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Case study: a site-development contractor cut ~40 hours a month with a custom AI back office

kjags advisors··3 min read

A commercial site-development contractor recovered about 40 hours a month of back-office work — roughly 635 hours in the first year — after kjags advisors built a custom AI back office around its existing workflows in about ten weeks. Nothing was ripped out and replaced; the AI was wired into the tools and processes the team already used.

The problem

The contractor was running an active portfolio of jobs on spreadsheets and email: status tracked by hand, project documents filed manually, contract terms read one PDF at a time, and vendor receipts coded into accounting one transaction at a time. None of it was broken — it was just slow, and it didn't scale as the job count grew.

What we built

Over about ten weeks we shipped 30+ discrete tools across nine workstreams. The pieces producing time savings today:

What it doesHow it saves time
Job portfolio + billing rollup appReplaces spreadsheet-and-email status tracking across every active job
Document indexing (auto-classifies contracts, COIs, SOVs, specs, drawings, submittals)Auto-files and labels project docs instead of ~5 min of manual filing per file
AI contract-risk analysisExtracts indemnity, retainage, liquidated-damages, and pay-when-paid terms in minutes instead of a line-by-line read
QuickBooks receipt automationTurns a vendor receipt into a coded, job-tagged transaction automatically
Automated daily-report promptingChases the daily field report from every active job so a person doesn't have to
Email ingestion + per-job filingFiles project correspondence to the right job automatically

The result

  • ~40 hours/month of recurring time recovered (~480 hours/year) from tools in active use
  • ~155 one-time hours saved on setup, builds, and analyses
  • ~635 hours of value in year one — conservative, counting only what the team uses today

The honest part

These are conservative estimates of the manual labor each tool replaces, counting only the systems in daily use — not everything that was built. The bigger point isn't a single number: it's that a mid-size contractor got an AI back office wired into its real workflows in ten weeks, and it keeps compounding as more of it gets switched on.

This is what kjags advisors does — custom AI built into how construction companies already work. If your back office runs on spreadsheets and email, book a call.