Free Professional Tools

Free Pressure Washing Calculators & Compliance Tools

15 calculators, diagnostics, and safety tools covering what consultants handwave and operators actually need — compliance readiness, commercial bids, job profitability, soft-wash mix ratios, chemical cost, dwell time, runoff planning, toolbox talks, and regulatory exposure. No login. No paywall. Built for the field.

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JR TM KP SL
  Used by 1,200+ exterior cleaning pros
15
Calculators
12×9
Surface matrix
51
Jurisdictions
PDF
Client-ready outputs
Soft Wash Mix Calculator
Target SH%
2.1%
Batch Size
30 gal
Live Output
SH Stock
Water
Surfactant
$4.20
batch chemical cost
Substrate SAFE
Dwell 8–14 min
19 Free Tools
Get free Field Reference →
Chemistry Mix ratios, dilution, dwell time, surfactant dosing
Operator
Soft Wash Mix Calculator
Drag the SH% slider, enter batch size, pick surface and surfactant — get exact SH stock gallons, water, surfactant oz, batch cost, and safe dwell window in seconds.
Operator
SH Mix Ratio Calculator
C1×V1=C2×V2 dilution math done for you. Enter stock SH%, target mix%, and sq footage — get exact SH gallons, water gallons, surfactant oz, and chemical cost per job.
Operator
Dwell-Time Calculator
12 substrates × 9 chemistries. Adjust for ambient temp, humidity, and sun exposure — get safe dwell windows with substrate damage warnings before you put anything on a surface.
Operator
SH Dilution & Dwell Time Calculator
Enter stock SH%, target application strength, batch size, and surface — get exact SH gallons, water, surfactant oz, and safe dwell windows with substrate warnings. C1V1=C2V2 math, temp + growth modifiers.
Operator
Chemical Cost Calculator
Enter job type, sq footage, SH%, and your supplier prices — get exact SH gallons, surfactant oz, total chemical cost, and cost per sq ft. Margin check at $0.35/sqft. Wallet card for the truck.
Operator
Chemical Incompatibility Checker
Pick any two chemicals — SH, HF, HCl, oxalic acid, ammonia, H₂O₂, F9 BARC, and more. Instant 🔴/🟡/🟢 verdict, reaction product, PPE matrix, and storage guidance. 78 pairings.
Operator
SDS Binder Generator
Build a job-site SDS binder in minutes. OSHA HazCom 1910.1200 + Cal-OSHA §5194 compliant — cover sheet, emergency response, per-chemical quick-ref with PPE icons and SDS links, crew sign-off grid.
Runoff & Compliance NPDES, BMP planning, EPA fine exposure, stormwater risk
🔥 Featured · High Intent
Compliance Readiness Quiz
20 questions across 4 pillars — Chemical Safety, Crew Training, Documentation, Runoff/NPDES. Score 0–40 → % readiness → red/yellow/green band. Top 3 gaps with one-line remediation hooks. Free PDF audit report with per-question breakdown and jurisdiction notes.
PM / Operator
Runoff Volume Calculator
Surface type, sq footage, chemistry, application method, recovery method → contaminated runoff gallons + 🟢🟡🔴 NPDES BMP flag + site-specific BMP checklist. RED flag jobs link to PAR order.
Property Manager
NPDES Water Recovery Calculator
Estimate runoff gallons, required capture percentage, and NPDES risk class (GREEN / YELLOW / RED) for any pressure washing job. Feeds directly into PAR documentation and your compliance file.
Property Manager
PAR ROI Calculator
EPA fine vs. $99 PAR — the commercial decision-maker's math. State fine exposure (low/median/high), CGL pollution exclusion claim data, and cost-per-job comparison across all 3 PAR tiers.
Insurance Broker
EPA Stormwater Fine Calculator
3-scenario EPA fine exposure under 40 CFR 122.41 + state statutes. Covers all 51 jurisdictions with property-type multipliers and repeat-offender escalation. The risk conversation before the loss.
Operator · CA
Cal-OSHA Citation Risk Score
10-question quiz scores your Cal-OSHA exposure in 60 seconds. Maps gaps to specific §3395/§3203/§5194/§3380/§1670/§14300 citations with 2025 fine ranges, employee-band multipliers, and repeat-offender escalation. Personalized remediation PDF.
Bidding & Estimating Bid ranges, vendor scoring, compliance documentation
Operator
Commercial Bid Calculator
6 inputs: sq footage, surface mix, services, chemistry tier, access difficulty, region. Get bid range $low–$high, chemistry breakdown, job duration, crew size, and NPDES BMP flag. PDF bid template, ready to send.
Operator New
Job Cost Calculator — True P&L
12 inputs: job type, SH gallons + price, surfactant oz + cost, crew size, hours, loaded labor rate, drive miles + truck cost, fuel + machine hours, quoted price. Get true COGS, gross margin, effective $/hr, break-even (COGS÷0.55), and recommended price (COGS÷0.40). Red/yellow/green verdict at 40%/55% thresholds.
Operator New
Roof Cleaning Cost & Profit Calculator
Soft wash roof cleaning: your highest-margin service. Select roof type (asphalt, tile, metal, cedar shake), enter sqft, pitch, bio-load severity — auto-calculates SH gallons, pitch-adjusted labor, and overhead. Get true COGS, gross margin, break-even (cost÷0.65), recommended price, and risk flags for SH limits by roof type.
Property Manager
Commercial Bid Scorecard
Score any incoming bid across 4 compliance pillars: Chemical Log & SDS, Photo & GPS Proof, Runoff & BMP Controls, Insurance & Compliance. 12 yes/no questions. 0–100 verdict. Branded PDF for board files.
HOA / PM
RFP Compliance Scorecard
Score a vendor before you award. 10 questions across documentation, chemical safety, stormwater controls, and crew certs. Bronze / Silver / Gold / Platinum tier with a PDF you attach to board minutes.
PM & HOA Tools Vendor vetting, RFP compliance specs, and procurement documentation for property managers and HOA boards
Safety & Training Cal-OSHA compliant crew documentation, toolbox talks, and sign-off records
Business & Legal Contracts, agreements, and compliance documents for subcontractor relationships
Operator New
Subcontractor Agreement Generator
Generate a state-aware subcontractor agreement in 2 minutes. Company name, sub name, service scope, insurance minimums, and contract duration — the tool outputs a 4-page signed-ready PDF with scope of work, payment terms, insurance requirements, termination clause, and Exhibit A. State clauses auto-apply: CA (AB5 + Prop 65), TX (Anti-Indemnity Act), FL (workers comp §440.02). Optional: IP/confidentiality, broad indemnification, compliance certification rider.

