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20 Myths About Double Glazing Door Repairs: Dispelled
Double Glazed Door Repairs

Double-glazed windows and doors keep noise and draughts away, while allowing heat to pass through. This helps reduce the disturbance caused by barking dogs as well as traffic on nearby roads. They also serve as a deterrent to burglars because they are extremely difficult to break.

As with any other home improvement product, they can have issues. This article will address the most frequently encountered problems and solutions.

Broken panes

A small stray pebble from your lawn mower, a drink set down too heavily on your glass-topped coffee table, or the sudden weight of snow can all shatter window panes. This could leave your home vulnerable to weather damage and create a distasteful view. Double pane windows can be repaired by replacing the damaged glass and restoring their frames. Professional window companies can provide replacement glass panes. However, the repair is possible by yourself if you are familiar with wood-framed windows and have some basic tools.

The first step to repair a damaged window is to remove old glazing and glazing points. This requires a bit of care since the old glass can be fragile and hard. Wear gloves and a face mask to shield yourself from flying bits of glass. Use a putty knife pry up the old compound for glazing and the glazing points from the recesses of the frames.

Once the old glass is removed, measure the opening for the new window pane. The pane should be a little smaller than the size of the rabbet grooves to give the window room to expand and contract in response to the weather's changing. Hardware stores can cut panes according to precise dimensions.

After the new pane is placed, roll a piece of glaziers' putty around the perimeter of the frame and into the glass-frame joint. If the putty appears too hard it can be softened by dipping a knife in linseed. Then smooth the compound to create a neat and even joint.

Once the putty is dry paint it with a good exterior house paint and let it cure completely. If you don't have exterior paint on hand, you can also refinish the putty using wood varnish. Be sure to clean any varnish from the glass prior to re-glazing it. This will stop the putty from sticking to the glass and leaving a water stain that could cause permanent damage.

Misted panes

Double glazing is a great method to keep your home looking neat and modern. If you have double glazing that is misting or condensed between the panes it is not only unsightly, but can also make your home feel cold and uncomfortable.


Double-glazed windows are constructed by sealing two panes of glass together and filling in the gap with air or gas (such as xenon or argon) to create an insulation barrier that keeps heat in and cold out. Unfortunately, over time, this seal may fail due to a variety of causes. This can be due to age, environmental factors like high temperatures and humidity and issues with the installation.

It is crucial to fix the issue when it first occurs. If not addressed, it can cause more damage and reduce your home's energy efficiency.

It is good to know that repairing your double-glazed windows is easy. You can either use a desiccant to absorb moisture, and then reinstall the air seal. Alternatively, you can drill into the window. Then, clean the area with rubbing alcohol. This technique requires certain level DIY skills and is not recommended to people who aren't at ease drilling holes into double pane windows.

A cloth soaked in vinegar can be placed between the window panes. This will help in absorbing moisture and prevent further condensation build-up. Once the towel is saturated put it away for a few hours, then wash the window thoroughly with water to eliminate any excess vinegar.

There are kits that will allow you to repair double-glazed windows without drilling any holes. The glass is cleaned from the outside using dry pellets that disappear with time. These kits are typically inexpensive and can be extremely efficient in getting rid of condensation and restoring double-glazed windows back to their original splendor. However, it's worth remembering that this solution only works for a short duration and will require repeated use according to the amount of moisture in the air between the windows.

Sagging panes

Over time, windows can start to sag if they are not properly supported or fastened. A window that is sliding is not only unsightly but also means the seals have failed, which can reduce the energy efficiency of the glass and frame. Visible condensation is the main sign of a failed sealant and is a signal that it's the right time to have windows replaced. The space between the panes of double-paned windows are typically filled with silica gel that is capable of absorbing water vapor to stop condensation. This is the main reason why double-paned windows are more energy efficient than single paned windows.

Sagging windows can be corrected by adding support to the frame's bottom by using L-brackets. This can prevent the sash from sagging beneath the lower hinge shoe. listen to this podcast -glazing companies can easily do this and it is a relatively cheap way to fix windows that are sagging.

Broken seals

Modern double-glazed windows come with window seals which are essential to keeping your home energy efficient and draught free. They are susceptible to being damaged or worn out and even impacted by extreme weather conditions. If a uPVC window seal becomes broken it will allow cold air to enter your property during winter and hot air to escape during summer, which can result in a rise in your heating and cooling costs.

There could be a problem with the seals if there are drafts coming from the window frame or if the glass is fogging. This is a clear sign that the seals have been damaged and the gas (usually argon or Krypton) which was sealed between the two panes has leaked out and allowed moisture to enter the window. Unattended moisture can lead to dampness and mold which could be hazardous to your family's health and comfort.

Another indication of a broken window seal is the appearance of condensation that is unable to be wiped away from the inside or outside of your glass. This is a common issue for modern double-pane windows that are sealed with an inert gas that can develop when the temperatures of the air and the glass conflict. If your windows are still insulating the property and providing an inviting living space it is likely that the seals have been broken or blown away, but they're simply old and need to be replaced.

In the final analysis, ensure that the frame of the window and the surrounding area of the glass are free from any chips, cracks, or discoloration. These signs of damage could indicate that the frame has moved around the glass panes, which can cause the seals to crack. You should have your windows professionally replaced at least once per year to ensure that they are working correctly.

There are a myriad of methods for resealing your windows, but the ideal method is determined by the severity of the damage and the state of your windows. To ensure you use the right materials and methods, it's recommended to consult with an expert before undertaking any DIY work on your windows.

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