How to Manage Subcontractor Documentation on a Construction Site

Subcontractor management is fundamentally a documentation problem. Before a sub's workers set foot on your site, you need their insurance certificates. While they're on site, you need their daily work records. When a problem arises — a safety incident, a defect claim, a payment dispute — you need organized records that tell the story clearly.

Most GCs handle sub documentation reactively — chasing COIs when insurance is about to expire, asking for daily reports when an owner requests them, scrambling for documentation when a claim arrives. A proactive documentation system takes 30 minutes to set up per sub and saves hours per project in administrative recovery.

Pre-Mobilization Documentation

Before any subcontractor mobilizes, you need the following on file:

Certificate of Insurance (COI)

Minimum coverage requirements vary by project and contract, but a standard construction sub should carry:

• General Liability: $1M per occurrence / $2M aggregate (minimum; many GCs require $2M/$4M)
• Workers' Compensation: per state statutory limits
• Employer's Liability: $1M per occurrence
• Auto Liability: $1M combined single limit if sub brings vehicles to site
• Umbrella/Excess: $1M–$5M depending on project size

The COI should name your company as an additional insured. Set a calendar reminder 30 days before expiration — don't let a sub work with expired coverage.

Contractor's license

Verify that your sub holds the required state contractor's license for their scope of work. In most states, unlicensed work creates liability for the GC. License verification takes two minutes through your state licensing board's website.

W-9

Required for any sub you'll issue payments to. Collect before the first payment.

Safety program

If your project or contract requires subs to have a written safety program, collect it before mobilization. At minimum, ask about their safety record (EMR, OSHA 300 logs for the past three years) and confirm they have a competent person assigned to your project.

During the Project: Daily Documentation

Sub daily reports

Require each subcontractor to submit a daily report covering: workers on site (names and hours), work completed, materials used, and any issues affecting their work. This gives you the GC's-eye view of what each trade is actually doing, enables you to identify schedule slippage early, and creates a complete project record from all perspectives — not just yours.

The most effective approach: require sub daily reports as a contract condition, specify the format (structured form, not an email), and specify the submission method (your project management system or a shared daily report platform).

ConstruTrack's collaborator role allows subs to submit their own daily reports on your project at no extra cost. Their reports are indexed into your master project record. When you download the daily report PDF, the sub work is included alongside your GC work. No chasing, no consolidation.

Safety compliance documentation

Track sub safety training and certifications for workers performing specialized tasks: fall protection training for workers using personal fall arrest systems, OSHA 10 or 30 cards for required projects, competent person designation for excavation and scaffold work, forklift operator certifications, and lift operator certifications. Many GCs maintain a simple spreadsheet of required certifications and expiration dates per worker.

Inspection and testing results

For any sub work that requires third-party inspection or testing (structural steel welding, MEP rough-in, fireproofing, waterproofing), collect the inspection reports as they're issued. Don't wait until closeout — getting documents after project completion is significantly harder.

Dispute Prevention Through Documentation

Most sub disputes arise from four causes: scope gaps, delay impacts, payment disagreements, and defect claims. Documentation is the cure for all four:

• Scope gaps — your scope exhibits and any scope clarification correspondence need to be organized and accessible
• Delay impacts — daily reports showing when subs were ready to work and what was blocking them
• Payment disagreements — pay applications with backup, lien waiver exchange records
• Defect claims — pre-installation condition photos, inspection reports, sub daily reports describing work performed

A GC who can produce organized documentation on any of these topics within 24 hours of a dispute arising is in an enormously stronger position than one who has to reconstruct events from memory and email threads.

Closeout Documentation

Before releasing final payment, collect from each sub:

• Final conditional lien waiver (on payment)
• As-built drawings (if applicable to their scope)
• Product submittals and approvals
• Operations and maintenance manuals (MEP, equipment)
• Warranty letters (manufacturer and workmanship)
• Punch list completion sign-off

Holding final payment until all closeout documentation is received is standard practice — and the one moment in the project when you have maximum leverage to collect what you need.

ConstruTrack's free plan covers one project with unlimited daily reports — enough to run a complete documentation system for your subs at no cost. Set up your project today.