Four tools that disagree
General contractors run their money across four tools that disagree: a CRM for leads, a spreadsheet for estimates, a job folder for costs, and an accountant who finds out in March.
One schema, lead to ledger
Contractor OS models leads, estimates, jobs, change orders, purchase orders, bills, expenses, timesheets and invoices as one schema. On top sit a Kanban lead pipeline, priced estimates with e-signature recorded on acceptance, Gantt schedules, and crew timesheets that feed job cost.
Margin you can trust to the cent
Money never touches floating point: integer cents end to end, with quantities at six decimals, so job costing and gross margin land on one rounding step. More in why money should not be a float.
Access for the whole crew
Seven organisation roles — owner, admin, project manager, estimator, accountant, field and viewer — are modelled in the schema, so each person's access matches their job and is enforced below the screens.