About
Seastack didn't come out of an accounting firm. It came out of a working contractor that was tired of running the business across four disconnected tools.
Why we built it
We were running a mechanical shop on a time-tracker for the crew, one app for invoices, a separate tool for estimates, and a spreadsheet to tie it together. Nothing talked to each other, and Sunday nights disappeared into copying numbers between them.
So we built Seastack to do the whole job in one place — clock the crew in by GPS, turn their hours into invoices, send estimates customers approve online, and keep the books clean automatically. It worked for us, so we opened it up for other shops that were done juggling tools.
What we stand for
Built for crews, jobsites, and owners who are on a roof or under a sink — not sitting at a desk in accounting software all day.
Plain language and a clean interface. If you can text, you can run your invoicing and your books in Seastack.
Every business's data is isolated at the database level. Your crew sees only what they should, and your numbers stay yours.