Four Common Signs That Double Glazed Window Repair Is Necessary
Double-glazing windows are a fantastic option to reduce energy consumption. They are susceptible to damage over time. Fortunately, they are easy to repair.
A leaky seal can be detected by the foggy glass, condensation between the panes, and even mist. A professional can often solve this issue without having to replace the entire window.
Broken Panes
A stray baseball, hurled rock or even the force of a strong wind can cause a crack in windows with double panes. If this happens, it may be difficult to know if the entire window needs to be repaired or if a replacement could be salvaged from the insulation benefits that this type of glass is known for.
Repairing a broken glass pane in a double-glazed window doesn't have to be as difficult as it might seem. You can repair it yourself if you have the right tools and know how to make use of them. By using the right tools, you can avoid further damage to your windows. You will also be able to avoid injuries due to handling sharp glass.
The first step is to remove the old sealant from the broken glass. You can do this manually so long as you've got protective gloves on and a method to dispose of the waste in front of you. Make use of a multi-purpose tool, or deglazing knife to do the job. Once you've removed the sealant from the window, take care to remove the broken glass and store it in a safe place.
The next step is to prepare the frame for the replacement pane. Utilize a utility knife to scrape off any caulking and paint on the rabbets (the grooves in the sash where the glass is placed). The wood can be exposed by using a paint remover or sandpaper. Apply an exterior primer coat on the exposed surface.
Then, you can apply putty on the rabbets to prepare for the installation of the new glass. The putty should be soft and warm so that it can be used in the rabbets. It is important to apply pressure evenly over the entire surface, so that there aren't any gaps.
After the putty has set, you can put back in the wooden stops and silicone the edges to ensure that your double pane windows are as secure as you can. You should also replace the weather stripping that runs along the bottom of your frames to increase aeration and prevent water from entering the home. This will also lower the cost of energy.
Foggy Glass
Foggy windows can be a sign of a broken seal, allowing drafts or moisture to pass through the gap. This is most common in humid and wet climates where the wooden frames could rot if exposed to excessive amounts of condensation and water. If this is the situation, a replacement window might be required but it's generally more cost-effective to address the issue using the current glass unit.
This can be done by drilling small holes in the inside of the frame with the carbide-tipped drill bit in order to ensure that glass is not broken panes. The moisture that is trapped can be eliminated using the aid of a dehumidifier or cleaning agent. It's important to avoid doing this during a time that is extremely hot or cold. This can put too much pressure on the glass, and could cause it to break. Wear safety gloves and goggles since you'll be working with sharp tools close to the glass.
Once the fog has gone, you can add small spray tubes to one of your holes and use it to clean the glass. After the window has dried it is possible to apply caulk around the hole and the edge of the glass to protect it from the elements.
Depending on your level of skilled in DIY, you may want to try to repair the leaky seals yourself rather than hiring a professional. However, this can be a risky job and you'll have to constantly be aware of the condition of the plug that is installed into the gap. Even if you're successful, the chances are that the issue will recur in about six months, or so, as new moisture creeps back into the gap. This could cause draughts, condensation and electrical hazards in the home. It is best to employ a qualified professional to do the job.
Condensation between the Panes
Condensation on double paned windows is more than just an inconvenience. It indicates that the seals are failing. This allows moisture to get in, which can damage the gaskets and when the condensation is very severe, can also jam or cause rot to wooden window frames. This is typically solved by replacing the window with new ones that have gaskets and sealings.
This can be expensive and is not always feasible. Particularly if one or both panes are cracked or broken. There are options to replace the entire unit of glass that can provide long-term double glazing repair solutions.
The first step is to remove any condensation with a commercial defogging solution such as WD-40 Original For Windows. The spray can be spray on both sides of the glass and will usually absorb all the moisture in minutes. This should be done at least every day, but can be repeated if necessary.

If the issue persists, it might be necessary to make a couple of tiny holes in the outside of the window, near the bottom edge. When the sun shines through the glass, it will heat up, and if there's any condensation inside the window this will be pushed towards the holes and then be emitted through the holes as the air expands. This usually clears the window of condensation, however, since it hasn't addressed the root of the problem in the beginning, it is likely to be a continuing issue.
Alternately, it is possible to employ a hole-free approach however this won't perform as well and carries the risk of cracking or shattering the glass. A special adhesive is inserted into the cracks to stop them spreading further. This could be a useful long-term solution, but it's not as effective as a replacement unit with an entire seal. In both instances, it is best to have the work done by an expert to ensure the process is followed precisely and to avoid problems of future condensation or leaks.
Mist
If you notice a misty appearance on windows typically, it's an indication that the seal has failed. In certain cases, it can be repaired however most of the time it will require replacement of the seal.
This issue can occur in both new and old double-glazed windows. This is usually caused when there is a significant temperature variation between outside and indoors. This can cause moisture to build up inside the glass as the cold air comes in contact with warm air. The condensation then dries on the glass's surface creating fog or mist.
The way this is avoided by modern double glazing is that the space between the panes is filled with a gas called argon. This creates a powerful barrier between cold and warm air. The window is also sprayed using a silica-based formula that is designed to absorb moisture in between the glass panes. These chemicals will wear out over time and you could see moisture build up in the window.
If the condensation is confined on the inside of your double-glazed windows, it could be possible to repair them instead of replacing them. The repair process will involve removing the sealed unit from the frame, splitting the panes from the spacer bars, then cleaning each one thoroughly, and then replacing the desiccant. Repair My Windows And Doors should be a clean window with no more condensation on the inside. This is a great option for those looking to save money, but don't want to replace their existing windows.
Obviously, if you have broken panes, extensive rot, or frames that have lost its strength, replacement is necessary. If you are experiencing issues with the seal on your windows it could be possible to have your windows saved and upgraded to be more energy efficient. Find a local company that specialises in double glazed window repairs to find out what options you have to fix the current glass.