Subcontractor Checklist

A subcontractor checklist for prequalifying, onboarding and managing subcontractors.

Published July 8, 2026

Prequalification

Review the subcontractor's relevant trade experience.
Assess financial stability and bonding capacity.
Check references from recent comparable projects.
Review their safety record and incident history.
Confirm crew size and current availability.
Verify required licenses and trade certifications.

Insurance and compliance

Collect a current certificate of insurance (COI).
Confirm general liability and workers' compensation coverage.
Verify coverage limits meet project requirements.
Request additional insured status where required.
Confirm any required performance or payment bonds.
Verify business licensing and tax documentation.
Keep COIs on file and confirm they remain active for the full scope period.

Scope and contract

Write a clear, detailed scope of work.
List inclusions, exclusions and clarifications.
Define quality standards and acceptance criteria.
Set the contract price and payment schedule.
Establish the change-order process and pricing.
Include lien waiver and retainage terms.

Scheduling and coordination

Confirm start dates and durations in the master schedule.
Identify dependencies with other trades.
Define material and equipment responsibilities.
Set milestones and progress checkpoints.
Establish daily reporting and communication channels.
Plan site access, staging and storage for their crew.

Safety and onboarding

Provide a site safety orientation before work begins.
Confirm the sub has a site-specific safety plan.
Verify task-specific training and certifications.
Review PPE requirements for their work.
Include the sub in toolbox talks and safety walks.
Confirm they know hazard and incident reporting procedures.

Performance and closeout

Inspect work against scope and quality standards.
Track progress against the schedule and budget.
Document and resolve any deficiencies or rework.
Confirm punch list items are completed.
Collect warranties and as-built information.
Process final payment and obtain lien waivers.

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A subcontractor checklist is a process for prequalifying, onboarding and managing the trades that perform work on your project. It covers prequalification, insurance and certificates of insurance, scope definition, scheduling and safety so general contractors and project managers can bring subs on board without surprises.

A single unvetted subcontractor can expose you to liability, blow a schedule or create rework that ripples across every trade behind them. A consistent intake process screens out weak partners and sets clear expectations before they ever set foot on site.

This checklist runs from prequalification through onboarding to ongoing management: confirm they are capable and covered, lock down scope and schedule, integrate them into your safety program, and track performance through completion and payment.

Print it for your subcontractor intake binder or keep the PDF on your phone to verify documents on the go. Safety items here are general guidance only and do not replace OSHA regulations, formal training or a competent person's judgment.

FAQ

What is subcontractor prequalification?

Prequalification is screening a subcontractor's experience, financial stability, safety record and references before awarding work. This checklist gives you a consistent set of questions so you can compare subs fairly and reduce project risk.

What is a certificate of insurance (COI)?

A COI is proof of a subcontractor's active insurance coverage, issued by their insurer. Collect it before work starts, confirm limits meet your requirements, and that you are named as additional insured where appropriate.

How do I define a subcontractor's scope of work?

Write a clear, written scope that lists exactly what is included, what is excluded, the standards expected and how it connects to other trades. A precise scope prevents gaps, overlaps and change-order disputes later.

Who is responsible for subcontractor safety?

Subcontractors are responsible for their own crews, but the general contractor coordinates site safety. Integrate every sub into your site safety program; this is general guidance and does not replace OSHA standards or a competent person.

Is this subcontractor checklist available as a printable PDF?

Yes. Print it for your intake binder or download the PDF so project managers can verify documents and track subcontractor onboarding from a phone or tablet.