window cleaner
From Longman Dictionary of Contemporary EnglishRelated topics: Cleaning, Occupationswindow cleanerˈwindow ˌcleaner noun [countable] DHCBOsomeone whose job is to clean windowsExamples from the Corpuswindow cleaner• The hearing was told that Mr Gannon, a self-employed window cleaner, died of spontaneous bacterial peritonitis.• The plaintiff window cleaner was instructed by his employers in the sill method of cleaning windows.