Double Glazed Windows Repairs
Double-glazed windows may require repair for a variety of reasons, including condensation between the panes, draughts or sagging frames. Fortunately, a majority of problems can be addressed.
If your window or door is difficult to open try oiling the hinges, mechanism and handles. This is usually a low-cost solution that is quick and easy to fix.
Broken Panes
When a window is damaged, it loses its insulation properties and may cause drafts. If the dividing muntins also damaged, it could cause moisture to escape between the glass panes resulting in condensation, mildew and mould and making your home less energy efficient. A window that is damaged should be repaired by a professional to ensure you get a perfect seal and the optimum energy efficiency.
First, you will need to take out any broken glass. Start by placing a low-cost glass cutter from an appliance store beneath the broken pane. It's worth lubricating this tool's cutter with a light oil before you begin. This will prevent the glass from shattering too easily. You can then make use of the tool's ball-shaped tip to loosen the fragments, which should come off fairly quickly.
After the glass has been removed, scrape away any old glazing compound that has accumulated in the recess area of the frame. This will reveal the metal clips and glazier's pins that hold the glass in the frame. Replace them if you notice any corrosion. If the window is made of wood the glazier points can be reused if they're still in good condition.
You'll then need to prepare the surface of the remaining frame to be re-glazed. Using a caulking gun, apply a continuous strip of compound around the inside edge of the recess. Use a high quality putty such as a Glazier's compound that is contained in cartridge. Let it dry before reinstalling the glass. If the frame has metal clippings, they should be replaced as well. Finally, install the dividers.
Condensation
Condensation is a frequent issue that double-glazed windows can experience particularly in wintertime. It is typically caused by high levels of moisture in your home. Warm air is absorbed by cold glass and condenses to water droplets. These then collect in the corners and frame of the window. You can avoid this by opening your windows more often and enhancing ventilation by installing extractor fans, and running dehumidifiers. If condensation continues to occur you should contact an expert who will be able to pinpoint the problem and repair or replace the windows if required.
Condensation in a double-glazed glass window is a sign the seal has failed. The vacuum seal applied at the factory can wear out over time and let cool air get between the panes. This can cause the window to fog up and eventually develop mold if it is not addressed immediately.
For a quick fix to condensation, try using hair dryers to dry the excess moisture. This is a temporary solution and should be used only as a last option. If the condensation has allowed to sit for too long you could be looking at mould or dampness in your home, which needs to be dealt with by a professional.
For a more long-term solution you can get your double-glazed windows sealed by professionals. They'll remove the affected pane of glass, clean out the gap and pipe in hot air to evaporate any lingering moisture. During the process, they'll check for the presence of mildew, mold or damage growth and apply a draught-proofing process to ensure your windows are fully efficient and energy efficient again.
Draughts
Rubber seals can get worn out over time and cause drafts between your two panes. It's an easy fix to replace the gaskets which will create an airtight seal. This will keep the warm air inside your home, and the colder air out, thereby saving you money on your energy bills.
Misted double glazing is a sign that the seals inside the sealed unit (sometimes called a DGU) have blown. The unit is comprised of two panes of glass filled with argon separated by a spacer, creating an airtight window. If the seal has blown it will allow water vapour to get into your space through the gap, creating condensation between the panes that cannot be wiped off.
Fortunately it is a simple problem to fix and the windows can be replaced quickly by specialists who have the appropriate tools and know how to do it correctly. The specialist will use an instrument that is designed to push into the new seals. This is typically faster than doing it manually. The tools have an edge that can be used to push the seals into corners.
In certain cases an expert could be able to "reseal your windows' by drilling a small hole in the window and adding an adsorbent material or putty. This is more cost-effective than replacements, and will give you an effective draught-proofing system for your double glazing.
Faulty Hinges
Many people have had misted double glazing. It can be caused by cracked or broken glass or frame or even a broken seal. It is possible to fix this problem. It is usually a matter of creating a seal between the two glass panes. The new seal will stop condensation, draughts, and leaks from occurring.
If you spot any issues, you should contact the company that sold you your windows. Be sure to do this in writing and request them to confirm that they have received your message. Writing everything down will be helpful later if any disputes arise, since it is easier to prove that you did indeed complain.
In some instances an expert in window repair may be able to drill a hole in your windows to draw out moisture and create an entirely new seal. This is a temporary fix and will not stop moisture from resurfacing. It is also possible to replace the glass unit itself, which will ensure that it is watertight.
It is important to remember that you should only try DIY fixes only if you have the experience and know-how required to do so. Super glue or other DIY solutions could cause more damage over the long term. If you are unsure of what to do, it is always advisable to seek out professional advice. Entering your postcode in the search box on Checkatrade will allow you to find a local tradesperson that offers double glazing repair. Our tradespeople have been thoroughly vetted, and screened to ensure you are sure they will provide a top-quality service.
Broken Seals
Window seals, also known as insulation gas fills, are what hold double-glazed windows in place. Many factors can cause them to break, like age, weather conditions and power washing, so it's crucial to be aware of what the signs are and how to repair them.
When a window seal fails humid air can leak between the two panes of glass, creating fog. It's a common problem, and it can cause the window to look visually disoriented. If the seal is damaged, any argon or other inert gas is lost from the glass, decreasing its insulation properties.
A professional Glazier can replace a damaged window seal with a new one. However, this could be expensive and may not resolve the fog issue completely. Certain companies offer defogging, which involves putting an air pump inside the window frame in order to eliminate moisture and clear the glass. However this method isn't 100% reliable and cannot replace any inert gases, meaning that the fog could be re-applied.
If the IGU (insulated unit) is beyond repair, a glazier could replace it. This is typically the most cost-effective option and could be a good option when you're looking for an option that lasts for a long time. It is best to choose an organization that offers a warranty on replacement windows. Mile End double glazing will ensure that any issues that you might encounter are covered. This way, you can rest sure that you'll get most value from your investment. You can also try to avoid this problem by choosing a premium window and following the manufacturer's maintenance instructions. This will extend the life of the window and decrease the number of repairs.