See what the outputs look like

Email your results — client-ready PDFs, field wallet cards, and compliance worksheets.

SH Mix Wallet Card v2.1 SURFACE TARGET% SH GAL WATER Vinyl Siding 2.1% 6.3 gal 23.7 gal Concrete 3.0% 9.0 gal 21.0 gal Roof (Shingle) 1.2% 3.6 gal 26.4 gal Wood Deck 0.8% 2.4 gal 27.6 gal Batch Cost: $4.20 · Cost/sqft: $0.014 ● SUBSTRATE SAFE
🧪 Wallet Card PDF — SH Mix Ratio Calculator
Runoff Volume Report ⚠ YELLOW BMP Required CONTAMINATED RUNOFF 847 gallons REQUIRED BMPS ✓ Berms & diversion dikes ✓ Storm drain inlet protection ✓ Sediment filter sock + 2 additional BMPs in full report
💧 BMP Compliance Flag — Runoff Volume Calculator
Commercial Bid Calculator BID RANGE $1,840 $2,210 CHEMISTRY BREAKDOWN SH stock (12% → 3%) 18.4 gal · $36.80 Surfactant (citrus) 22 oz · $8.25 Crew: 2 · Duration: 4.5 hrs ● BMP: GREEN Commercial concrete · SE region · Standard access
💰 Bid Range Output — Commercial Bid Calculator
Who uses SurfaceOps tools
🔧
Pressure Washing Pros
Mix ratios, dwell time, bid building
🏢
Property Managers
Vendor scoring, NPDES risk, compliance docs
🏛️
HOA Boards
Bid scorecards, contractor vetting, board minutes
📋
Insurance Brokers
EPA fine exposure, renewal risk conversations
15
Tools & Calculators
12,000+
Calculator runs
100%
Free to use
PDF
Client-ready outputs
Which calculator do I need?

