What To Expect From Your Grease Exhaust Cleaners (A Picture Guide) This is what you should expect and demand from your cleaning company, do not accept excuses for anything less. Also, check behind the fan blades and filters thoroughly and inspect or demand clear pictures from both directions at every access plate. If you do not have adequate access to visually inspect the entire duct, hire a competent contractor to install them for you. What you do not see could burn down your restaurant! Before and After Picture Guide: After Horizontal ductwork before cleaning Same ductwork after initial gunning After Looking toward fan with excessive Same view looking toward fan after initial cleaning just buildup of carbonized grease before touch up and removal of water After Smaller sized duct with very old buildup Same ductwork after cleaning of grease before cleaning, 2 other companies had just attempted cleaning this system Other Examples: • Grease Exhaust Inspection Guide - Complete Job (Grease Duct Inspection (1.4mb PDF)) • Burger King Inspection Guide (Burger King - Down Stack and Fan Blades (228 kb PDF)) • Solid Fuel (Before and After)