Pressure Washing Quote Calculator

Enter the square footage for each surface. You get a job price, estimated hours, chemical use and a quote you can send.

How the numbers work

Each surface is priced by its own rate per square foot because the work differs. Flat concrete with a surface cleaner goes fast, while siding needs a low pressure soft wash and more care around windows and fixtures. The story factor adds time for ladders and extension wands on taller homes. Stain spots are added as a flat fee each.

Time on site uses typical production rates: about 800 square feet of concrete an hour with a 20 inch surface cleaner, 1,000 square feet of siding an hour soft washing, and 250 square feet of deck an hour, plus 45 minutes for setup and breakdown. Change the rates to match your rig and the time line still helps you check that the price pays you per hour.

Measuring fast

Measure driveways as length times width, and break odd shapes into rectangles. For siding, multiply the perimeter of the house by the wall height, then skip large garage doors. Satellite maps work well for driveways and roofs when you cannot visit first.

Questions

How much should I charge per square foot for pressure washing?

Common 2026 ranges are about $0.15 to $0.40 per square foot for flat concrete, $0.25 to $0.60 for house siding soft washing, and $0.35 to $0.75 for decks and fences that need extra care. Rates rise with heavy staining, height and access problems.

What is a normal pressure washing job minimum?

Most operators set a minimum of $150 to $250 so travel, setup and cleanup are covered even on a small patio.

How long does it take to wash a driveway?

A typical 600 square foot driveway with a surface cleaner takes 45 to 75 minutes including pre treat and rinse. The calculator uses production rates you can adjust.

Should I charge more for oil stains or rust?

Yes. Spot treating oil, rust or efflorescence uses chemicals and time, so price it as an add on per stain or per area.