Double glazed windows can need repair for a variety of reasons, like condensation between the panes, draughts or frames that are sagging. Many of these issues can be solved.
If your window or door is difficult to open try oiling the hinges, mechanism and handles. This is a simple, cheap fix.
Broken Panes
When a window pane is broken and shattered, it loses its insulation properties and can cause a draft. If the muntins that separate the glass panes also broken, moisture can leak between them causing condensation, mould or mildew. This can make your home less efficient in energy use. It is recommended to have a professional repair a broken window to ensure the most effective seal and energy efficiency.
First, you will need to remove any broken glass. Begin by putting a drop cloth beneath the broken window and then cutting around the perimeter of the pane using an inexpensive glass cutter (available at most hardware stores). It's recommended to lubricate the cutter with lightweight oil before you begin. This will stop the glass from shattering too easily. You can then use the tool's ball-shaped end to loosen the fragments and they should fall away quickly.
Scrape any old glazing compound off the recess of the frame after the glass has been removed. This will expose the glazier's point and metal clips that keep the pane in place. If there's any sign of corrosion, these clips should be replaced with new ones. If the window is wooden, the glazier's points can be re-used if they're still intact.
The remaining frame must be prepared to allow the re-glazing. With a caulking gun apply a continuous strip of compound around the inner edge of the recess. Use a high quality putty, such as a Glazier's compound that is contained in cartridge. Allow it to dry before re-inserting the glass. Reinstall the metal clips if they are attached to the frame. Reinstall the divider muntins.
Condensation
Condensation can cause problems for double-glazed windows, particularly in winter. It is typically caused by excessive levels of moisture in your home. Warm air is absorbed by cold glass, which condenses into water droplets. These then collect in the corners or frames of the window. You can avoid this by opening your windows more often and improving ventilation with extractor fans, and utilizing dehumidifiers. If condensation continues to occur it is recommended to contact an expert who will be able to pinpoint the issue and repair or replace the windows if required.
Condensation in a double-glazed glass window is a sign the seal has failed. The seal that is applied by the factory could wear away over time and let cool air get between the panes. This can cause the window to get smudged and then develop mold if it is not addressed immediately.
You can use a hairdryer as a quick solution to eliminate excess moisture. However, this is just temporary solution and should be used only as an option last resort. If the condensation has been left for too long it may be experiencing dampness or even mould in your home, which must be dealt with by a professional.
Professionals can reseal double-glazed windows for a more permanent solution. They'll remove the affected piece of glass, clear the gaps and pipe into hot air to evaporate any lingering moisture. During the process, they will also look for any damages, mildew or mould growth, and perform an air draughtproofing treatment to ensure that your windows are fully functional and energy-efficient once again.
Draughts
Rubber seals may wear down over time and create drafts between the two panes. It is simple to replace the gaskets, which will result in an airtight seal. This will keep warm air inside your home and colder air outside. You will reduce your energy bills.
Double glazing that is misted may be a sign of blown seals. The unit is made up of two panes of argon-filled glass separated by a spacer, creating an airtight window. If the seal has been blown it will allow water vapour to pass through your home through the gap, which will cause condensation between the panes that cannot be wiped off.
Fortunately, this is an easy issue to fix and windows can be replaced very quickly by professionals who have all the right tools and know how to do it right. The expert will employ an instrument designed to push in the new seals. This is usually quicker than doing it manually. The tools have a pointed tip that can be used to push the seals into corners.
In certain situations, a professional could be able to "reseal' your windows by drilling a small opening into the window and then putting in an adsorbent material or putty. This is less expensive than replacing your double glazing and still provides you with a reliable Draught-proofing system.
Faulty Hinges
Misted double glazing is a common problem that many people encounter. It can be caused by cracked or broken glass or frame or even a damaged seal. The good thing is that this can often be solved. This usually involves creating a seal between the two glass panes. The new seal will stop condensation, draughts, and leaks from happening.
Contact the company from whom you purchased your windows, and inform them of any issues when you notice them. You should inform the company in writing and ask for confirmation that they have received your notice. If there are any disputes, having everything in writing will aid in proving your claim.
A window repair professional might be able to drill a hole in the gap between your windows to eliminate moisture and make an airtight seal. This is a temporary fix that will not stop moisture from returning. It is also possible to replace the glass unit itself to ensure that it is watertight.
Remember that you should only attempt DIY fixes if your skills and knowledge are sufficient. Super glue or other DIY solutions could cause more permanent damage. If you aren't sure what to do, it is always better to seek professional advice. Inputting your postcode into the search box on Checkatrade will help you locate an expert in your area who can provide double glazing repair. All of our tradespeople have been thoroughly vetted, and screened and you can be sure that they will offer a top-quality service.
Broken Seals
Window seals, or insulation gas fills, keep double glazed windows in place. Many factors can cause them to break, like the weather, age, and power washing. It's important to know what the signs are and how to repair them.
If a window seal is damaged, humid air can seep between the two panes of glass, causing fog. This is a common issue that can cause the window appear disfigured. Once the seal fails, the inert gases argon and others are emitted from the window, thereby diminishing the glass's insulation capabilities.
A professional Glazier can replace a damaged window seal with a new one. However, this could be expensive and may not solve the fog issue completely. Some companies offer defogging, which involves putting a vacuum pump inside the window frame to remove moisture and clear the glass. This method isn't foolproof, and it does not replace inert gasses, so the fog can come back.
If the IGU (insulated unit) is beyond repair, a glazier could replace it. This is the most cost-effective method and is a good choice if you are looking for a long-term solution. It is recommended to choose a company with a guarantee for replacement windows to ensure that any issues are covered. This means you can be sure that you'll get most out of your investment. You can also avoid this issue by choosing an item of high-quality and following the care instructions that are provided by the manufacturer. This will help to prolong the lifespan of your window and reduce the need for repairs.
