I was joking but i can't see how he (Luke) can do it, if you include window cleaning services then professional window cleaners becomes redundant.
I understand what you say, it sounds like a comment, but to me it is a bold self confident comment that would attract customers. Just my opinion.
A logo is supposed to swiftly convey a message, well strictly speaking these aren't logo's in the Nike Swoosh sense of the word, but I found yours a happy accident of style and content.