How to Repair Double Glazed Windows
Typically, double glazing comes with a guarantee of either 10 or 20 years. If your double-glazed windows are showing signs of ageing you may be eligible to have them fixed under warranty.
Double glazed window repair involves re-sealing your existing glass unit. Misting is a clear sign that the seal has failed and you need to have it fixed.
Damaged Glass
Double pane windows rely on an airtight seal to perform correctly. Condensation between glass plates is a typical indication of a failing seal. While condensation between glass is not a serious problem and can be dealt with, it's typically an indication that the glazing unit needs to be replaced. If you have a double-glazed window that is old, it might be necessary to replace both the glass as well as the frame. If your frame is in good shape however, you can usually save money by replacing just the glazing.
Glass is brittle, and it's not uncommon for double-pane windows to crack as time passes. If the cracks were not caused by mechanical damage, or a sudden impact on the window they can be fixed by using epoxy and elbow grease. Begin by cleaning the cracked area with a damp cotton rag and then apply epoxy to the crack, according to the instructions of the manufacturer. Let the epoxy completely dry before applying paint and sanding to the repaired area.
It's also possible to prevent cracks from spreading with an easy strip of masking tape. One strip of masking tape on each side of the crack ought to be sufficient to prevent cracks that appear superficial from spreading, for instance stress-cracks that are caused by low temperatures. If you notice more severe cracks in your glass that are already present, it's best to contact a professional for the repair.
It is dangerous and difficult to replace a single pane in double-paned windows. Double-pane windows are made as a whole unit and sealed in the factory with inert gas, which means it would be impossible to remove the glass without causing damage to the entire window. If you're planning to replace the glazing in your double-pane windows, make sure you choose a reputable brand with a long-lasting warranty.
You can also use newspaper to protect the window frame prior to when you remove the sash, or replace any broken glass. This will help protect you from any sharp shards that might fall in the process as well as to prevent any damage to the trim of your home or molding.
Condensation Build-Up
It's important to understand that condensation in the windows can be normal. It's caused by a difference between the temperature of air and humidity levels, which causes water vapour in the air to condense when it touches cold impenetrable surfaces such as windows. This is generally a good thing in winter, as it helps prevent the loss of heat.
If your windows appear cloudy and have a film of water on them, you must seek out a professional glazier. This is a sign that the 'air gap seal between the two glass panes has started to degrade and is letting moisture into the window.
You can stop this by using dehumidifiers, improving ventilation, or by applying de-icing agents. Alternatively, there are several specialist companies who will fix condensation build-up in double-glazed windows by drilling holes in the window unit and pumping or injecting a specific desiccant to eliminate the excess moisture. This is a more complex procedure that requires the unit to be removed from the frame, allowing access to each pane of glass, cleaning them thoroughly and then refilling with desiccant before sealing them up. This is typically more expensive, however it's worth checking that any company you use is fully insured and is registered with FENSA.
Remember that tampering your double-glazed windows will end any warranties. If you have a guarantee on your windows, it's recommended to let the manufacturer know of any issues that arise since they will be accountable for the replacement of units covered under warranty. It is best to consult an expert prior to undertaking any DIY repairs. This is particularly applicable to older units, because they're more likely than modern ones to fail. If this happens, it's probably recommended to replace the entire glazing panel. This way, you'll have brand-new windows that will last for many years.
Scratches
It's not unusual for double glazed windows to be affected by scratches on their surfaces. This can be due environmental factors, or the way the window was put in place.
Fortunately, the majority of these scratches are superficial and can be repaired by a few do-it-yourself remedies. If your windows are damaged to the point that you can feel them with your fingernail it is recommended to seek help from a professional so that the glass surface is restored to its original form.
These scratches are caused by objects like tree branches, pet nails, and cleaning materials that are abrasive scratch the glass of your windows. These scratches are usually removed with non-abrasive solutions like iron oxide or cerium dioxide polishes. You'll require these products until the scratch disappears.
Scratches can also be caused by sanding wood trim next to your windows and may occur during construction work. They are difficult to repair, but a small amount of baking soda mixed with water can help smooth the area that has been buffed and remove any remaining scratches.
For more extensive scratches, you can use polishing metal to smooth the area and remove them. Add a small amount to a cotton ball, or a clean microfibre towel, and gently rub the area with a circular motion. Be careful not to apply too much pressure since this could cause damage to the window. After the area has been smoothed using a damp cloth to clean any remaining polish residue.
Think about purchasing a non-abrasive glass polish if you've got a an extremely deep scratch that you can't remove. This can be bought at any DIY store and should be applied following the directions on the packaging. You can also use nail polish to cover up any superficial scratches that may appear on the glass. Ensure that the nail polish is clean and is only applied to the scuffed area of your window.
Haze
The presence of haze in your double pane window is an indication that the airtight seal between the two glass panes has been damaged. This must be fixed immediately so that dirt and moisture are not able to accumulate between the glass panes. This can cause damage to the glass and result in the glass's transparency being reduced.
There are many solutions to fix haze in your double pane windows. One option is to use a spray to defog the windows. However, this is just a temporary solution. If you want a permanent solution, you must contact an experienced glass company. They can fix the issue or replace gaskets if required.
Another method to eliminate the problem of haze in double-glazed windows is to make small holes in the frame of the window using a carbide-tipped drill. You can then insert a desiccate bag into these holes, and wash the window with rubbing alcohol. The water will help to remove the haze from the window and wash it.
It is essential to ensure your windows are maintained and regularly cleaned to prevent fogging. This will let you see through the double panes and enjoy a stunning view from your backyard or at home. In addition, ensuring that your house is ventilated is also beneficial. This will help to ensure that any condensation is swiftly sucked away, rather than being allowed to settle and then reseal the window.
It is not enough to clean and maintain your windows frequently, but also ensure that they are installed correctly. Installing windows should only be performed by a glass company with years of experience. This will ensure that the seals and gaskets are installed properly, and fit tightly. It's a good idea to repair your windows as soon as you can before they start showing signs that they are wearing out. This will prevent expensive double pane window repairs.
In general, double-glazed windows with insulation are designed to last about 20 years. They are designed to stand up to various weather conditions like extremely cold temperatures, high temperatures, humidity and repeated openings and closings. But, it is important to remember that the time-to-life of double-glazed windows may be reduced by improper installation or faulty materials.