energy efficiency

15 Reasons Not To Overlook Double Glazed Window Repair

7 min read

Double Glazed Window Repair

Double glazing is an excellent energy efficient investment that prevents loss of heat during winter months and helps keep your home cooler during the summer. Restoring your double-glazed windows as needed is a great way to ensure they remain in good working order.

Over time condensation and misting could affect your double-glazed windows. Double glazed windows may be difficult to open and close.

Broken Panes

A rogue baseball or a flying pebble from your lawnmowers or even a storm that is heavy can shatter the double panes of your windows, leaving your home exposed to the elements. Although a window that is cracked can be difficult to fix however, you don’t have to replace it entirely. In fact the insulated glass between the two panes is in good shape and you can repair your double-pane window with some DIY effort.

To begin, you’ll need to take the broken glass out of the frame. You’ll need to be careful to keep glass shards from falling to the floor double glazing repair or slipping off the frame. Wear work gloves to protect your hands and use an abrasive cloth around the damaged glass to avoid further damage or cuts. After removing the broken piece, carefully clean the entire frame of the window to get rid of any remaining sealant or debris. Sand rough areas of the window frame to create a smooth surface to install your new window.

After cleaning the frame after cleaning, you can apply a second layer of glass to the area where you removed the broken pane. This is the most effective method to protect and seal your window, and will save you energy costs by preventing water and drafts from entering your home. The next step is to select the glazing material. There are a variety of options such as clear tape, which is more durable than regular tape, and can prevent further cracking of your window, or glazing film that is similar to clear plastic wrap. The advantage of this choice is that it can be painted over to match the frame you have and will also keep out rain and snow as well.

Regardless of the material you select regardless of the material you select, it is crucial to press glazier’s facets into the seam where the putty meets the frame. They will help keep the glass in place and will help it stick to the frame. Glazier’s points can be found in hardware stores, and they are available in pre-made ropes which you roll out onto the frame rabbets.


If you’re experiencing problems with condensation, it’s best to call the window manufacturer. There are warranties and guarantees to cover these problems. Condensation or fogging between the panes of your windows is a sign that the seals are broken. Only an expert can fix this issue by replacing both panes.

This process is a little tricky and requires the use of special tools to take off the old pane and install the new one, but it can be done by a professional who will provide the necessary equipment. It is best to leave the work to an expert. These tools can be risky.

Wear safety glasses and gloves if you opt to do it yourself. You may be exposed to glass fragments flying around. It is essential to take out all putty or metal glazing points from the grooves that will receive the new window. It is also recommended to wire-brush the frame and vacuum or wipe it with a damp cloth. When the frame is dry and clean you’ll need to purchase a replacement glass that is 1/8 inch smaller in each direction than the window, and then test it into the grooves.

Based on the frame you have depending on your frames, you’ll need to apply a layer of silicone caulk on the grooves to ensure that your new pane is secured in position. Once the silicone caulk has dried you can smooth it out and make any adjustments. The wood molding can be reinstalled.

Double-glazed windows may become difficult to open or close when the weather is extremely changing. Extreme temperatures can cause frames of double-glazed windows to expand or shrink, causing them to become sagging and stick. If this is the problem try wiping down the frames with water and then lubricating the joints. However, it may be best to contact the company who installed your windows for help.


Misted Double Glazing is a window issue that occurs when moisture gets trapped between the glass panes of your double-glazed windows. Double glazing consists of two panes of glass that are separated by an insulating area, typically filled with argon gas for improved thermal efficiency. This creates a airtight seal that keeps warm indoor air inside and cold outside air out.

The seal may be damaged over time, and moisture may build up between the panes of glass, causing them to appear misty. This happens because the sun’s rays heat the space between the panes of windows, causing water to vapourize.

This is a normal occurrence however, if it occurs between the window panes it can be a problem since it will no longer be able to regulate the temperature of the room and will allow the outside temperature to affect the indoor temperature. Northfield Glass can help you if your double-glazed windows start to fog.

We can replace the sealed blown unit without having to replace the entire window, which is a lot less disruptive than a complete replacement. Our misty glass repair involves taking off and cleaning the glass unit and replacing it with a brand new one. This will create a seal that is watertight again.

Certain companies in the business claim to inject chemicals through holes into windows that have been misty to eliminate the fog and condensation. We do not recommend using this method. This method is not only ugly, but it can cause damage to the toughened glass and leave you with windows that do not fully function.

If you don’t fix the problem immediately, it could lead to mold, which could not only harm the window, but could also cause health risks for your loved ones. The moisture in the window may cause other issues in your home like damp or rot. In some cases it might be necessary to replace the entire window.

Blown or failed

Modern double-glazed windows feature two glass panes with an inert gas or air between them. This helps to improve their thermal efficiency, allowing warm air in and cold air out. Over time, this gas can become depressurised and cause a variety of issues.

One of the most frequently encountered is condensation occurring between the panes. It’s not a sign of a window failure, but it could be a sign you should reseal the panes. Condensation is also a sign of a broken double glazing, which will require re-installation.

You should also look out for drafts coming through your double glazed windows. This could be due to the seal being damaged or handle that is broken, or double glazing repair a damaged lock. A draught can be obvious and result in higher heating bills Therefore, double glazing repair it is essential that you get this fixed sooner rather than later. Test the seals on the window frame by feeling for cold air.

You will also notice water beads on the interior of windows if your window seals aren’t working. This is a sign that you need to replace the seals on your double-glazed windows.

The frames of your windows are designed to move a little bit in order to do to keep the glass sheets in place. In time, this special packaging material could be compressed. This will cause the seal to become broken. This will allow air to flow between the panes and reduce the efficiency of your window.

A blown seal is an obvious sign that your double glazing has failed and should be repaired immediately. A blown seal will stop your double glazing from performing its primary purpose that is to keep the cold out and warm air in. Additionally, a blown seal can let moisture in, which could cause mold and other unpleasant conditions. You should call a double glazing repair specialist when you spot a damaged seal in your double glazed windows, since they could replace the whole unit.

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