Contact

Run every project from proposal to final invoice.

BuildStack is the construction operating system for builders and developers. Partners approve from their phone, contracts track what's billed, and drawings are always the latest revision.

Get early access

Proposal → contract → invoice

Every partner votes. Approved bids move to signing and competing bids close automatically.

Invoices checked against contracts

See % billed and what's left on each contract. Invoices with no signed contract get flagged.

Cash flow and HST

Budget vs committed vs paid for each project, plus HST credits by owner company.

Files and drawings

Organized by address, latest revision first. Consultants see drawings only, never money.