I’d never really understood why pure water cleaning could be so much better than traditional cleaning until the Wimbledon Cleaning Company came and did my front windows. They literally sparkled! No residue or drip marks whatsoever. And, Matt the window cleaner, took the time to show me exactly what he was doing and explain why it worked so well.
I never write recommendations, but I was so impressed at how he took so much time to help explain to me the science behind it that I wanted to ensure others know about them!