Restaurant exhuast cleaning. Its dirty, wet, and mostly night work. My old boss had several cleaning crews (I did maintenance and repair) each crew did 3 jobs a night and averaged $200-$300 per job

You need

Truck with a ladder rack
extension ladder
step ladder
trailer with a steam cleaner and long enough hoses to reach the roof
degreaser and a sprayer
plastic sheeting
stainless steel cleaner
rags