Knowledge hub

How do I avoid condensation in my windows?

Your new uPVC windows may or may not be affected by condensation in two areas. It can be inside and outside on the glass. Occasionally you may get condensation forming on the external pane of glass, this means they are working to their full potential, its usually visible on cold clear mornings for instance in frosty weather.

Internal condensation is formed when warm moist air comes into contact with either a surface or air that is colder than it is, the warm air is unable to retain the same amount of moisture as it did and the water is released either into the cold air or onto the colder surface, causing condensation to form.