While many cleaning companies will tell you they don't do windows, that is basically all Alex Harding does. We have an old, two-story house with a lot of windows (give us a great lake view) and for Mother's Day last year, my husband hired Alex to clean all the windows. He did a great job! Whether residential or commercial, he will be happy to clean your windows for you. He does a thorough job so that you can "C. Clear"ly.