Find your tools by role

Pick your role — we'll surface the right calculators with a one-line why.

As an owner-operator, your seven tools:

⏱️
Dwell-Time Calculator
Because the answer to "how long on vinyl at 95°F?" should not be a Facebook group guess. Substrate-specific, chemistry-specific, weather-adjusted.
Open →
🧼
Soft Wash Mix Calculator
4 inputs. Drag the SH% slider, enter batch size, pick surface and surfactant — exact recipe + dwell window + safety flag. Wallet card prints in seconds.
Open →
🧪
SH Mix Ratio Calculator
Stop guessing. Enter stock%, target mix%, square footage — get exact gallons every time. Wallet Card for the rig so you're not doing math at the job site.
Open →
💲
Chemical Cost Calculator
Chemical cost is 8–15% of revenue on a well-bid job. Operators who track it to the gallon catch under-bids before signing. Enter your supplier prices and get total cost + cost per sqft.
Open →
📊
Commercial Bid Calculator
Stop guessing commercial prices. 6 inputs → bid range, crew size, job duration, and NPDES flag. Email-gated PDF bid template, ready to send to your prospect.
Open →
☀️
Heat Illness Prevention Plan Generator New
Cal-OSHA T8 §3395 requires a written HIPP at every outdoor jobsite May–Oct. Fine for no HIPP: $15,625/violation. Enter your company info and generate the full compliant plan in under 2 minutes — post it, brief your crew, collect signatures.
Open →
📄
Subcontractor Agreement Generator New
Every 1099 sub you use should be on a signed agreement. Generate a state-aware PDF contract — scope, payment, insurance minimums, termination, Exhibit A — in 2 minutes. CA AB5, TX anti-indemnity, and FL workers comp clauses auto-apply by state.
Open →

As a crew lead, your primary tools:

As a property manager, your five tools:

As an HOA board member, your four tools:

As an insurance broker, your tool:

Want the full compliance system?

Cal/OSHA handbooks, training manuals, HR forms, and everything your crew needs to be litigation-ready — not just policy-compliant.

See bundles & guides →

Planning done. Now document the job.

$99
Single · $249 3-pack · $799 10-pack

Certified Post-Activity Report (PAR)

GPS-stamped, chemical-logged, crew-certified post-job documentation. The certified record that closes stormwater investigations, satisfies vendor audits, and wins commercial contracts.

Order a Certified PAR →
$139
One-time · all digital

Compliance Pro Bundle

Cal/OSHA employee handbook (32 pages), field training manual (49 pages), HR compliance forms, and OSHA chemical safety documentation. Everything your People OS needs to be litigation-ready.

View the bundle →

Which tool for which problem?

Find the right calculator in under 10 seconds — by symptom, not category.

