STrOp
LearnUpdatesRoadmap
Request beta access

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.

2 of 47 articles in Closeout for Finance tagged collections. Clear

StageallBilling4Closeout2
RoleallFinance2Owner1PM2
Topicallcloseout2collections2retainage2substantial-completion2as-builts1billing1california1lien1lien-waiver1mechanics-lien1preliminary-notice1punch-list1stop-notice1

California lien deadlines — preliminary notice, stop notice, mechanic's lien

The three deadlines that protect your right to get paid on a private California project. Miss one, lose the remedy.

BillingCloseoutcollectionsliencaliforniapreliminary-noticestop-notice

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.

BillingCloseoutbillingcollectionscloseoutretainagesubstantial-completion

See STrOp in action

Single-pipeline operations for California specialty contractors — bid through warranty.

Request beta access →
STrOp

Specialty Trade Operations — the operating system for California specialty contractors. Pre-bid through warranty in a single pipeline.

Learn
  • All articles
  • What's new
  • Roadmap
Get started
Request beta access →

© 2026 STrOp. All rights reserved.