A missed valve or a fitting buried in a plan note doesn't show up as a line item — it shows up as a margin hit discovered mid-install. Even estimators with decades in plumbing and mechanical say something sneaks past them often enough to matter.
“Been doing plumbing and drainage estimates for donkey's years. Thought I'd seen it all, but now and then a job still manages to sneak something past me.”
“There was a tiny valve and a couple of fittings on the plans that didn't get quoted anywhere. Could've eaten into the margin if I hadn't spotted it.”
How it works
Paste the plan notes or spec sections
Fixture schedules, riser notes, spec sections — whatever the takeoff is based on.
Get flagged gaps against common plumbing and mechanical miss patterns
Small fittings and valves that plans reference but don't schedule.
Quote the full scope, not just what the drawing called out
Catch it before the bid goes out, not mid-install when it's already costing margin.
Next step
Free, runs in your browser, no signup.
Scope Gap ScannerFree
Paste plan notes or spec sections. Flagged gaps, commonly missed items, and code requirements nobody called out.
Related terms
Beyond this page
The tool catches it on one bid. The Estimate Review ($12,000 one-time) finds the pattern across your process.