Why Double Glazed Windows Repairs Is The Right Choice For You?

7 min read

Double Glazed Windows Repairs

There are many reasons why your double-glazed windows could need repairs such as condensation between panes to draughts and dropped or sagged frames. Thankfully, most of problems can be addressed.

If your window or door is difficult to open, consider oiling the mechanism, hinges and handles. This is usually a cheap temporary fix.

Broken Panes

If a window pane is broken and shattered, it loses its insulation properties and could cause draft. If the muntins that separate the glass panes are broken, moisture can be leaking between them, causing condensation, mould or mildew. This can make your home less energy-efficient. A damaged window should be repaired by a professional to ensure you get a perfect seal and optimum energy efficiency.

First, you’ll need to remove the broken glass. Begin by placing a cheap glass cutter from an hardware store underneath the broken pane. It’s recommended to lubricate the cutter with a light oil before you begin. This will help prevent the glass from breaking too easily. Then, you can make use of the tool’s ball-shaped tip to loosen the fragments and the glass should break off fairly quickly.

Scrape any old glazing compound off the recess of the frame once the glass is removed. This will expose the glazier’s clips and pins that hold the glass in the frame. If there’s any indication of corrosion, these clips should be replaced with new ones. If the window is constructed of wood, the glazier points can be reused if they’re still in good condition.

The remaining frame needs to be prepared to allow the re-glazing. Using a caulking gun, apply a continuous strip of compound along the inside edge of the recess. Use a high-quality putty such as a Glazier’s compound in a cartridge. It should dry before installing the glass. Reinstall the metal clips if they are on the frame. Finally, install the dividers.


Condensation is one of the most common issues that double-glazed windows can experience particularly in winter months. This is usually caused by excessive moisture levels within your home. Warm air is absorbed by cold glass and condenses to droplets of water. These droplets then accumulate in the corners and frame of the window. This can be avoided by opening windows more frequently, improving ventilation through extractor fans, and using dehumidifiers to reduce moisture levels. If condensation is still an issue, it’s best to contact a professional to get to the root of the issue and repair or replace your windows as necessary.

Condensation on a double-glazed glass window is a sign that the seal has failed. This is because the factory-applied vacuum seal will be damaged over time and allow cool air to flow between the panes. This could cause the window to fog up and eventually grow mold if it’s not addressed immediately.

For a quick fix to condensation, you can try using hair dryers to dry the excess moisture. This is only a temporary solution and should be used only as a final option. If the condensation is allowed to sit for too long it could be looking at mould or dampness in your home, which needs to be addressed by a professional.

Professionals can reseal double-glazed windows to provide a longer-lasting solution. They’ll take off the affected glass pane and clean the gap. They will then pipe hot air into the area to dry out any moisture. During the process, they’ll check for damage, mildew or mould growth, and then apply a draught-proofing treatment to ensure that your windows are fully functional and energy efficient once again.


As time passes, the rubber seals around the edges of your glass are likely to be damaged and create a draught in the space between the two panes. It’s an easy fix to replace the gaskets, that will form an airtight seal. This will keep warm air inside your home, and colder air outside. You’ll save money on your energy bill.

Misted double glazing is a sign that the seals of the sealed unit (sometimes called a DGU) have blown. The unit is made up of two glass panes filled with argon separated by a spacer, creating an airtight window. If the seal is blown it will allow water vapour to enter your room through the gap, causing condensation between the panes that is not able to be cleaned off.

Fortunately, this is an easy issue to fix and windows can be replaced quickly by specialists with the right tools and know how to do it right. The professional will employ an instrument designed to push in the new seals. This is usually quicker than doing it manually. The tools also have a pointed end that can be helpful to push the seals into the corners.

In some cases professionals may be able to ‘reseal’ your windows by drilling a small hole into the window and adding an adsorbent material or putty. This is a cheaper solution than replacing your double glazing and will still provide you with an effective draught proofing system.

Faulty Hinges

Misted double glazing is a common problem that many people encounter. It can be caused by a broken or cracked glass frame or even a damaged seal. It is possible to correct this issue. This typically involves creating a seal between two glass panes. The new seal will prevent condensation, draughts, and leaks from occurring.

You should contact the company from whom you purchased your windows, and inform them of any issues as soon as you notice them. You should notify the company in writing and request confirmation that they received your message. If there is a dispute being resolved, writing everything down will help you prove your claim.

In some cases, a window repair specialist may be able to drill a hole in your windows to draw moisture out and double glazing create the new seal. This is a temporary fix that won’t stop the return of moisture. Alternatively, it may be possible to replace the glass unit itself, to ensure that it is watertight.

It is crucial to remember that you should only try DIY fixes when you have the skills and knowledge necessary to make the attempt. Super glue or other DIY solutions could cause more long-term damage. It is best to seek out professional assistance in case you are unsure of what to do. You can find a local tradesperson who offers double glazing repairs by entering your postcode in the search box on Checkatrade. Our tradespeople have been thoroughly vetted and Double glazing screened to ensure you are sure they will provide a top-quality service.

Broken Seals

Window seals, also known as insulation gas fills, keep double-glazed windows in place. They can be damaged by various factors, such as weather conditions, age, and power washing. It is essential to be aware of the signs and the best way to repair them.

When a window seal breaks it allows humidity to get into the two glass panes and create fog. It’s a common problem, and it can also cause the window to appear visually disoriented. If the seal fails, argon and other inert gases are removed from the window, further diminishing the glass’s insulation capabilities.

A damaged window seal can be repaired by having it replaced with a new one by an experienced glazier. This can be expensive and may not solve the fog issue. Some companies offer defogging, which involves putting a vacuum pump inside the upvc window repairs frame to remove moisture and make the glass clear. However, this method is not foolproof and doesn’t replace any inert gases, so the fog may return.

A glazier is also able to replace the entire IGU (insulated glass unit) if it is beyond repair. This is the most cost-effective method and is a good choice if you are looking for a long term solution. It is recommended to choose an option that provides warranties on replacement windows. This will ensure that any issues you might face are covered. You can be assured that your investment will yield the best results. You can also try to avoid the problem by selecting an item of high-quality and following the care instructions that are provided by the manufacturer. This will prolong the lifespan of the window and cut down the amount of repairs.

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