How to Repair Double Glazing

Double-glazed windows last for a long time and secure but they will wear and tear over time. Double glazing that is in need of repair can be identified by the sensation of draught between window panes or condensation.

Condensation or fogging between the panes is usually a sign that the seal holding the glass panes together has been broken. This can be fixed with the reseal.

Seals

Seals are a crucial component of double glazing as they improve the energy efficiency and insulation of the windows. Located between the glass panes and uPVC frames, they create an airtight, vital barrier that assists in keeping out the elements of wind, rain, drafts, and condensation that can cause damp on windowsills and walls. Window seals also help to keep cold and warm air separated, which could lower heating costs.

It is not unusual for window seals to suffer from defects. This is often due to the weathering process and exposure to harsh elements like high winds or rain, ice or snow. It can also be caused by faulty installation or chemicals like paint strippers, which harm the rubber.

When the window seals fail it could result in moisture and humidity may seep through the glass panes and cause fogging or misting on the windows. Double glazing may lose its insulation properties when the inert gasses between the panes are not present.

If you know what to watch for, you can try to carry out some DIY double-glazed window seal repair. But, it's better to call an experienced window repair service to complete the task. They can seal the windows to restore their insulating and energy efficient properties and also remove any unsightly condensation that has developed between the glass panes.

Many double glazed windows are covered under warranty which means they can be fixed or replaced without cost to the homeowner. Review the warranty documents that came with your double glazing, or contact the business from which you purchased it to determine if there is any assistance available. Check your home insurance policy for coverage in case of double glazing problems. If you have insurance and you have a claim, it's crucial to make claims promptly to avoid paying unnecessary expenses. You can also contact the local authority's Building Control department for further guidance and assistance.

Glass

Double glazing can have problems. The most frequent issue is misting. This occurs when the seal cracks between two panes and moisture builds up. Fortunately, misted double glass can be fixed without the expense of replacing the entire window. It is possible to fix it by removing the affected glass, blowing air through the gap and forming an airtight seal.

Double-glazed windows can be constructed from a selection of glass. Some of it is simple, such as mirrors or safety glass, which is tempered to improve its strength and safety features. Certain types of glass have coatings applied to enhance their properties. This could include solar control glass which reduces glare and stops heat transfer; extra-clean glass that is stain-resistant and self-cleaning; and chromogenic glass, which changes transparency according to temperature.

Double-glazed units with high efficiency are also available from some manufacturers. These units use glass that is insulated and specially formulated films to maintain the internal temperature, so that heating and cooling systems do not have to be as laborious.

They are often a cheaper option than replacement windows and offer excellent energy savings. However, these units do require regular maintenance because the technology they utilize can wear out over time.

If you spot an issue, it is important to contact the company which sold you the double glazing. Contact them via phone, and then follow-up with a written note or email. This means you'll have proof that you notified them of the issue and that you and the company agreed to fix it. This is crucial if you want to claim any guarantees you may have. Many businesses offer 10 or 20-year warranties, and some offer lifetime warranties.

Frame

The frames that support double glazing are constructed of materials such as plastic and wood which are susceptible to being damaged in a variety of ways. Damaged frames may allow cold air into your home, which could increase your heating costs. Over time, frames may get bent and twisted. It may be necessary to replace them, or at a minimum remove the sand and paint to bring them back to their original appearance.

It is recommended to speak with an expert glazier if you're having problems with the frames on your windows. They have the necessary skills and tools to fix this type of problem. It is possible to carry out some repairs yourself, but it is generally much quicker and less expensive to seek professional advice. A qualified glazier can complete the job properly and you are able to claim any costs.

One of the most common signs that your double glazing requires repairing is condensation building up in between the glass panes. This is usually a sign that the seal between the glass panes has failed and allowed air to get in. This results in the water level dropping and can make your room feel draughty. It is best to get this fixed as soon as possible to avoid recurring problems.

If the window isn't cracked or broken it might not be required to replace it. The frame might be in good condition, so it is more economical to replace the glass inside the window.

Many companies provide same-day double glazing repair services, but it is important to know what you require before asking for the quote. It is not uncommon for sales representatives to try to talk people into buying more expensive repairs than they actually need. It is important to understand what you require and how much it will cost and why you need it in order to spot a high-pressure sales technique.

Double-glazing should be checked every few years to make sure they are in good working order and to avoid issues. It is recommended to get an estimate from a reputable firm when you are looking to repair your double glazing. They will have the expertise and experience to fix your problem quickly.

Locks

If you're looking to fix double glazing or you are getting new windows installed, a reliable tradesperson must install a lock to keep your window secure. As part of your quote your installer should go over the various locking systems available and choose the one that best fits your needs and local crime rate. Espagnolette is a popular option that uses bolts with a mushroom head which are secured behind the frame's locking positions. They are typically used on uPVC but they can also be added to aluminum and wood.

Other locks are made to limit the amount of opening windows. Consider installing a window lock like a Canzak Restriction cable to your casement window. It functions as a door chain lock that can be fitted either on either side of the moving part to stop it from opening up too much. It's also simple to install and is among the few locks that can be used on casements.

For windows with sash with hinges, a hinged wedge lock is an easy fix to stop the lower sash from rising enough to allow an intruder inside. Cut a length of wood to match the width of the channel that operates the lower sash, fit it into the frame, and then affix it to the wall and frame.

You can also add an unlocked lock that is keyed to your casement or sash window. These are stronger than latch locks, and are frequently used together to secure windows. These are located on the outside of windows and can be used on both double and single-hung windows as well as sliding ones.

There are other ways to make double glazed windows more secure, such as adding a shoot bolt locking system that has bolts that are shot from both sides of the frame to create an incredibly robust lock. They are usually offered as an upgrade and are suitable for commercial as well as domestic use.

You should also check that the double glazing contractor is accredited by a reputable trade body, like Checkatrade, to ensure they have the experience and fix knowledge to complete high-quality work and comply with their standards.