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Repairing Double Glazed Windows

Double glazing is a great investment for your home. However, over time, it could develop issues like condensation or misting.

This could be due to a variety of causes, but usually down to the seals no more being airtight, causing a loss in the gas that acts as an insulation between the glass panes. Knowing how to repair your double glazing could aid.

Broken Panes

A loose ball from the lawnmower, a hurled stone or even a cat's claw can cause a double-glazed window to break. In this case, heat or cold air is able to travel more easily between the two panes of glass which makes your home less well-insulated and increasing your energy costs. It's time to replace both windows if broken.

However, if one of the panes is damaged, but not completely broken It might be able to be repaired. First remove the old glass from the frame while wearing safety glasses and gloves. Remove the loose putty from the broken edges of the glass using a painter’s tool, which you can warm with the help of a heat gun. Use aluminum foil to shield the glass from cracking as the putty is being removed.

When the frame is ready to accept the new pane, you need to grease the cutter with the cheap glass cutting tool -- available at most hardware stores -- with lightweight oil like WD-40. Cut the glass around the perimeter, about 1 inch from the edge. Then, gently slide the glass into the rabbets, the grooves that form an l in the window frame where it sits. Utilize the chiseled edge of the tool to get rid of any excess putty around the edges.

Press glazier's tips into the frame at intervals of six inches around the joint where the glass meets the frame. Apply another cord of glaziers compound on the frame-glass joint and smooth using a putty knife. If your windows are made of metal, you can paint the joints with an adhesive designed to prevent rust.

Cracks

Although rare however, a sudden crack in your double glazing can occur, especially in older windows. The reason for this is usually due to differences in pressure between the two panes of glass, which are caused by extreme temperature changes. This is the reason it's crucial to keep your blinds shut in hot weather and to not open them too far when the sun is shining. this prevents excess heat from building up between the two glass panes.

The best way to avoid cracks in your double-glazed windows is to make sure that the frames are secure, especially at the hinges, locking mechanisms and handles. A quality double-glazed window should also be easy to open and close, without sagging or sticking. Oiling the hinges and mechanisms could help. You can also adjust the screws and locks to ensure that they are tight enough.

Be aware that a cracked glass window can be dangerous. If you have cracks in your double glazing and see loose shards of glass on the floor, call an emergency glazier as it's likely to be better to replace the damaged glass entirely rather than repair it.

Likewise, any condensation in between the two glass panes indicates that there is an issue with the seals and should be fixed straight away. A reputable glazier can drill into the sealed unit to inject or pump into drying agents (typically desiccant) to remove any moisture. This can be a simple inexpensive and efficient solution to this issue. But be aware that this is only a temporary fix and you will have to replace your windows in the long term.

Condensation

Condensation can be a problem with older double glazing. It occurs when moisture from the air is pulled into the gap between the panes and then is able to condense during the night. This is a completely natural event and not an indication of any defect in the windows or glass, however it can be a source of frustration for homeowners because it hinders the double glazing performing as effectively as it is supposed to.

Add vents or trickle-vents the frame to allow air to flow, eliminating any condensation that may be present in your home. This will also keep the temperature in your home and reduce energy costs over time.

Often a professional can repair the issue without having replace the entire window. They will drill tiny holes into the window in order to release any trapped moisture and then apply an antifog coating.

Contact the company where you purchased your double glazing as soon as issues occur. It is crucial to contact the company from which you purchased your double glazing from the moment you start experiencing problems. This will allow them to send a technician out to inspect the situation and resolve any issues before they worsen. It is also a good idea to ensure that all communications are in writing, like an email or a letter, as this will make it easier for you to contest any claims in the future.

While it is possible to complete some repairs yourself, it's normally much quicker and more effective hiring a professional do this. This is especially applicable to any issues that require specialist tools. Professionals will also provide a guarantee on their work, which you might not receive if you attempt to fix the double glazing by yourself.

Draughts

Double-glazed windows repairs are becoming increasingly popular because they improve energy efficiency, reduce the amount of noise that can be heard inside the home and protect furniture from damage caused by ultraviolet light. They also help reduce condensation, a common cause of mould. If they're installed correctly, it's easy for air to escape through the gaps between the panes of glass and cause drafts.

In double-glazed windows, the space between two panes of glass is filled with an gas that is insulating. The spacer bar typically contains a desiccant that helps to draw moisture out of the gap, preventing interior condensation. The desiccant's capacity to eliminate moisture from spacer bars diminishes and condensation may form between the glass panes. This is a common problem with double glazing that is not properly made however it is easily fixed by drilling holes in the glass or spacer and after that, putting in the dehumidifier.

The space between the two glass panes in a double-glazed window acts as an insulator by limiting the transfer of cold air from outside to inside your home. The insulating performance can be enhanced by using an inert, low-conductivity gas such as argon to fill the gap.

Double glazed upvc windows repair are more expensive than single-glazed windows for installation however, they're usually worth the cost as they lower cooling and heating costs, and help protect furniture from UV damage and can improve the value of your property. If you are considering installing double-glazed windows in your home, work with an experienced installer like Thermawood. Their retrofit double-glazing system allows you to benefit of a premium IGU without having to remove your frame and cladding.

Replacement

Double glazing offers numerous benefits to homeowners. it increases energy efficiency, reduces noise and condensation. It also reduces the chance of draughts or the build-up of mould on your window panes. However, they're not indestructible and there are times when problems can arise. It's worth remembering that you can typically have most problems with double glazing repaired, rather than replaced and save yourself the expense and disruption of having new windows installed.

Double glazing owners are often required to fix a leaking seal. If this is the case, it's important to contact an expert as soon as you can to schedule a suitable time for fitter a window fitter to arrive and make the necessary repairs to double glazing windows.

Another issue occurs when windows become difficult to open or close. This could be due to heat, or because the mechanism has become stiffer over time. If this is the case, try cooling the mechanism down and lubricating hinges and handles. It may also be that the frame is slightly dropping or sagging and requires realignment.

Misting is also something that can be easily repaired. It happens because the rubber seals that hold the two glass panes in place become weaker as time passes. This is typically caused by the frames shifting little as they age, and the specific packaging material that keeps them in place. This then leads to one or both panes of your double glazing shifting and breaking the all-important seal.

Misting can be treated by drilling holes into the glass affected and then removing the moisture inside. This is a temporary solution and should be repeated. A better long-term fix is to add trickle vents in your frames, which allows fresh air to circulate but won't let any warm air escape.