We specialize in the RO/DI (reverse osmosis/de-ionization). Ultra pure water for windows cleaning and also our high tech equipment can produce high temperature water can be used for extra dirty windows. This method becomes more and more popular mostly due to it’s incontestable advantages like efficiency and safety. We, at HighTech Window Cleaning Chicago are one of the firsts window washing companies in Chicago that offers pure water window cleaning services. If you want to have your windows perfectly cleaned try pure water window cleaning solutions today!