Per Square Foot, Per Job, or Hourly?
Most pressure washers quote one job number. How you get to that number is what separates a profitable bid from a guess.
Before you pick a model, know your floor: the free pressure washing hourly rate calculator works back from your take-home target, overhead, and billable hours to the rate you have to clear.
Price off measured surface area: $0.15 to $0.30 per sq ft for concrete flatwork (driveways, sidewalks, patios); $0.20 to $0.50 per sq ft for house and siding soft washing; $0.30 to $0.70 per sq ft for roofs. Basic light-soil jobs run lower; heavy mold and algae run higher.
Homeowners want one number. $100 to $250 for a standard driveway, $250 to $600 for a single-story house wash. Measure first so a big surface doesn't blow your number - and always hold a minimum.
$50 to $160 per hour depending on solo vs crew and equipment. Use it for heavy oxidation and rust, multi-stage soft washing, and commercial jobs where the scope is uncertain. Most pros quote by the job up front and keep an hourly rate in their back pocket.
Measured the surface? Pressure washing estimating software turns the square footage and rate into a sendable quote before you're back in the truck.