When should you replace your windows?

Typically, a standard window set will last you between 10 to 15 years. However, when build and design quality is of the highest quality and standards, windows should last more than 20 years and in many cases, far longer.

That said, to ensure your windows continue to do their job, proper care and checks should be carried out. We recommend that you start checking on the health of your windows at around the 10-year mark. In this quick guide, we’ll cover the telltale signs to help you identify when a window should be replaced.

Signs to watch out for

The age of your windows will not always be a good indicator of when a window needs to be replaced. Whilst making a thorough inspection at the 10-year mark is advised, a window may start to show signs of failure much sooner. This could be due to poor quality or excessive use. Keep the following things in mind

Unusually high energy bills

On average, around 20% of your home’s heat energy is lost through your windows & doors. Unfortunately, this number tends to increase when the window is old, damaged or is single glazed.

If you regularly feel the need to use your heating to keep your house warm, even when the weather is mild, it’s a strong indicator that your windows or doors are not thermally efficient. A closed window should not let any perceivable air to flow through your home. If you do feel any draughts entering your home, it is likely time to replace your windows.

Damaged frames

When it comes to window maintenance, many of us forget to consider the health of the window frame. Over time, window frames can become warped – creating an unpleasing aesthetic to your property. However more worryingly, warped frames can cause hinges to become sticky or unable to shut properly. This can lead to many more issues.

Typically, wooden windows are more likely to become warped than uPVC ones. This is because they are far more susceptible to the elements.  Over time, this warping and deformity will negatively affect your homes energy efficiency.


If you have double glazed windows, condensation indicates that the internal and external seals have failed, leading to moisture finding its way between the panes. At this point, the window is no more efficient than a single-glazed window. Although a worn external weather seal can be replaced, internal seals are far more difficult to repair, often meaning the window will need replacing.

Can a damaged window be repaired?

With this said, there are minor issues that can be repaired instead of requiring a full replacement. This could include chipped or discoloured frames and even damaged hardware. When a windows structure is compromised, however, replacement is the only solution.

Lack of security features

Modern windows are now equipped with the latest security technologies. To keep up with ever-changing regulations, they are far more advanced than older windows, which lack features such as mechanical hinges, modern locking systems and secure anti-break-in frames. Security is a key concern for any homeowner, so if your windows aren’t secure, now is the right time to get them replaced.


At Eco-Roof & Wall, we’re committed to providing unbeatable energy efficiency for all areas of your home. Our windows & doors are of the highest quality a will last for years to come. If you are looking to keep warm in the winter and cool in the summer, check out our roof & wall insulation services. Or book a FREE survey today!