When you're dealing with… Use this tool
"My margins feel thin but I don't know where the money's going" Job Profitability Calculator
"I got a runoff complaint from a property manager after a wash job" Runoff Volume Calculator
"I'm bidding my first commercial contract and don't know how to price it" Commercial Bid Calculator
"A vendor said they're compliant — I want to verify before I sign anything" RFP Compliance Scorecard
"I need to know the safe dwell time for this substrate before I put chemistry on it" Dwell-Time Calculator
"My crew is using SH and I need the right mix ratio for this job" Soft Wash Mix Calculator
"A customer asked about EPA fines — I need to show the actual exposure numbers" EPA Fine Calculator
"I'm not sure my overall compliance posture is solid going into audit season" Compliance Readiness Quiz
"I need a safety tailgate talk for my crew before a chemical-heavy job" Toolbox Talk Generator
"I need a written Heat Illness Prevention Plan for my CA crew this summer" HIPP Generator
"I want to know my chemical cost per job so I can build it into the quote" Chemical Cost Calculator
"Can I mix these two chemicals or is that dangerous?" Chemical Incompatibility Checker
"I need an OSHA-compliant SDS binder for today's job site" SDS Binder Generator
"My crew needs a quick reference card for the truck — dwell times, SH ratios, EPA tiers" Field Reference Pocket Guide

State Compliance Guides

Regulations vary state by state. These guides cover the specific rules, penalties, and employer obligations for heat illness prevention and stormwater compliance in your state — with citations, enforcement examples, and direct links to the tools that close the gaps.

CA · T8 CCR §3395
California Heat Illness
Nation's strictest standard. Written HIPP required, shade at 80°F, up to $25,000/violation.
OR · OAR 437-002-0156
Oregon Heat Illness
Tiered triggers at 80°F, 90°F, and 95°F. Permanent rule enacted 2022.
WA · WAC 296-62-095
Washington Heat Illness
Buddy system required at 100°F. Mandatory rest every 2 hours at 89°F+.
TX · General Duty Clause
Texas Heat Illness
47 federal citations in 2024. No state standard — written HIPP is your defense.
FL · General Duty Clause
Florida Heat Illness
38 citations in 2024. Local heat ordinances preempted; federal enforcement remains.
All 12 States
View All State Heat Illness Guides →
CA, OR, WA, NV, CO, MN, MD, TX, FL, AZ, GA, NC — regulations and enforcement data.
Stormwater Compliance Guides — All 50 States →

Frequently Asked Questions

Are these free?
Yes. All 12 calculators run instantly with no login required. Email-gated PDF outputs (Pocket Card, Wallet Card, NPDES Brief, BMP Compliance Worksheet, Scorecard Report, Fine Exposure Summary, Bid Template) require an email address to deliver. Unsubscribe from any follow-up email with one click.
Do you store my data?
Calculator inputs are stored only when you request a PDF download — at that point your email and inputs are saved so we can send the PDF and relevant follow-up. Anonymous compute sessions are not stored. Email addresses are used for SurfaceOps compliance communications only.
Can I use the PDF outputs in client proposals?
Yes. PDF outputs from the Dwell-Time Pocket Card, NPDES Compliance Brief, and RFP Scorecard Report are formatted for client-facing use. Property managers and HOA boards regularly attach these to vendor files, bid packages, and board meeting documentation. The EPA Fine Exposure Summary is framed as an internal risk assessment — appropriate for internal use or broker conversations.
Do the calculators feed into a Certified PAR?
The Water Recovery Calculator directly informs PAR inputs — specifically the runoff containment method and water recovery documentation that appears in the certified report. The Dwell-Time calculator produces the chemistry and substrate documentation that, once verified in the field, becomes the chemical usage section of a PAR. The calculators are the pre-job planning layer; the PAR is the post-job certified record.
What's the difference between the Runoff Volume Calculator and the Water Recovery Calculator?
The Water Recovery Calculator gives you a quick risk class (GREEN/YELLOW/RED) and estimated runoff gallons for a job type. The Runoff Volume Calculator is more detailed: specific chemistry profile, application method, recovery method — and outputs a site-specific BMP checklist and a signed Compliance Worksheet PDF. Use the Water Recovery Calculator for quick risk assessment; use the Runoff Volume Calculator when you need a compliance file for a specific job.

Calculated. Now certify the job.

Pre-job planning doesn't protect you — post-job documentation does. A certified PAR takes minutes. The risk it covers is measured in tens of thousands.

Order a Certified PAR — $99