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Double Glazed Windows Repairs

There are a variety of reasons your double-glazed windows may need repairs including condensation between panes to draughts and dropped or sagged frames. Many of these issues can be resolved.

If your door or window is difficult to open, consider oiling the mechanism, hinges and handles. This is usually a low-cost, short-term fix.

Broken Panes

If a window pane breaks, it loses its insulation properties and may cause draft. If the dividing muntins are also broken, it could cause water to leak through the glass panes, leading to condensation, mildew and mould and making your home less energy efficient. 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 take out any broken glass. Start by placing an inexpensive glass cutter from a hardware store under the broken pane. Before starting, you should make sure to lubricate the cutter with an oil that is light. This will prevent the glass from breaking too easily. You can then use the tool's ball-shaped end to loosen the fragments, which should come away fairly quickly.

After the glass has been removed, scrape any old glazing compound that has accumulated in the recess area of the frame. This will expose the metal clips and glazier's pins that hold the glass in place. Replace them if you notice any corrosion. If the window is made of wood, the glazier's points can be reused if they're in good condition.

The surface of the remaining frame will need to be prepared for the re-glazing. With a caulking gun apply a continuous strip of compound along the inside edge of the recess. Use a high quality putty, such as glazier’s compound in a cartridge. It should dry before installing the glass. If the frame is made of metal clippings, they must be removed as well. Reinstall the divider muntins.

Condensation

Condensation is a concern for double-glazed windows, particularly during the winter. It's typically caused by too much humidity in the home where warm air collides with cold glass, which then turns into water droplets, and then collects in the corners of your windows or across the frame. This can be avoided by opening windows more regularly, improving ventilation through extractor fans and running dehumidifiers to lower the moisture levels. If condensation continues to occur, you should call a professional who can diagnose the issue and fix or replace the windows if required.

It's also important to know that condensation on double-glazed windows could be a sign of a leaky seal. This is because the factory-applied vacuum seal can become degraded in time and allow cool air to flow between the panes. This can cause the window to become cloudy and eventually grow mold if it is not addressed immediately.

Hairdryers can be used as a quick solution to get rid of excess moisture. However, this is just an interim solution and should be used as the last option. If the condensation has allowed to sit for too long it may be experiencing dampness or even mould in your home, which should be addressed by a professional.

Professionals can reseal double-glazed windows for a more permanent solution. They'll remove the affected pane of glass, clear the gaps and pipe into hot air to evaporate any remaining moisture. During the process, they will also inspect for any damages, mildew or mould growth and then perform an air draughtproofing treatment to ensure that your windows are fully functional and energy-efficient once again.

Draughts

As time passes, the rubber seals around the edges of your glass are likely to break down and this can create a draught in the space between the two panes. This is typically a simple problem that can be fixed by replacing the gaskets and this will result in a sturdy and airtight seal once again. This will keep the warm air in your home and the colder air out, saving you cash on your energy bills.

Double glazing that has mist could be a sign of blow-blown seals. The unit is made up of two panes of glass separated by a spacer bar to create an insulating space. It is then filled with gas, like argon to make the window airtight. If the seal has blown the water vapour will get into your home through the gap. This will create condensation between the glass panes which can't be sucked out.

Fortunately, this is an easy problem to fix and the windows can be replaced quickly by professionals with the right tools and know how to do it right. The expert will employ an instrument designed to push the new seals in place and it is usually faster than doing it by hand. The tools also have a pointed tip which is useful for pushing the seals into the corners.

In some cases an expert could be able to "reseal' your windows by drilling a small hole in the window and adding a special desiccant material or putty. This is an economical alternative to replacements and it will still provide a reliable draught-proofing system for your double glazed window repairs glazing.

Faulty Hinges

Misted double glazing is a typical issue that many people face. This can be caused by cracked or broken glass or frame or even a damaged seal. It is possible to resolve this issue. This usually involves making a seal between the two glass panes. The new seal will help prevent condensation, draughts, as well as leaks.

You should contact the company from whom you bought your windows and inform them of any issues when you spot them. Make sure you do this in writing and ask them to confirm that they have received your notice. Having everything in written form will be helpful later if any disputes arise, as it is easier to prove that you did indeed complain.

In certain situations an expert in window repair may be able to drill a hole in your windows to draw out moisture and make an entirely new seal. However, this is typically only a temporary solution and won't stop moisture from returning. In addition, it might be possible to replace the glass unit itself, to ensure that it is watertight.

Remember that you should only try DIY fixes with the knowledge and skills you have are sufficient. Super glue or other DIY solutions can cause more damage over the long term. If you aren't sure what to do, it is always advisable to seek out professional advice. Entering your postcode in the search box on Checkatrade will help you find a local tradesperson that offers double repair of your glazing. All of our tradespeople are thoroughly vetted and checked, so you can trust them to provide a high-quality service.

Broken Seals

Window seals, also known as insulation gas fills, are what keep double-glazed windows in place. They can be damaged by many factors, such as weather conditions, age and power washing. It is crucial to be aware of the signs and how to fix them.

If a window seal is damaged, it allows humid air to seep in between the two glass panes, creating fog. It's a frequent issue and it can cause the window to appear visually altered. If the seal is damaged it is when any argon or other inert gas is lost from the glass, reducing its insulating properties.

A broken window seal can be fixed by replacing it with a the new one by an experienced glazier. However, this can be costly and might not resolve the fog problem entirely. Some companies offer defogging which involves putting an air-pump inside the frame of the window to eliminate moisture and make the glass clear. This method isn't 100% reliable and does not replace the inert gasses, meaning that fog could be re-created.

A glazier is also able to replace the entire IGU (insulated glass unit) when it's beyond repair. This is typically the most cost-effective option, and is a great option if you're seeking a long-term solution. It is recommended to choose a company that offers a warranty for replacement windows to ensure that any problems are covered. You can be sure that your investment will yield the most effective results. Alternately, you can attempt to avoid this issue by selecting a window of high-quality and following the manufacturer's maintenance instructions. This will prolong the lifespan of the window and reduce the number of repairs.