Open Estimate / Construction estimating

AI writes Plumb.
Plumb gives
the numbers.

Describe the work. AI writes the estimate in Plumb, a readable estimating language. The Plumb engine calculates the cost, schedule and resources.

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From your instructions to the estimate
  1. You define the work

    Scope, quantities, rates and assumptions.

  2. AI writes Plumb

    The estimate is written into project files.

    project.plumb
  3. Plumb calculates

    CostScheduleResources

Files are the estimate.
No estimating database.

The work, rates and assumptions live in readable project files. Inspect them, track changes and keep their history.

ReadableVersionedTraceable

Same inputs. Same rules.
Same numbers.

That’s deterministic calculation. AI authors the estimate; Plumb does the maths. Your team still owns the assumptions.

Run 1 Same resultRun 2 Same result