Double Glazed Windows Repairs

There are many reasons why your double-glazed windows could need repairs, from condensation between panes to drop or sagged frames. Many of these issues can be resolved.

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

Broken Panes

When a window pane breaks it loses its insulating properties and could cause a draft. If the dividing muntins also broken, it could cause water to leak between the glass panes, resulting in condensation, mildew and mould and making your home less efficient in energy use. It is best to have an expert repair a damaged window to ensure the best seal and energy efficiency.

In the beginning, you'll have to remove the broken glass. Start by placing a protective drop cloth underneath the broken window and then cutting around the perimeter of the pane with an inexpensive glass cutter (available in most hardware stores). It's a good idea to grease the cutter with a light oil before you begin. This will help prevent the glass from breaking too easily. The ball-shaped tool can be used to loosen the pieces. They should fall off relatively quickly.

Once the glass is removed, scrape any old glazing compound that has accumulated in the recess area of the frame. This will reveal the glazier's points and metal clips that hold the pane in the frame. Replace them if there is any corrosion. If the window is constructed of wood, the glazier points can be reused if they are still in good condition.

The surface of the remaining frame needs to be prepared for re-glazing. Apply a continuous strip compound to the recess using a caulking tool. Use a high-quality putty like glazier's compound that is contained in a cartridge, or a standard compound sold in a can. Allow it to dry before inserting the glass. Reinstall the metal clips, if they are attached to the frame. Install the dividers.

Condensation

Condensation is a common problem that double-glazed windows may experience particularly in wintertime. It's usually caused by too much moisture in the house, with warm air meeting cold glass. This then forms into water droplets and then collects in the corners of your windows or across the frame. It can be prevented by opening windows more frequently and enhancing ventilation with extractor fans, and using dehumidifiers in order to reduce the amount of moisture. If condensation continues to occur it is recommended to contact an expert who can identify the issue and fix or replace the windows if required.

It's also important to know that condensation on double-glazed windows can be an indication of a leaky seal. This is due to the factory applied vacuum seal may break down in time and allow cool air to move between the panes. This can cause fogging of the window, and eventually mold growth if not addressed promptly enough.

You can use a hairdryer for a quick way to get rid of excess moisture. This is a temporary solution and should be used only as a final resort. If you let the condensation sit for too long, it could lead to mould or dampness in your home. This issue should be handled by an expert.

Professionals can reseal double-glazed windows for a more permanent solution. They'll remove the affected pane of glass, clear the gap, and then pipe into hot air to evaporate any lingering moisture. During this process, they'll look for signs of damage, mould or mildew growth, and then apply a draught-proofing treatment to ensure that your windows are efficient and energy efficient again.

Draughts

Rubber seals may wear out over time and cause drafts between your two panes. It is simple to replace the gaskets which will result in an airtight seal. This will allow warm air inside your home and the colder air outside, saving you cash on your energy bills.

Misted double glazing indicates that the seals in your 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 create an airtight window. If the seal is blown it allows water vapour to pass through your home through the gap, which will cause condensation between the panes which can't be removed.

This is a straightforward issue to solve, and windows can be quickly repaired by professionals using the appropriate tools. The expert will employ an instrument designed to push in the new seals. This is usually quicker than doing it manually. These tools feature a pointed tip that can be used to push seals into corners.

In some cases an expert 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 less expensive option than replacing your double-glazed windows and will still provide you with a Draught-proofing system.

Faulty Hinges

Misted double glazing is a common problem that many people experience. It can be caused by a broken seal, handle or a crack in the glass or an issue with the mechanism or frame. It is often possible to fix this problem. This usually involves making a seal between the two glass panes. The new seal will help prevent condensation, draughts, as well as leaks.

As soon as you notice any problems, you should contact the company that sold you your windows. Make sure to put this in writing and request them to confirm that they have received your notification. Writing everything down will make it easier to resolve any disputes arise, because it is easier to prove that you did complain.

A window repair professional might be able to drill a hole in the gap between your windows to remove moisture and create a seal. However, this is generally only a temporary fix and will not stop the return of moisture. Alternatively, it may be possible to replace the glass unit, which will ensure it is watertight.

Make sure that you only try DIY fixes if your skills and knowledge are adequate. Super glue or other DIY solutions can result in more damage over the long term. It is best to seek professional help when you aren't sure what to do. You can locate an expert in your area who can provide double glazing repairs by typing your postcode into the search box on Checkatrade. All of our traders are fully checked and handle vetted, so you can trust them to provide a high-quality service.

Broken Seals

Window seals, also known as insulation gas fills, are what hold double glazed windows in place. They are susceptible to damage due to various factors, including weather conditions, age, and power washing. It is essential to recognize the signs and the best way to fix them.

If a window seal fails, humid air can seep between the two panes of glass, causing fog. It's a frequent issue and it can cause the window to appear visually disoriented. If the seal is damaged, any argon or other inert gas is lost from the glass, decreasing its insulation properties.

A broken window seal can be repaired by replacing it with the new one by an experienced glazier. However, this could be expensive and handle may not solve the fog issue completely. Certain companies offer defogging, which involves placing an air pump inside the window frame in order to remove moisture and make the glass clear. However, this method is not 100% reliable and cannot replace any inert gases, meaning that the fog can return.

A glazier is also able to replace the entire IGU (insulated glass unit) if it is beyond repair. This is typically the most cost-effective option and can be a good choice if you're looking for a long-term solution. But, it's best to choose a firm with a guarantee for replacement windows to ensure that any problems are protected. This means you can be at ease knowing that you'll get most value from your investment. You can also try to get rid of the issue by choosing an item of high-quality and following the care instructions given by the manufacturer. This will help to prolong the life of your window and decrease the need for repairs.