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Window cleaning, or window washing, is the cleaning of architectural glass used for structural, lighting, or decorative purposes.

Commercial work is contracted variously from in-person transactions for cash or barter, to formal tender processes. Regulations, licensing, technique, equipment and compensation vary nationally and regionally.

Tools

A window cleaner's bosun's chairand rope descent system

Chamois & Scrim (UK)

Chamois is used to loosen and remove dirt, followed by a buffing with cheesecloth, or scrim.

Water & Squeegee

Generally, chemicals are added to water, and a device such as a brush or cloth-covered handle is dipped into the resulting solution and used to scrub glass. A squeegee is then used to sluice dirt and water mixture from glass.

Water-fed brush

Any of a variety of types of telescopic poles, fitted at the upper end with a brush and water jets, fed by domestic or commercial water outlet.

Access

Where glass is found are window cleaners, and methods of access and equipment related to both access and cleaning vary nationally and regionally.

Ladders

Ladders ranging in size from a single step to the extent (and beyond) of local regulations are used to access windows for cleaning purposes.

Scaffolding

Not to be confused with a suspended work platform, scaffolding means temporary work platforms erected for that purpose.

Aerial Work Platforms

Machines variously configured and powered, designed to deliver workers to otherwise inaccessible areas.

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Suspended Work Platforms

Devices designed for ascent and/or descent of rope or cable by mechanical or motorized worker platforms.

• Boatswain's Chair: A boatswain's chair (contr. bosun's chair) is a single-person work platform designed for abseiling (controlled descent of rope or cable), typically anchored to a roof structure, counterweight configuration, or connecting points designed for the purpose.

• Scaffold: Also called a stage, an access platform for one or more workers with manual or motor driven devices for raising and lowering via rope or cable. Scaffolds may be fitted to high rise buildings or skyscrapers, or assembled from components to suit architecture and nature of work being performed.

Windowsill Access

Direct access to a window obtained by egress from that window. At the Empire State Building in New York City this method is still used.