Terms of use
Use ProWash Estimator as a planning estimate.
Effective 2026-07-29. By using ProWash Estimator, you agree to these terms.
No professional advice
ProWash Estimator provides general educational information and mathematical estimates. It does not provide accounting, legal, tax, insurance, contract, environmental compliance, or professional estimating advice.
Your responsibility
Calculator results are not bids, contracts, guarantees, or promises of profit. You are responsible for verifying measurements, surface material, production rates, wages, chemical and equipment costs, overhead, local water/runoff rules, and project conditions before using a result.
Accuracy and availability
We work to provide useful tools, but actual costs and labor hours can differ substantially. The website is provided as is without warranties, and availability is not guaranteed.
Acceptable use and contact
You may use the website for lawful personal or business planning. You may not interfere with its operation, attempt unauthorized access, or misrepresent its content as a professionally approved estimate. Questions may be sent to [email protected].
Use expectations
How to use the estimates responsibly
ProWash Estimator provides calculators and educational content for planning. The results depend entirely on the values entered by the user. A calculator result may be too high or too low if measurements, surface condition, production rates, chemical costs, overhead, or site conditions are incomplete.
Users are responsible for checking local water and wastewater requirements, contract language, safety conditions, insurance obligations, licensing rules, and customer expectations before submitting a proposal. The website does not create a contractor-client relationship and does not approve a final bid.
Site content may be updated as methods improve. If a calculation changes, users should review the current page and not rely on screenshots or old copied results as permanent pricing guidance.