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 aging you could be eligible to have them fixed under warranty.

Double-glazed window repairs require resealing the existing glass unit. Misting is a clear indicator that the seal has failed and you need to get it repaired.

Damaged Glass

Double pane windows require an airtight seal to function correctly. Condensation between glass plates is a common sign of a failing seal. While condensation between glass isn't an issue that needs to be fixed, it's typically a sign that the glazing unit needs to be replaced. If you have an older double glazed window, this could mean replacing both the frame and the glass. If your frame is in good shape you might be able to save money by just replacing the glass.

Double-paned windows can develop cracks due to the fragility of glass. Unless the cracks are caused by mechanical damage or an unusual impact, it's possible to repair these cracks using epoxy and small amount of elbow grease. Begin by cleaning over the area that is cracked using a moist cotton rag and then apply epoxy to the crack, according to the instructions of the manufacturer. Allow the epoxy to completely dry before sanding it down and painting over the repaired area.

A simple strip of masking tape can also be used to prevent a crack from spreading. A single strip of masking tape applied to each side of the crack should suffice to stop cracks that appear superficial from spreading, such as stress-cracks caused by low temperatures. If you're dealing more serious cracks that have already formed in your glass, it might be better to contact a professional to ensure the safety of the repair.

The process of replacing a single pane of double-pane window glass is a dangerous and Repair Double Glazed Windows challenging DIY task. Double-pane windows are manufactured as a complete unit and sealed at the factory using inert gas, which means it's impossible to remove the glass without damaging the entire window. If you plan to replace the glass in your double pane windows, ensure that you choose a reputable brand that comes with a strong warranty.

You can also use newspaper to shield the window frame prior to deciding to remove the sash or replace any broken glass. This will help protect you from any glass shards with sharp edges that might fall during the process. It will also prevent any damage to the molding or trim of your home.

Condensation Build-Up

The good news is that condensation between windows is completely normal. It's caused by a disparity between the temperature of air and humidity levels, which causes water vapour to condense when it touches cold, hard surfaces like windows. This is usually a good thing during winter because it stops heat loss.

However, if you're noticing that your windows are looking cloudy and have a layer of moisture on them, it's time to call in an expert glazier. This indicates that the seal between the two panes is beginning to weaken and allows moisture to enter the window.

You can try to stop this from happening by making use of a dehumidifier, increasing ventilation or applying a de-icing agent. Alternatively, there are several specialist companies who will repair condensation build-up in double glazed windows by drilling holes in the window and pumping or injecting a specific desiccant to remove the excess moisture. This involves taking the sealed unit out of the frame and cleaning each glass pane before refilling the desiccant. This is usually a more expensive option but it is worth checking whether the company you use is fully insured and registered with FENSA.

Be aware that altering your double-glazed windows can invalidate any warranties. If you have a warranty on your windows, it's recommended to let the manufacturer know about any problems that arise, as it will be accountable for the replacement of windows under warranty. Additionally, any damage that is caused through tampering will likely not be covered by your warranty, so it's better to seek expert advice before making any DIY repair. This is particularly applicable to older units as they can sometimes be more susceptible to failure. If this happens, it's probably best to replace the whole glazing panel. This way, you'll have brand-new windows that will last for years to come.

Scratches

It's not unusual for double-glazed windows to be affected by scratches to their surface. This can be a result of environmental factors or even caused by the way in which the window was installed.

Thankfully, most of these scratches are not too severe and can be easily repaired with some do-it-yourself home remedies. If your windows are damaged to the point where you can feel them with your finger, it is best to seek out a professional for help to ensure that the glass is restored to its original form.

These scratches happen by objects like tree branches, pet nails and cleaning products which are abrasive rub against the glass of your windows. Often, these scratches can be cleaned with certain non-abrasive products like iron oxide or cerium oxide polishes which you will have to continue using until the scratch is not visible anymore.

Scratches can also be caused by sanding the wood trim around your windows and may occur during construction work. They are difficult to repair, but a small amount of baking soda mixed with water should help smooth the area that has been buffed and remove any remaining scratches.

Metal polish can be used to eliminate deep scratches. Add a small amount to cotton balls, or a clean microfibre cloth and gently rub the area in a circular motion. Be careful not to apply too much pressure, as this can cause further damage to the window. After the area has been smoothed using a damp cloth to wash away any polish residue that remains.

Consider purchasing a non-abrasive special glass polish if there is a a deep scratch you cannot remove. This is available at any DIY store and should be applied according to the directions on the packaging. You can also use nail polish to cover any superficial scratches on the glass of your window. Make sure that the nail polish is clean and is only applied to the scratched part of your window.

Haze

The presence of haze in your double pane window indicates that the airtight seal between the two panes of glass has deteriorated. This must be fixed as soon as you can so that dirt and moisture don't build up between the glass panes. This can damage the glass and reduce its transparency.

There are a number of ways to eliminate haze from your double pane windows. One option is to apply a spray to defog the windows. This is a temporary solution. If you're looking for a long-lasting solution, you'll want to contact a professional glazing company that can repair the problem and Repair Double Glazed Windows replace the gaskets, if necessary.

A carbide-tipped tool may be used to drill tiny holes in the window frame to remove haze. You can then insert in a desiccate bag into these holes and then wash the window with rubbing alcohol. The water will help to clear the haze and cleanse the window.

It is vital to keep your windows well maintained and regularly cleaned to avoid fogging. This will let you look through the double panes and enjoy the stunning view from your home or garden. Additionally, making sure that your house is ventilated can also be beneficial. This will help to ensure that any condensation is swiftly removed, instead of being allowed to settle and reseal the window.

You should not only clean and maintain your windows frequently and make sure that they are properly installed. The installation of your windows should be completed by a glass company with experience. This will help to ensure that the gaskets have been installed properly and have an exact fit. It's also recommended to get your windows repaired as quickly as you can, before they start to show signs of wear and tear. This will prevent costly repairs to double pane windows.

In general, double-glazed windows with insulation are designed to last approximately 20 years. This is due to the fact that they are built to withstand a variety of weather conditions, including very cold temperatures, extreme humidity, heat as well as repeated closing and opening. But, it is crucial to keep in mind that the typical time-to-life of double-glazed windows may be reduced by improper installation or faulty materials.