Here in Swindon, and most of southern England, our household tap water is ‘hard’. That means it contains a significant amount of calcium and magnesium – known as hard water deposits or ‘limescale’ – as well as other minerals and impurities.
When you clean your windows using ordinary tap water, these deposits are left behind on the surface of the glass once the water has evaporated, leaving a spotted and streaky finish.
The water we use for window cleaning is thoroughly filtered to remove all impurities, leaving your windows with a spotless crystal-clear finish. A constant flow of pure water is sprayed onto your windows while the brush loosens stubborn dirt and grime, then the window is rinsed clean.
Using pure water means we don’t need to use any detergent, making it the environmentally-friendly option. Also, detergents can leave a residue on windows, which dirt and dust can stick to. Windows cleaned with pure water stay cleaner for longer.