Should each surface be its own line item?

Yes, whenever a job covers more than one surface — house wash, driveway, and deck are priced differently and take different time, so combining them into one number hides what each part actually cost.

Do I need to note the staining or mold surcharge separately?

Yes. It's the difference between the standard per-square-foot rate and the higher rate for heavy buildup, and showing it separately explains why the total is above a simple size-based estimate.

When should pressure washing be invoiced?

On completion, while you're still on-site. It's a same-visit job with no follow-up, so there's no reason to invoice later and add a collection step.

Pressure Washing Invoice Template (Free)

Essential line items on a pressure washing invoice

A professional pressure washing invoice protects your profits by separating square footage surface rates from heavy chemical treatments, plant protection labor, and specialized stain removal:

Business & Licensing Info: Company name, logo, physical address, phone, email, and commercial liability insurance policy number.
Customer & Property Address: Client name, job site address, and service date.
Itemized Surface Cleaning Lines: Separate lines for house siding soft wash, concrete driveway surface cleaning, deck/patio cleaning, and roof soft washing.
Chemical & Stain Surcharges: Heavy mold, black algae (Gloeocapsa magma), lichen, oil stain degreasing, or battery acid stain treatments.
Water Source & Site Prep: Line items or notes specifying water source access (client hose spigot vs. mobile water tank delivery).
Payment Terms & Instant Card Receipt: Due-upon-completion terms with instant driveway credit card processing.

Free Pressure Washing Text Template

Copy and paste the template below to build professional exterior cleaning invoices:

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                    PRESSURE WASHING & SOFT WASH INVOICE
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EXTERIOR CLEANING CO:                      INVOICE DETAILS:
[Your Pressure Washing Business Name]      Invoice Number: PW-2026-0518
[Commercial Insurance Policy #]            Service Date: August 3, 2026
[Phone & Billing Email Address]            Payment Terms: Due Upon Completion (Net 0)

CLIENT & PROPERTY LOCATION:
Client Name: [Homeowner Name]              Property: [654 Cedar Lane]

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SURFACE / SERVICE DESCRIPTION                                  AMOUNT
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1. Vinyl Siding House Soft Wash (2,400 sq ft @ $0.18/sq ft)    $432.00
2. Concrete Driveway & Walkway Surface Clean (900 sq ft)      $225.00
3. Heavy Black Algae & Lichen Surcharge (Roof & Gutter Line)   $75.00
4. Oil Stain Degreaser & Hot Water Treatment (Driveway Bay)    $45.00
5. Landscape & Plant Protection Pre-Soak / Post-Rinse          $0.00 (Included)
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SUBTOTAL:                                                      $777.00
Local Sales Tax (if applicable):                               $0.00
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TOTAL AMOUNT DUE & PAYABLE:                                    $777.00
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PAYMENT STATUS: DUE BEFORE COILING HOSES / DEPARTURE
Accepted Payment Methods: Credit/Debit Card (Driveway Reader), Apple Pay, Cash.
Thank you for trusting us to protect your home's exterior curb appeal!
================================================================================

Square footage pricing benchmarks and soft wash math

Pressure washing profitability requires knowing when to use high-pressure surface cleaners versus low-pressure chemical soft washing:

Vinyl / Stucco House Soft Wash ($0.15–$0.30 per sq ft): Uses low-pressure pumps (under 300 PSI) with sodium hypochlorite (SH) and specialized surfactant soap to kill mold and mildew spores without stripping paint or forcing water behind siding.
Flatwork Concrete Driveways ($0.20–$0.35 per sq ft): Uses high-GPM pressure washers (4–8 GPM) with rotary surface cleaners to eliminate streaking and deep-clean porous concrete.
Roof Soft Washing ($0.35–$0.65 per sq ft): Uses dedicated chemical pumps to apply 4%–6% SH solutions that dissolve dark algae streaks without damaging asphalt shingles.

Why chemical & heavy stain surcharges belong on separate lines

Burying heavy stain removal in a single lumped invoice price causes customer confusion. Itemizing surcharges builds transparency:

Heavy Algae & Lichen Surcharges ($50–$150): Lichen and thick moss roots require pre-treating with concentrated chemical solutions and extended dwell times before washing.
Oil & Grease Hot Water Treatments ($45–$95): Removing automotive oil drips from driveway concrete requires commercial hot water units, industrial degreasers, and stiff scrubbing.
Rust & Fertilizer Stain Neutralization ($60–$120): Orange irrigation rust or fertilizer burn stains require specialized oxalic or acid-based restoration chemicals.

On-site billing workflow: Paid before coiling hoses

Don’t leave a residential property without securing payment:

Pre-Wash Walkthrough: Inspect exterior windows, pre-existing window seal leaks, chipped paint, and delicate landscaping with the homeowner before turning on water valves.
Post-Wash Walkthrough: Walk the property with the client after rinsing to review clean siding and concrete.
Driveway Payment Collection: Present the final digital invoice on your smartphone. Take credit card, debit card, Apple Pay, cash, or Venmo payments directly in the driveway.

If you are setting your square footage rates, read our detailed guide on how much to charge to pressure wash a driveway. To compare driveway invoicing and instant card payment tools, check out our review of the best invoicing app for a solo pressure washing business.