Can Misted Windows Be Repaired? A Comprehensive Guide to Fixing Foggy Double Glazing

Misted windows occur when the seal between the two panes of glass in a double-glazed unit fails, allowing moisture to enter and condense inside the window. This can happen for various reasons, such as faulty installation, age, or damage to the window.

Repairing Misted Windows

In some cases, it is possible to repair misted windows without replacing the entire unit. Professional glazing companies can assess the damage and determine if a repair is feasible. The repair process typically involves replacing the failed seal and removing any existing condensation or moisture from between the panes.

However, it’s important to note that repairing misted windows may not always be the most cost-effective solution. In many cases, replacing the entire glass unit is the preferred option for a lasting resolution.

Replacing Misted Windows

If repairing the misted window is not an option or if you’re considering upgrading to more energy-efficient glass, replacing the entire glass unit may be necessary. The cost of replacing misted windows can vary depending on several factors, such as the size of the window, the material of the frame, and the location of the property.

On average, you can expect to pay anywhere from £50 to £350 per window for a replacement. However, it’s important to note that the cost can be higher for properties with older fenestration systems or timber double-glazing, particularly when the units are secured with putty instead of wooden beads.

When replacing misted windows, it’s also a good time to consider upgrading to energy-efficient glass. This can not only improve thermal performance but also potentially result in decreased energy expenses.

Preventive Measures

While repairing or replacing misted windows is important, preventive measures can help extend the lifespan of your windows and prevent future issues. Regular maintenance, such as checking the seals every five years and keeping your home well-ventilated, can help prevent condensation from forming inside your windows.

By taking these preventative measures and addressing misted windows promptly, you can ensure that your home remains comfortable, energy-efficient, and secure for years to come.