AI Preconstruction Software for General Contractors
Piper is the AI operating system for preconstruction. It connects drawings, specifications, addenda, quotes, estimates, and company knowledge so general contractors can generate scopes, level bids, and review risk with every finding linked to its source.

The problem
Too much preconstruction time is spent assembling information, not improving the work
Days are lost finding, extracting, and reconciling information across drawings, specs, addenda, quotes, schedules, and spreadsheets
Historical costs, company standards, and lessons learned remain scattered across files and people
Senior team members cannot personally review every scope, bid, estimate, schedule, and project decision
Late changes and manual reviews create scope gaps, rework, missed dependencies, and margin risk
Piper turns that fragmented process into a repeatable preconstruction system
Workflows
Start with the preconstruction job in front of you
Scope Generation
Turn drawings, specifications, addenda, and company standards into source-backed trade scopes.
Explore Scope GenerationBid Leveling
Compare subcontractor bids against the intended scope so the low number does not hide an expensive gap.
Explore Bid LevelingFinal Bid Review
Review the estimate against the project behind it and focus senior attention on what still deserves judgment.
Explore Final Bid ReviewSurvey
Turn your company's experience into a repeatable survey that captures what the team learns and improves over time.
Explore SurveyHow it works
Turn scattered project information into connected preconstruction work
- 01. Unify the project
Unify the project
Bring drawings, specs, addenda, subcontractor quotes, estimates, and spreadsheets into one connected project context.
- 02. Apply your company knowledge
Apply your company knowledge
Piper combines the live project with your historical data, templates, standards, and expert checks.
- 03. Produce and verify the work
Produce and verify the work
Create and review scopes, bid leveling sheets, estimates, project reviews, and other preconstruction deliverables in your own formats, with every finding linked to its source.

Questions
What general contractors ask
What is AI preconstruction software?
Piper is the AI operating system for preconstruction. It gives general contractor preconstruction teams one evolving understanding of the project by connecting drawings, specs, bids, company knowledge, and live project context.
Is Piper a takeoff or estimating tool?
No. Piper is the AI operating system for preconstruction. It is not a takeoff or estimating calculator, not a document chatbot that only answers questions about project files, and not a collection of disconnected AI point tools.
Does Piper replace estimator judgment?
No. Piper does the extraction, reconciliation, and cross-checking so estimators can spend their time deciding which differences matter. Consequential assumptions and the final number remain estimator decisions.
Piper removes busy work from the critical path and turns the package into decision-ready, source-linked clarity
Protect your margins early
Bring a current or completed project and see how Piper saves review time, surfaces scope gaps, and applies your company's knowledge, with every finding linked to its source. See our Privacy Policy.