To dream that you see a window washer means that you are trying to make things clearer. There are some situations that you do not understand properly. The window washer could also mean that you are getting rid of the negative thoughts.
Dream dictionary: window washer dream meanings
In the dream you see a window washer, then this dream shows your ability to understand different circumstances and to impart it to others.
Seeing a woman with a washer means infidelity and/or a peculiar adventure. Dreaming of a window washer represents your ability to clarify a situation and shed some perspective on an issue.