Pressure Washing Cost Calculator

The rate card behind the calculator

Every default this pressure washing calculator ships with, in one table — so you can check the number rather than trust it.

The three right-hand columns are the base rate multiplied by the condition multiplier (light ×1.0, moderate ×1.2, heavy ×1.5). Hours use separate time multipliers — ×1.0, ×1.25 and ×1.6 — because heavy soiling costs more time than it earns in rate. These are WashCalc's default modelling assumptions, not a market survey; tune them to your own rate card and your own measured production rates.

The one input people get wrong

“Your labor rate” means your cost per hour, not the rate you bill.

The calculator uses that field to work out what the job costs you, and then divides that cost by one minus your target margin to produce a price floor. So the number you put there should be what an hour of crew time actually costs your business — wages plus payroll burden, or your own draw if you run solo — typically somewhere in the $25–$55 range for a small operation.

Enter your billing rate instead and the arithmetic still runs, but it runs on a cost that is roughly double the real one, so the cost-plus floor will win on almost every job and quietly push your quotes above market. If you find the calculator recommending prices far above the published ranges for a surface, this field is the first place to look.

Three quick worked examples

All three at $35 per crew-hour of labor cost, $20 travel, a 50% target margin and a $150 minimum. Enter them above and you will get the same numbers.

The patio is the instructive one. At 500 square feet it is the smallest job of the three, and in heavy condition its rate rises to $0.38 per square foot — yet it still prices close to the fence, because heavy soiling adds 60% to the hours while adding only 50% to the rate. That gap between the time multiplier and the price multiplier is deliberate, and it is why heavily soiled small jobs are the least profitable work most operators take.

For jobs covering more than one surface, this calculator is the wrong tool — it prices a single surface at a time. Use the pressure washing estimate calculator, which takes a line per surface and applies costs, the bundle discount and your minimum once across the whole visit.

Researching a price rather than calculating one?

The cost guides cover ranges, factors and DIY-versus-professional for each surface.

• Driveway pressure washing cost — concrete and asphalt rates, oil staining, and why small driveways cost more per square foot.
• House washing cost — soft-wash pricing, measuring siding area properly, and what a second storey really adds.
• Roof cleaning cost — why pitch matters more than area, and where the DIY case genuinely stops.
• Pressure washing quote template — turn the number into a firm, fixed-price document you can send.
• Pressure washing estimate template — the ranged version, for pricing from photos before you have measured.