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However high quality your windows and doors are, they still don’t last forever. Sooner or later, they will become less effective and may even start to fail. On average, your windows will last between 15 and 20 years. But how do you know when it’s time to replace them? Chances are, the windows will have begun to fail before you notice, meaning cost implications to your heating bills.

Luckily, there are some warning signs you can look out for to tell when it’s time to change a window.

Windows are leaking

Some double glazed units will lose their seal and need to be repaired over time. This can be identified through condensation appearing on the inside of the glass. Aside from being annoying having to wipe the water away, this can have further health implications through dampness in the home, and can even cause mould to appear around the windows. Windows, where the seal has gone, should be replaced or repaired as soon as possible to avoid lasting damage to the frame and surrounding areas in the home.

Window is difficult to open or close

Aside from anything else, this circumstance is dangerous as it could be slowing down your exit from your home in an emergency. At the very least, it could mean that your window frames have become warped. It is usual for frames to expand and contract as the weather gets warmer and cooler. However, over time, this can lead to the frame not fitting correctly in the aperture which means it’s time to replace the window.

Your energy bills are getting higher

Noticed a spike in your energy consumption? Your windows could be the culprit. If your windows have developed a leak or draft then they will be far less energy efficient than when first installed. This will have a huge impact on your heating bills as, in some cases, it could account for as much as a 25% increase in heating costs.

Finally, if you don’t already have double glazed windows, you really should look at investing in some. Double glazed windows offer greater soundproofing as well as insulation in your home. This leads to reduced heating bills and a warmer home.

Find out how much it will cost to replace your windows with our online window replacement cost calculator.