When Should You Replace Your Double-Glazed Windows?

Windows, especially good quality windows, do have a long life-span. However, they do age and become less efficient over time. It is important to remember that double glazed windows can stop working properly. When this happens it is important to ensure that they are replaced in order to stop cold drafts entering your home. As specialists in aluminium windows and doors, we are here to provide you with all the information you need when it comes to replacing your double-glazed windows. 

How Often Should You Replace Double Glazed Windows

In most cases, the typical lifetime of double glazed windows is around 20 years. However, this may vary depending on factors within your home as well as the quality of the installation and the materials used. 

It is important to ensure that your windows are replaced when the time comes as good quality and efficient windows will help keep your home warmer and quieter. An additional benefit is that it will help reduce energy consumption within your home. 

Additionally, the type of windows you choose will have an effect on how long they last. For example, uPVC windows are known for their strength and longevity.

How To Know When It’s Time To Replace Your Windows 

Cold Drafts and Air 

These are a tell tale sign that your windows are no longer efficient and that they need a replacement. Double glazed windows over time can fail and become less efficient the older they become. If you can feel a draft around your window frames, this may mean that a seal in or around the window has failed or no longer works. 


Another common problem that affects the performance of double glazed windows is condensation. Where condensation can be spotted on the inside facing glass of your double glazed windows, it is likely that there is a ventilation issue. The biggest issue when it comes to condensation occurs when it forms between the two panels of glass. When this happens, it is likely that the double glazing has failed and will need to be replaced. 

Summary – When Should Double Glazed Windows Be Replaced? 

Most double glazed windows have a lifespan of around 20 years before they need to be replaced. However, should you notice any obvious signs that they are not working then you should seek to get them replaced sooner rather than later. Signs may include cold drafts and air entering your home and condensation. It is important to make sure that you get your windows replaced when the time comes. It will help you save on heating bills and will ensure that your home is kept toasty warm over cold winter months. 

Jennyfields – Steel Windows and Doors 

We are a team of experts within the steel window and doors industry. With the years of experience we have, we are confident in our ability to provide you the top quality service you need. We are a trusted family-run business operating with domestic and commercial clients throughout the South East of England for 35 years.  For any questions or further information about our services, get in touch with us. You can call us on 01252 978238 or email us at office@jennyfields.co.uk. Take a look at our steel replacement services and features here.