Most modern homes have double glazing. Double glazed windows are great at keeping heat in and reducing energy bills, as well as far more difficult for burglars to break into than single glazed windows. It also looks smart and tends to be far more robust than single glazing.

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Double glazing doesn't last forever, though, and you might have noticed yours starting to look a little worse for wear. Whilst there will be an initial outlay associated with replacing double glazing, the UK's Energy Trust has a handy calculator that can help you work out how much money you could save with efficient double glazing:

How can you tell when it's time to replace your windows?

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If you have noticed condensation appearing between the sheets of glass, this means the seal on your window has started to fail, and you'll need to take action. Your window should last for many years before this becomes an issue, but it is common in older windows. You might first notice it on windows on the side of your house that gets the most sun, whilst windows on the opposite side of your house might end up lasting for several more years.

Even a very small leak can gradually lead to condensation appearing, meaning your double glazing is no longer working as efficiently as it should. Reputable double glazing providers such as Dublin windows and doors companies can supply replacement windows if yours are showing signs of condensation.

Visible damage

Windows to go through a considerable amount of wear and tear over their lifespan, and at some point, it's normal for them to start showing signs of damage. It's true that double glazing is tough and difficult to crack, but accidents can happen and a heavy blow could damage your window beyond repair. Tiny cracks or chips can sometimes be repaired without replacing the entire sheet of glass, but larger cracks will require a whole new window to be installed. Take a look at the services provided by experienced firms such as if you are concerned about damage to your double glazing.

Frames can also be damaged, so keep an eye out for any cracks or chips in the frame, too. Larger cracks can cause droughts, meaning warm air is escaping from your home and you're wasting money on energy.

Published by Sunil Pandey