energy efficiency

4 Dirty Little Tips On The Repair Double Glazed Windows Industry

7 min read

How to Repair Double Glazed Windows

Double glazing is typically covered by a guarantee of 10 or 20 years. If your double-glazed windows begin to show signs of aging, you may be entitled for them to be replaced under warranty.

Double glazed window repair involves replacing the seal on your existing glass. The seal is not working if you see misting.

Damaged Glass

Double pane windows rely on an airtight seal to function effectively. The condensation between the glass plates is a common indication of a failing seal. While condensation between glass isn’t an issue that is serious and can be fixed, it’s typically an indication that the glass unit requires replacement. If you have an older double glazed Window doctor, this could mean replacing both the glass and the frame. If your frame is still in good condition you might be able to save money by only replacing the glass.

Glass is fragile, and it’s not uncommon for double-pane windows to develop cracks over time. If the cracks aren’t caused by mechanical damage or a jarring impact to the window they can be fixed by using epoxy and elbow grease. Begin by cleaning the area that is cracked using a moist cotton rag and then apply epoxy to the crack following the manufacturer’s instructions. Allow the epoxy to dry completely before sanding and painting over the repaired area.

It’s also possible to keep cracks from spreading with an easy strip of masking tape. A single strip of masking tape on both sides of the crack should be sufficient to prevent cracks that are superficial from spreading, such as stress-cracks caused by low temperatures. If you notice deeper cracks in your glass that are already present, it’s recommended to consult an expert to repair the damage.

It is dangerous and difficult to replace a single pane within a double-paned window. Double-pane windows are constructed as a complete unit, and sealed in 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-paned windows, choose a brand with a long-lasting warranty.

It’s also a good idea to pad the window frame with newspaper before you attempt to remove the sash, and then replace any broken glass. This will shield you from any sharp shards that could fall on the way and also help to prevent any damage to your home’s trim or molding.

Condensation Build-Up

The good part is that condensation occurring between window panes is totally normal. It’s caused by a difference between the temperature of air and humidity levels that cause water vapour to condense when it comes in contact with cold impenetrable surfaces such as windows. This is usually a great thing during winter, since it stops heat loss.

If your windows appear cloudy and have a layer of water on them, you must call an experienced professional glazier. This is a sign that the ‘air gap seal between the two panes of glass has begun to weaken and allowing moisture into the window.

You can stop this from happening by using dehumidifiers, improving ventilation, or by applying de-icing agents. Additionally, there are professional companies that can help repair condensation build-up in double glazed windows by drilling holes into the window unit and injecting or pumping special desiccant to eliminate the excess moisture. This requires taking the sealed unit out of the frame and then cleaning each pane of the glass before refilling the desiccant. This is typically more expensive however, it’s essential to check that the company you choose is insured and registered with FENSA.

It’s important to remember that tampering with double-glazed windows is not advised and could end any guarantees. If you have a guarantee on your windows, it’s recommended to let the company be aware of any issues that arise as it will be accountable for the replacement of units covered under warranty. It’s best to consult an expert before undertaking any DIY repairs. This is especially the case for older units since they’re often more likely than modern ones to fail. If this happens, it’s probably best to replace the whole glazing panel. The windows will then be brand new that will last for many years.


Double-glazed windows are not resistant to scratches. This could be the result of environmental factors or can even be caused by the way the window was originally installed.

Most scratches are minor and can be easily fixed with some home remedies. If your windows have been damaged to the point that you can feel them with your fingernail, it is best to seek help from a professional to ensure that the glass surface is restored to its original condition.

Superficial scratches result from objects scraping against the glass surface of your windows, such as pet claws, tree branches and abrasive materials used when cleaning. Often, these scratches can be cleaned with some non-abrasive solutions such as iron oxide polishes or cerium oxide, but 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. It can happen during construction work. They are difficult to repair, but a small amount of baking soda and water should help smooth the buffed area and remove any scratches that remain.

Metal polish can be used to get rid of deeper scratches. Add a small amount the product to a cotton ball or Window doctor clean microfibre cloth and gently rub over the affected area in an upward motion. Be careful not to apply too much pressure since this can cause further damage to the glass. Once the area is smooth, use a damp cloth to wash away any polish residue.

Think about purchasing a non-abrasive glass polish if there is a an extremely deep scratch that you can’t get rid of. It is available at any DIY retailer. Follow the directions on the packaging. Alternately, you can apply nail polish to smooth the area and cover any minor scratches that your window glass may have. Make sure the nail polish is clean and is only applied to the scuffed area of your window.


The presence of haze in your double-paned window means that the seal between the two panes is damaged. It is essential to get this repaired as soon as possible to avoid ending with dirt and moisture build-up between the panes. This could cause damage to the glass and cause a reduction in transparency.

There are many options to remove the haze that has formed on double pane windows. One option is to apply an anti-fogging spray. This is only a short-term solution. If you’re looking for a permanent solution, contact a professional glazing company who can fix the issue and replace the gaskets, if necessary.

A carbide-tipped instrument can be used to make tiny holes in the window frame to remove haze. You can then put a desiccate pack into these holes, and wash the window with rubbing-alcohol. The water will help to remove the haze as well as clean the window doctor near me.

It is vital to keep your windows well maintained and regularly cleaned to avoid fogging. This will keep the double panes clean and let you take in the stunning view of your home or garden. Additionally, making sure that your home is ventilated is also beneficial. This will ensure that any condensation is quickly removed, and not letting it sit and reseal your window.

In addition to regular maintenance and cleaning, you should also make sure that your windows are properly installed. Installing windows should only be done by a glazing company with years of experience. This will ensure that the gaskets and seals are installed correctly, and that they fit securely. It’s a good idea repair your windows as quickly as possible before they start showing signs of wear out. This will prevent expensive double pane window replacement near me repairs.

Generally, insulated double glazed windows are designed to last for around 20 years. They are designed to stand window Doctor up to various weather conditions like very cold temperatures, heat, humidity and repeated openings and closings. It is important to keep in mind that an improper installation or defective material could reduce the life span of double-glazed windows.

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