Hello, assuming you are using professional pressure washing equipment, not those 400 or 500 home type pressure washers, and most professionals are using hot water, esp on houses to help with cleaning of things such as mold and mildew and for a better clean.
A house, in Atlanta, single story 2 or 3 bedroom goes for that 80 to 120 dollar range
For driveways, and flat surfaces, a flat surface cleaner attacked to your pressure washer and using light chemicals will go for about 7 to 10 cents a square foot.
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