local supplier of glazing. They will sell new frames at a fair price and then install them swiftly. They can also help with any questions you might have. They can also provide advice on the best window doctor for your home.

The first step is to take the window pane that is currently in the frame. This task can be done by hand if you are wearing gloves and take your time to remove each piece of glass. This will stop cracks from spreading even more. The glass should be placed in a box or another container that is suitable for safe disposal.

Then, you’ll need to take off any old putty holding the glass in position. You can either chisel it out or use a heat gun on it to soften it. Once the putty is gone then you can take out any nails and clips in the frame. You can then clean the wood with a wire brush until it’s free of dirt and paint.

After the wood is cleaned, sanded and painted with a sealer that protects it, you can begin to reassemble your double-glazed window frame. It’s a good idea to employ a caulk gun to apply a thin layer of silicone sealant on the frame’s edges both inside and outside. This will keep the elements out and prevent moisture build up, which could cause rot and damage the frames.

Once the caulk has been sprayed after which you can begin to fit the glass into the frame. The glass points are metal triangular triangles that keep the glass in place. They must be inserted into the frame and then pressed with a firm force against the glass or putty so that they won’t move. You can then apply more glaziers compound to the glass and frame. Allow it to dry before painting. You should do this to match your other windows. You’ll need to replace any molding or trim taken off when the frame was taken down.

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