For main contractors
You post the job. Finding and managing subcontractors should not be a second full-time job.
General contractors and project managers lose weeks sourcing trades, comparing bids, drafting contracts, and chasing sign-offs. Here is where that time goes — and how Constratto gives it back.
Finding qualified subcontractors takes weeks
Contractors spend days calling around, asking for referrals, and vetting tradespeople before a single bid comes in. By the time quotes arrive, project timelines are already slipping.
Post an assignment on Constratto and receive structured bids from vetted subcontractors within hours. Filter by trade, location, and capacity — no more cold calls.
Comparing bids is a spreadsheet nightmare
Bids arrive by email in different formats — some as PDFs, others as text messages. It is nearly impossible to do a fair comparison, and important details get buried or lost.
Every bid follows a structured format. Use weighted scoring to rank proposals by what matters most to your project — price, timeline, environmental credentials, or trade certifications. No more gut-feel decisions.
Contract drafting is slow, expensive, and inconsistent
Most contractors either rely on generic Word templates that miss critical clauses or pay a lawyer every time. Either way, contracts vary from job to job, creating legal and operational risk.
Constratto generates a ready-to-sign contract directly from the accepted bid. Standard terms are pre-built in; you fill in what is specific to the job. No lawyers needed for routine contracts.
Milestone tracking is manual and error-prone
Tracking which milestones have been completed and which sign-offs are still pending requires constant back-and-forth — often falling through the cracks.
Define milestones at contract creation. When a subcontractor marks work complete, you approve it in one click. The record is automatically logged and visible to both parties.
Weighted subcontractor selection
Stop choosing on price alone. Score every bid on what your project actually needs.
Constratto lets you define scoring weights before bids come in. Prioritize price on a tight budget, timeline on a fast-track job, or environmental credentials when your client has green procurement requirements. Every incoming bid is ranked automatically against your weights — no spreadsheets, no guesswork.
Price & timeline
The baseline. Set your weight for cost and delivery speed. Bids are scored and ranked the moment they arrive, so you see the frontrunner immediately.
Environmental score
Weight environmental friendliness as a scoring criterion. Subcontractors who attach ISO 14001 certificates, Eco-Lighthouse status, or fleet emission records earn a higher environmental score — giving green operators a measurable edge.
Trade certifications
Factor in formal qualifications and documented experience. Subcontractors upload proof directly to their bid profile. You compare credentials alongside price — in one view.
Environmental documentation, right inside the bid
Subcontractors upload proof documents — ISO 14001 certificates, Eco-Lighthouse registration, machinery emission specs, or third-party audit reports — directly to their bid. The documents are stored in a per-bid vault, reviewed by the contractor alongside price and timeline, and carried into the contract record if the bid is accepted. Nothing gets lost in email.
What you get with Constratto
One platform covering the full lifecycle of a subcontract — from bid to handover.
Faster subcontractor sourcing
Days → Hours
Structured bids
No more mismatched formats
Contracts ready to sign
Generated from the accepted bid
Milestone tracking
Clear records for both parties
Document vault per contract
All files, always up to date
Full audit trail
Timestamps on every action
Weighted bid scoring
Price, timeline, and environmental criteria
Environmental documentation vault
ISO 14001, Eco-Lighthouse, fleet records
Related reading
Practical guides for running the tender process.
Ready to run your contracts the right way?
Constratto is free to start for subcontractors. Contractors can post their first assignment today and have bids in before the week is out.