Double Glazed Windows Repairs
There are many reasons why your double glazed windows might need repairs such as condensation between panes, to dropping or sagging frames. The majority of these issues are fixable.
Try to lubricate the hinges, handles and mechanism of your window or door in case it is hard to open. This is usually a simple temporary fix.
Broken Panes
When a window is broken it loses its insulation and could cause draft. If the dividing muntins are broken it can cause water to leak through the glass panes, leading to condensation, mould and mildew and making your home less efficient in energy use. It is best to have a professional repair a broken window to ensure the best seal and energy efficiency.
First, you will need to remove any broken glass. Begin by putting a drop cloth underneath the broken window, and then cutting around the perimeter of the pane using an inexpensive glass cutter (available at most hardware stores). Before window repairs start, lubricate the cutter of this tool using a light oil. This will prevent the glass from shattering too easily. The ball-shaped tip of the tool can be used to break the fragments. They should fall off fairly quickly.
Scrape any old glazing compound out of the frame's recess after the glass is removed. This will expose the metal clips and glazier's pins that hold the glass in the frame. Replace them if there is any corrosion. If the window is made of wood, the glazier's points can be re-used if they're still intact.
The next step is to prepare the surface of the remaining frame to be re-glazed. Apply a continuous strip compound to the recess using a caulking tool. Use a high quality putty, such as a glazier’s compound in a cartridge. Allow it to dry before re-inserting the glass. Reinstall the metal clips, if they are on the frame. Finally, install the dividers.
Condensation
Condensation can cause problems for double-glazed windows, especially in winter. It's usually caused by excessive moisture in the house where warm air collides with cold glass, which then turns into water droplets, and settles in the corners of your windows or across the frame. You can stop this from happening by opening your windows more frequently, improving ventilation with extractor fans, and using dehumidifiers. If condensation persists it is recommended to contact an expert who will be able to pinpoint the problem and repair or replace the windows if needed.
Condensation on a double-glazed glass window is a sign the seal has failed. This is because the factory applied vacuum seal may become degraded over time, allowing cool air to make its way between the panes. This can cause the window to get smudged and then develop mold if not addressed promptly.
Hairdryers can be used for a quick way to get rid of excess moisture. But, this is only an interim solution and should be used as the last resort. If the condensation is left for too long it could be looking at mould or dampness within your home, which should be addressed by a specialist.
Professionals can reseal double-glazed windows for a better, more durable solution. They'll remove the damaged glass pane and clean the gap. They'll then pipe hot air into the space to dry out any moisture. During this process, they'll also examine for any damage, mildew or mould growth, and then apply a draught-proofing process to ensure your windows are completely functional and energy efficient once again.
Draughts
As time goes by the rubber seals around the edges of your insulated glass can fall apart and create a draught in space between the two panes. This is typically a simple problem that can be solved by replacing the gaskets, and this will result in a sturdy and airtight seal once again. This will keep warm air inside your home, and colder air outside. You can reduce your energy bills.
Misted double glazing indicates that the seals inside the sealed unit (sometimes called a DGU) have blown. The unit is comprised of two panes of glass separated by the spacer bar to create an insulating space. It is then filled with gas, such as argon, to make the window airtight. If the seal has been blown water vapour can enter your home through the gap. This can cause condensation between the glass panes that is not able to be removed.
This is a simple problem to fix and windows can be swiftly repaired by professionals using the appropriate tools. The professional will employ an instrument designed to push the new seals into place and is generally faster than trying to do it by hand. These tools have an edge that can be used to push the seals into corners.
In certain cases professionals might be able to "reseal your windows' by drilling a small hole into the window and adding a special desiccant material or putty. This could be more cost-effective than replacements, and will offer a reliable protection against draughts for your double-glazed windows.
Faulty Hinges
Many people have had misted double glazing. It may be caused by a broken seal or crack in the glass, or a problem with the frame or mechanism. The good news is that this is often solved. Typically, this is done by making a new seal between the two glass panes. The new seal will stop leaks, condensation and draughts from happening.
If you discover any issues, you should contact the company that sold you the windows. Be sure to do this in writing and request them to confirm that they've received your message. Writing everything down will help later on should any disputes arise, as it is easier to prove that you did complain.
In some cases, a window repair specialist will cut the hole in your windows to draw moisture out and create an entirely new seal. This is a temporary fix and will not stop the return of moisture. In addition, it might be possible to replace the glass unit itself which will ensure it is watertight.
Be aware that you should only attempt DIY fixes if your skills and knowledge are adequate. Utilizing super glue or any other kind of DIY solution can cause more damage in the long run. It is best to seek out professional assistance in case you are unsure of what to do. Inputting your postcode into the search box on Checkatrade will allow you to find a local tradesperson that offers double glazing repair. All of our tradespeople have been thoroughly vetted and screened and you can be sure that they will offer a top-quality service.
Broken Seals
Window seals, or insulation gas fills, are what hold double-glazed windows in place. Many factors can cause them to break, such as age, weather conditions and power washing, so it's crucial to be aware of what the symptoms are and what to do 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 also cause the window to look visually disoriented. Once the seal fails, any argon or other inert gas is removed from the glass, reducing its insulating properties.
A broken window seal can be fixed by replacing it with a an entirely new one by a professional glazier. This can be expensive and may not solve the fog issue. Some companies offer defogging which involves putting an air-pump inside the window frame in order to eliminate moisture and clear the glass. This method isn't foolproof, and it doesn't replace inert gasses, meaning that fog can come back.
If the IGU (insulated unit) is damaged beyond repair, a glazier may replace it. This is usually the most cost-effective solution and is a great option in the event you're looking for an option that lasts for a long time. It is recommended to choose a company that has a warranty on replacement windows to ensure that any issues are protected. You can be certain that your investment will provide the best results. Alternately, you can attempt to avoid this issue by choosing a high-quality window and following the manufacturer's care instructions. This will extend the life of the window and decrease the number of repairs.