These are "normal" window cleaning methods used when reach and wash methods are not practical.
Methods
Ladders are used for work at height along with squeegees, particularly with older or wooden frames that might leak with reach and wash. Also used, of course, indoors so carpets and upholstery do not get wet.
Benefits
Indoor windows can be cleaned
Useful for removing stubborn dirt and stains, i.e. paint
No leaking from older windows or frames
Window Solutions Traditional Method