Our high reach window cleaning service uses 100% pure water to clean your windows and frames, and this is scientifically proven to be the best method of window cleaning as the traditional way using soapy water or clear water can leave your windows with either white spots, or smears and the reason for that is because tap water contains many impurities such as phosphates, calcium, potassium, chloride sodium and nitrates, and these impurities stay on your windows regardless.