Although not always necessary, the first consideration in the window cleaning process is to remove any loose dirt, dust and debris from the surface of the window using a dry method such as a soft-bristled brush or a microfiber cloth. This is done to prevent scratches on the surface of the window during the cleaning process. Next step is to mix up a cleaning solution that is appropriate for the surface of the window and type of dirt, stains etc. This solution is then applied to the window using a spray bottle or a bucket and an applicator. The solution is then spread evenly over the window surface and then removed using a squeegee, leaving the windows streak-free and clean.