For any house, double glazing is a big investment. It’s only reasonable to wonder how long double-glazed windows will endure in order to determine how much payback you’ll get on your investment. It’s safe to assume that if you invest thousands of pounds on something that will endure for years, you’ll receive your money’s value. On the other hand, if they need to be replaced in a few years, you may feel the purchase has been a waste. We’ll talk about how long double-glazed windows survive, some of the issues that occur with aged double glazing, and how you may make your windows survive longer.

How Long Do Double-Glazed Windows Last?

The longevity of double glazing is determined by a variety of factors, including the strength of the windows and their installation. Cheap double glazing installed by a rookie may need to be replaced in a few years, but quality goods can survive for years. Most double-glazed windows, on the other hand, should last between 20 and 30 years. In many situations, you’ll be given a warranty for the first 10 years or thereabouts, which gives you extra confidence by the assurance that your windows will last at least that long.

Common Issues With Old Double Glazing


You may feel a cold airflow seeping in if the seals around your windows are broken. You could examine this by circling the window with a lighted match or candle and seeing whether the flame moves. Unfortunately, bringing in chilly air also means letting heat out. Inadequate windows may make it more difficult to maintain a pleasant temperature in your house, resulting in higher energy expenditures.

Not Operating Smoothly

Whenever windows become hard to operate, this is another indicator of their age. It’s possible that this is due to normal wear and use, with handles, locks, and other components failing. It’s also possible that anything is forcing your windows to stick.

Condensation On The Inside

When windows aren’t properly adequate, they grow chilly on the inside, which attracts moisture and causes condensation. This is a typical issue with single-glazed windows, but it may also happen with outdated and poor double-glazed windows. This is particularly the case if your home isn’t adequately ventilated and the air is humidified.

How To Make Double-Glazed Windows Last Longer

There are a few things you can do to extend the life of your double glazing. The most effective thing to do is while having them fitted, invest in quality. Buying cheap quality products is only going to result in shorter durability.  You’ll get more out of your windows in the long term if you get high-quality double glazing and have it installed by a reputable provider. You may also do some minor maintenance tasks to maintain your windows in good functioning order over time. For example, silicone caulk may be used to seal gaps around the window frame, preventing draughts and water infiltration. Washing your window frames and spraying them with lubricant on a regular basis will help reduce the danger of them clogging down the road.

If you have any questions regarding double-glazed windows then do not hesitate to get in contact today.