BidBlock is a modular bid builder for specialty trade contractors. Create reusable calculation modules, assemble bids from blocks, and generate professional proposals in minutes.
Build reusable modules for every scope item — door installs, cabinet sets, trim, hardware. Define inputs and formulas once, reuse across every bid.
Organize scope by unit type for multi-unit jobs. Set quantities per type and costs multiply automatically. Perfect for apartments, hotels, and condos.
Define labor, material, and equipment rates in one place. Formulas reference your rate card so prices update everywhere when rates change.
Generate professional proposals with customizable layouts. Line-item detail, module totals, or lump sum — same bid, different views per GC.
Invite estimators and team members with role-based access. Owners, admins, estimators, and viewers — everyone sees what they need.
Two-factor authentication, encrypted passwords, company-scoped data isolation, CSRF protection, and security headers on every request.
No credit card required. Choose Standard or Pro when you're ready to send your first bid.