STrOp · Learn
Practical knowledge for specialty contractors
Compliance, change management, project controls, and the data discipline that compounds across bids. Written for California specialty subs — owners, PMs, estimators, and the field.
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Pay app submission checklist
What goes in a monthly pay application, what the GC's reviewer looks for, and what STrOp assembles automatically.
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PCO vs CO — proposal versus executed change
A PCO is your priced ask. A CO is the executed contract amendment. Until the CO is signed, the work isn't billable on a pay app.
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Retainage release — when, how much, and what to chase
Standard 5–10% withholding through the project, partial release at substantial completion, final release after closeout. The clocks and triggers contractors miss.
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See STrOp in action
Single-pipeline operations for California specialty contractors — bid through warranty.
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