If you live in South Florida, pick a pressure washing company that understands...

https://wiki-aero.win/index.php/Why_Do_Roofs_and_Walls_Get_Stained_Faster_in_Coastal_Florida_Than_Other_States%3F

If you live in South Florida, pick a pressure washing company that understands the impact of coastal humidity and salt air. These conditions cause algae buildup that can make sidewalks and storefronts slippery and dull