Seastack Book

Seastack Book is the all-in-one workforce and bookkeeping app built for trades businesses — plumbing, mechanical, HVAC, electrical, and construction. Run your crew in the field and your books in the office from one place.

FOR THE FIELD
• Dead-zone time clock — crews clock in and out even with no signal; punches sync the moment they're back online.
• Geofenced job sites and automatic break handling for accurate hours.
• Safety, sorted — toolbox talks, site FLHA hazard assessments, and an injury/incident log your crew completes on their phone.
• Field captures, no prices — foremen log work orders and material orders without ever seeing customer pricing.
• Change requests from the jobsite, so extra work never goes unbilled.

FOR THE OFFICE
• Professional invoices with GST + PST by province, recurring billing, and partial-payment tracking.
• Turn field work orders into invoices and material orders into purchase orders with one tap.
• Job costing and labour margins so you know what every job actually made.
• Estimates and multi-option quotes customers can choose from.
• Crew payroll from real clocked hours.

BUILT TO JUST WORK
• Installs like a native app and works offline.
• One-tap Google sign-in.
• Separate logins for owners, office staff, and field crews — everyone sees only what they should.
• Available in multiple languages.

Whether you're a one-truck operator or running multiple crews, Seastack Book replaces the pile of spreadsheets, paper timesheets, and disconnected tools with a single app made for how trades actually work.

Start free and get your crew on the clock today.