Free tools for pool & construction crews.

Simple calculators and templates for the field. No signup, no fluff, works on your phone. Built by people who actually run jobs.

Get your pool's gallons, then exact chlorine, pH, alkalinity, calcium, and stabilizer doses.

Enter job cost and one number you know. See sell price, profit, markup, and margin side by side.

Fill the form, print or save a clean estimate or invoice PDF. Nothing leaves your browser.

Track sub and vendor insurance certificates. Color-coded 30, 14, and 7 day expiration alerts.

Do you need a license where you work? Pick your state for the board and where to apply.