5 Double Glazed Windows Repairs Projects For Any Budget
Double Glazed Windows Repairs
There are many reasons why your double-glazed windows may need repairs including condensation between panes, to drop or sagged frames. Fortunately, the majority of these issues can be fixed.
If your door or window is difficult to open try oiling the hinges, the mechanism and handles. This is usually a simple, short-term fix.
Broken Panes
When a window is damaged and shattered, it loses its insulation properties and may cause drafts. If the dividing muntins also damaged, it could cause water to leak between the glass panes, resulting in condensation, mould and mildew and making your home less efficient in energy use. A window that is damaged should be repaired by a professional to ensure you get the correct seal and the optimum energy efficiency.
In the beginning, you'll have to take the broken glass off. Start by placing an inexpensive glass cutter in an appliance store beneath the broken pane. 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 end of the tool can be used to break the fragments. They should fall off quite quickly.
Scrape any old glazing compound off the recess of the frame after the glass is removed. This will reveal the glazier's points and metal clips that keep the pane in the frame. If there's any sign of corrosion, these clips should be replaced with new ones. If the window is constructed of wood the glazier points may be reused if they're still in good shape.
The remaining frame must be prepared to allow re-glazing. Using a caulking gun, apply a continuous ribbon of compound around the inner edge of the recess. Make use of a premium putty such as glazier's compounds that is contained in a cartridge or a conventional compound that is sold in a can. Let it dry before installing the glass. If the frame is made of metal clippings, these should be reinstalled too. Finally, install the dividers.
Condensation
Condensation can be a problem for double-glazed windows, particularly during winter. It's typically caused by too much humidity in the home, with warm air meeting cold glass, which turns into water droplets, and collects in the corners of your windows or across the frame. This can be prevented by opening windows more regularly and improving ventilation by installing extractor fans and running dehumidifiers to reduce moisture levels. If condensation remains a problem, it's important to call in an expert to get to the bottom of the issue and fix or replace your windows as required.
It's also important to note that condensation on windows with double glazing can be an indication of a leaky seal. This is due to the factory-applied vacuum seal may break down over time and allow cool air to flow between the panes. This can cause the window to get smudged and eventually grow mold if it is not addressed immediately.
Hairdryers can be used as a quick solution to get rid of excess moisture. However, this is just a short-term solution and should be only used as the last resort. If the condensation is left for a long time, you could be looking at mould or dampness in your home, which should be addressed by a specialist.
Professionals can seal your double-glazed window for a better, more durable solution. They will remove the affected glass pane and clean the gap. They will then pipe hot air into the area to evaporate any moisture. During this process, they'll also check for the presence of mildew, mold or damage growth and apply an draught-proofing procedure to ensure that your windows are completely operational and energy efficient again.

Draughts
As time goes by the rubber seals around the edges of your glass insulated can fall apart and cause a draught to form in the space between the two panes. It is simple to replace the gaskets, which will result in an airtight seal. This will keep warm air inside your home, and cooler air out. You will save money on your energy bill.
Misted double glazing is a sign that the seals in your sealed unit (sometimes called a DGU) have been blown. The unit is comprised of two glass panes filled with argon separated by a spacer to create an airtight window. If the seal has blown, water vapour will enter your space through the gap. This can result in condensation between the glass panes which is not able to be removed.
This is a simple issue to fix and windows can be swiftly replaced by specialists with the appropriate tools. The specialist will use a tool designed to push the new seals in place and this is normally quicker than doing it manually. The tools also have a pointed tip which is useful for pushing seals into the corners.
A professional could be able to seal your windows' by drilling a small gap into the window and then adding a desiccant or putty. This can be an economical alternative to replacements, and will offer a reliable draught-proofing solution for your double-glazed windows.
Faulty Hinges
Many people have encountered misted double-glazing. It could be caused by cracked or broken glass or frame or even a damaged seal. It is often possible to resolve this issue. Normally, this involves making a new seal between the two glass panes. The new seal will help prevent condensation, draughts, and leaks.
If you spot any issues, you must contact the company that sold you your windows. Make sure to put this in writing, and ask them to confirm that they've received your notification. Having everything in written form will help later on should any disputes arise, as it is easier to prove that you actually complained.
A window repair expert could drill a hole between your windows to remove moisture and form an airtight seal. However, this is generally only temporary and will not prevent the return of moisture. Alternatively, it may be possible to replace the glass unit, which will ensure it is watertight.
Be aware that you should only try DIY fixes if your skills and knowledge are adequate. Super glue or other DIY solutions can cause more damage over the long term. 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 repair by entering your postcode into the search box on Checkatrade. Our tradespeople have been thoroughly vetted and checked to ensure you are sure they will provide a high-quality service.
Broken Seals
Window seals, also known as gas fills, keep double-glazed windows in place. They are susceptible to damage due to many elements, including weather conditions, age, and power washing. It is important to know the symptoms and the best way to repair them.
When a window seal fails it allows humidity to get into the two glass panes and create fog. It's a frequent issue and can cause the window to look visually disoriented. Once the seal fails, any argon or other inert gas will be removed from the glass, diminishing its insulating properties.
A professional glazier can repair a damaged window seal with a new one. This can be costly and may not solve the fog issue. Some companies offer defogging which involves placing an air pump inside the window frame to remove moisture and clear the glass. This method is not foolproof, and it doesn't replace inert gasses, so the fog may be re-created.
If the IGU (insulated unit) is beyond repair, a glazier can replace it. This is the most cost-effective solution and is a great choice if you are seeking a long-term solution. But, it's best to choose a firm that has a warranty on replacement windows to ensure that any problems are protected. This means that you can be at ease knowing that you'll get most out of your investment. You can also try to avoid this issue by choosing a high-quality window and following the manufacturer's maintenance instructions. This will prolong the lifespan of the window and reduce the number of repairs.