Double Glazed Windows Repairs

There are many reasons why your double glazed windows might need repairs including condensation between panes, to draughts and dropped or sagged frames. Fortunately, a majority of problems can be addressed.

If your window or door is difficult to open try oiling the hinges, the mechanism and handles. This is a simple, cheap solution.

Broken Panes

If a window pane is damaged it loses its insulation properties and could cause draft. If the dividing muntins also broken, it could cause moisture to leak between the glass panes, leading to condensation, mold and mildew and making your home less energy efficient. A broken window is best repaired by a professional to ensure you get a perfect seal and the optimum energy efficiency.

First, you will need to take out any broken glass. Begin by placing a protective drop cloth underneath the window that has been broken and scoring around the perimeter of the pane with an inexpensive glass cutter (available in a majority of hardware stores). It's worth lubricating this tool's cutter with a light oil before you begin. This will stop the glass from breaking too easily. The ball-shaped tip of the tool can be used to loosen the pieces. They should fall off quite quickly.

Once the glass is removed, scrape away any old glazing compound from the recess of the frame. This will reveal the glazier's clips and pins that keep the glass in place. If there's evidence of corrosion, these should be replaced with new ones. If the window is made of wood the glazier points can be reused if still intact.

You'll then need to prepare the surface of the remaining frame for reglazing. Apply a continuous strip compound to the recess using a caulking tool. Use a high-quality putty, such as glazier’s compound in a cartridge. Allow it to dry prior to re-inserting the glass. If the frame has metal clippings, they should be reinstalled too. Install the dividers.

Condensation

Condensation can be a problem for double-glazed windows, especially during the winter. It's usually caused by too much humidity in the home, with warm air meeting cold glass, which condenses into water droplets and then collects in the corners of your windows or across the frame. This can be prevented by opening windows more regularly and enhancing ventilation with extractor fans and running dehumidifiers to reduce moisture levels. If condensation continues to occur you should contact an expert who can identify the problem and repair or replace the windows if necessary.

It's also important to know that condensation on a double-glazed window can actually be an indication of a failing seal. This is because the vacuum seal that was applied by the manufacturer will break down over time and allow cool air to move between the panes. This can lead to fogging of the window and eventually, mold growth if not addressed quickly enough.

As a quick fix to condensation, try using hair dryers to eliminate the excess moisture. However, this is only a short-term solution and should be used only as the last option. If the condensation is left for a long time it may be experiencing mould or dampness within your home, which must be dealt with by a professional.

As a long-term solution, you can have your double-glazed windows repaired by professionals. They will remove the affected glass pane and clean the gap. They'll then pipe hot air into the gap to evaporate any moisture. In this process, they'll also look for signs of damage, mould or mildew growth and apply an draught-proofing procedure to ensure that your windows are fully functional and energy efficient once again.

Draughts

Rubber seals can wear out over time and cause drafts between the two panes. It is an easy fix to replace the gaskets which will result in an airtight seal. This will keep warm air in your home, and the colder air out, thereby saving you money on your energy bills.

Misted double glazing is a sign that the seals of the sealed unit (sometimes called a DGU) have been blown. The unit is composed of two panes of argon-filled glass separated by a spacer to form an airtight window. If the seal has blown the water vapour will get into your space through the gap. This will create condensation between the glass panes, which can't be sucked out.

This is a simple problem to fix, and windows can be quickly repaired by professionals using the appropriate tools. The professional will employ tools designed to push the new seals into position and it is usually faster than attempting to do it by hand. The tools have a pointed tip that can be used to push seals into corners.

In some cases professionals may be able to 'reseal your windows' by drilling a small opening into the window and adding a special desiccant material or putty. This is a less expensive option than replacing your double-glazed windows and will still provide you with a reliable air-tight system for draughtproofing.

Faulty Hinges

Misted double glazing is a typical problem that many people encounter. It could be caused by a broken or cracked glass frame or even a damaged seal. The good news is that it is often fixed. Typically, this is done by creating a new seal between two panes of glass. The new seal will prevent condensation, draughts, and leaks.

As soon as you notice any issues, you should contact the company that sold you your windows. Make sure you do this in writing and ask them to confirm that they have received your message. If there is a dispute, having everything in writing will help you prove your claim.

In certain situations, a window repair specialist will cut the hole in your windows to draw out moisture and make the new seal. However, this is generally only temporary and will not prevent the moisture from returning. In addition, it might be possible to replace the glass unit, which will ensure it is watertight.

Be aware that you should only attempt DIY fixes if your skills and knowledge are sufficient. Super glue or other DIY solutions can cause more long-term damage. If you are unsure of what to do, it is always recommended to seek professional advice. You can find an expert in your area who can provide double glazing repairs by entering your postcode into the search box on Checkatrade. Our tradespeople have been thoroughly vetted and screened, so you can be sure that they will offer a high-quality service.

Broken Seals

Window seals, or insulation gas fills, are what hold double-glazed windows in place. A variety of factors can cause them to break, such as age, weather conditions and power washing. It's crucial to be aware of what the signs are and how to fix them.

When a window seal fails humid air can get between the two panes glass, creating fog. This is a common problem that can cause the window appear to be distorted. Once the seal fails the argon or any other inert gas is lost from the glass, diminishing its insulating properties.

A professional glazier can replace a broken window seal with a brand new one. This can be expensive and may not solve the fog issue. Certain companies offer defogging services that involve putting a special vacuum pump in the window frame to remove the moisture and make the glass clear. This method is not foolproof, and it does not replace the inert gasses, meaning that fog could be re-created.

If the IGU (insulated unit) is beyond repair, a glazier may replace it. This is usually the most cost-effective solution and is a great option when you're seeking an option that lasts for a long time. It is best website to choose a company who offers warranties on replacement windows. This will ensure that any problems you may have are covered. This means you can be sure that you'll get maximum value for your investment. You can also avoid the problem by selecting a high-quality product and following the care instructions given by the manufacturer. This will prolong the lifespan of the window and cut down the number of repairs.