6 inputs. Accurate bid range by region and chemistry tier, chemistry cost breakdown, job duration, crew size recommendation, and NPDES BMP compliance flag. Download a populated PDF bid template ready to send.
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Concrete
Asphalt
EIFS / Stucco
Vinyl Siding
Brick
Painted Metal
Composite Panel
House Wash
Roof Soft Wash
Concrete Clean
Rust Removal
Graffiti Removal
Fleet Wash
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Fill in the form and click Calculate to see your bid range
Bid Range
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Chemistry Cost
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SH Stock (gal)
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Total Labor Hours
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Crew Recommendation
Chemistry Cost Breakdown
SH Stock—
Surfactant—
Services & Materials—
Total Chemistry—
This bid assumes…
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How to bid commercial pressure washing jobs accurately
Commercial pressure washing bids fail for two reasons: labor is underestimated because production rates aren't tracked by surface type, and chemistry cost is ignored until it eats margin. This calculator fixes both by computing bid range from actual production rates per surface (concrete, asphalt, EIFS, vinyl, brick, painted metal, composite) and real chemistry costs by tier.
Why region matters more than most contractors think
Labor is the largest line item on most commercial bids. A 5,000 sqft concrete clean in California costs $85/hr fully-burdened — the same crew in Southeast markets runs $62/hr. That's a 37% swing before a single gallon of SH is mixed. This calculator builds regional labor rates in so your bid reflects your actual cost structure, not a national average that's wrong for your market.
Chemistry cost at commercial scale
At 5,000 sqft of concrete at 2% SH, you're mixing roughly 200 gallons of finished solution — that's 32 gallons of 12.5% stock SH plus surfactant. At $4.25/gal for standard-grade drums, chemistry alone is $136. Miss that number in your bid and your margin is gone before you leave the driveway. The calculator separates SH cost, surfactant cost, and service-specific material costs so nothing gets absorbed into overhead by accident.
What the BMP flag means for your bid
The 🟢/🟡/🔴 BMP flag isn't decorative — it tells you whether your bid needs a formal BMP plan attached. RED-flag jobs (large sqft + high-runoff surface + 3+ story access) require water containment documentation under most NPDES permits. Including a BMP plan in your proposal — and a Certified PAR as a line item — is the single most effective way to differentiate from competitors who submit a number and nothing else.
Compliance pages for your region
California stormwater NPDES requirements apply to virtually all commercial pressure washing jobs. The Runoff Volume Calculator generates a site-specific BMP checklist. The EPA Fine Calculator covers all 51 jurisdictions with property-type multipliers. Both tools feed directly into PAR documentation requirements.