How to Repair Double Glazed Windows
Double glazing is usually covered by a warranty for 10 or 20 year. If your double-glazed windows begin to show signs of aging, you may be entitled for them to be repaired under warranty.
Double-glazed window repairs require resealing the existing glass unit. Misting is a clear sign that the seal has failed and you need to have it fixed.
Glass damaged
Double pane windows rely on an airtight seal in order to perform properly. The most common indication that a seal is failing is the formation of condensation between the glass plates. While condensation between glass is not an issue that needs to be fixed, it's typically an indication that the glass unit is in need of replacement. If you have an older double-glazed window, this could require replacing both the glass and the frame. If the frame is in good condition however, you can usually save money by replacing just the glass.
Glass is fragile and it's not unusual for double-pane windows to crack as time passes. If the cracks aren't caused by mechanical damage or a sudden impact, it's often possible to repair the cracks with epoxy and a tiny amount of elbow grease. Follow the manufacturer's instructions and scrub the crack using a wet cotton cloth. Then, apply epoxy to the crack. Let the epoxy completely dry before sanding and painting the repaired area.
A simple strip of masking tap can also be used to prevent a crack from spreading. One strip of tape placed on both sides of the damaged area is enough to keep superficial cracks, such as stress cracks caused by low temperatures, from worsening. If you have deeper cracks in your glass that are already present, it is recommended to speak with an expert for repair.
Attempting to replace just one pane of double-pane glass is a difficult and dangerous DIY job. Double-paned windows are made as a whole unit and sealed with inert gases in the factory. Therefore, it is impossible to take off just the glass without damaging the window. If you're planning to replace the glass in your double-pane windows, ensure that you select a high-quality brand with a solid warranty.
You can also apply newspaper to protect the window frame before you remove the sash or replace any broken glass. This will protect you from any glass shards with sharp edges that may fall during the process. It will also prevent any damage to the trim or molding of your home.
Condensation Build-Up
The good part is that condensation occurring between window panes is totally normal. It's caused by a disparity between the temperature of air and humidity levels and causes water vapour to condense when it comes in contact with cold impenetrable surfaces such as windows. This is usually a good thing during winter, since it prevents the loss of heat.
If your windows look like they are cloudy and have a thin layer of water on them, you should contact a professional glazier. This is an indication that the air gap seal between two glass panes has started to degrade and allowing moisture into the window.
You can stop this by using a dehumidifier, improving ventilation, or using a de-icing agent. Additionally, there are professional companies that can help repair condensation build-up in double glazed windows by drilling holes into the window and injecting or pumping special desiccant to eliminate the excess moisture. This is a more involved procedure that requires the unit to be removed from the frame, opening up each glass pane and thoroughly cleaning them, then filling them with desiccant prior to sealing them back up. This will usually be more expensive, however it's worth checking that any firm you choose to use is insured and registered with FENSA.
It is important to keep in mind that altering your double glazed windows is not recommended and could end any guarantees. If you have a guarantee on your windows it's always recommended to let the manufacturer know about any problems that arise since it is accountable for the replacement of units covered under warranty. It is best to consult an expert before undertaking any DIY repairs. This is particularly the case for older units since they're often more prone to fail. It's best to replace the entire glazed panel in case this happens. You'll then have brand-new windows that will last for a long time.
Scratches
It's not unusual for double glazed windows to be affected by scratches to their surface. This can be due to environmental factors, or even the manner in which the window was constructed.
Thankfully, most of these scratches are superficial and can be repaired by using a few home remedies that you can do yourself. If your windows are damaged to the point that you can feel them with your finger it is recommended to consult a professional to ensure that the glass surface is restored to its original form.
Superficial scratches result from objects scraping against the glass surface of your windows like tree branches, pet claws and abrasive substances used for cleaning. These scratches are usually removed using non-abrasive materials such as iron oxide or polishes made of cerium dioxide. You will require these products until the scratch disappears.
Scratches can also be caused by sanding wood trim around your windows. It can happen during construction work. These can be difficult to repair, but a small amount of baking soda mixed with water will help smooth out the area that has been buffed and remove any remaining scratches.
For more extensive scratches you can use a metal polish to smooth the area and eliminate them. Add a small amount of the product to a cotton ball or clean microfibre cloth and gently rub the affected area in a circular motion. Be careful not to apply excessive pressure, since this could cause damage to the window. After the area has been smoothed using a damp cloth to wash away any polish residue that remains.
If you've got a particularly deep scratch that you just can't get rid of, think about purchasing a non-abrasive glass polish. This is available at any DIY store and must be applied following the instructions on the product packaging. Alternatively, you can use nail polish to smooth the area and cover any minor scratches on your window glass. Make sure the nail polish is clear and that it is only applied to the scuffed area of your window.
Haze
The appearance of fog in your double-pane window is a sign that the airtight seal between the two panes of glass has deteriorated. This should be repaired immediately to ensure that moisture and dirt do not build up between the glass panes. This could damage the glass and decrease its transparency.
There are a number of options to remove haze from your double pane windows. One option is to use a defogging spray. However, this is only an interim solution. If you're looking for a long-lasting solution, you'll need to contact a professional glazing company that can fix the issue and replace the gaskets, if necessary.
Another way to solve the problem of haze in double-glazed windows is to drill tiny holes into the window frame, using a carbide-tipped drill. Then, you can insert desiccate packs into these holes, and wash the window using rubbing alcohol. The water will help rid the haze and clean the window.
To avoid fogging, it is essential to maintain your windows and clean them regularly. This will keep your double panes clear and let you take in the stunning view of your garden or home. Also, ensuring that your home is well ventilated will also be beneficial. This will help to ensure that any condensation gets sucked away, rather than being allowed to settle and then reseal the window.
In addition to the regular cleaning and maintenance You should also make sure that your windows are correctly installed. Installing your windows should only be performed by a glass company with experience. This will ensure that the gaskets and seals are installed correctly, and that they fit snugly. It's a good idea get your windows repaired as quickly as possible before they begin to show signs of wear out. This will help avoid expensive double pane window repairs.
In general, double-glazed windows that have insulation are designed to last approximately 20 years. This is because they are designed to stand up to various conditions like extremely cold temperatures, extreme humidity, heat, and repeated opening and closing. It is important to keep in mind that the lifespan of double glazed windows may be reduced by inadequate installation or defective materials.
