
Pressure Washing Business Bookkeeping: Job Costing by the Square Foot, GPM-vs-PSI Depreciation, and the Two-Story Surcharge You're Skipping
A per-square-foot job costing system for pressure washing operators, with a two-story height factor (1.35x-1.50x), component-level equipment depreciation, and a chart of accounts that shows true gross margin per service line.










