Construction Subcontractor Agreement Template (Free 2026)

A subcontractor agreement is one of the most important documents in construction. It defines the work, protects both parties from disputes, and sets clear expectations for payment, insurance, and liability. Yet many contractors still shake hands and start work without a written contract.

This guide breaks down the 7 critical clauses every subcontractor agreement needs, explains why each matters, and gives you a free template you can use immediately for your next project.

Why You Need a Subcontractor Agreement

Without a written agreement, disputes become expensive and time-consuming. A clear contract:

• Prevents misunderstandings about scope, timeline, and payment
• Protects you legally if disputes arise or work isn't completed
• Ensures subcontractors carry required insurance and bonding
• Clarifies who pays for change orders and how they're handled
• Establishes procedures for resolving conflicts without litigation
• Protects your business and project from liability issues

Clause 1: Scope of Work

This is the foundation of your agreement. It must be specific and detailed. Vague scope language is the #1 cause of disputes between GCs and subs.

What to include:

• Exact description of the work (framing, electrical, plumbing, etc.)
• Materials provided (by GC or subcontractor)
• Project location and address
• Site conditions and existing building code requirements
• Work that is explicitly NOT included
• References to drawings, specifications, and addendums

Why it matters: A sub might interpret "rough electrical" differently than you do. One assumes they're wiring the full building; you assume a specific wing. A detailed scope prevents this $50K misunderstanding before work starts.

Clause 2: Payment Terms and Schedule

Clear payment terms reduce friction and set expectations for cash flow.

What to include:

• Total contract price (fixed, time-and-materials, or unit prices)
• Payment schedule (e.g., 50% on signing, 50% on completion)
• When invoices are due and when payment is due (net 7, net 30, etc.)
• Late payment penalties or interest rates
• Retainage percentage (typically 5-10%)
• Conditions for final payment (inspection, lien waivers, etc.)

Why it matters: Subcontractors cite unpaid invoices as their #1 stress point. Research from Subcontractors.ai GC Ratings shows subs remember GCs who pay late. A clear payment schedule protects your relationship and reputation.

Clause 3: Insurance and Bonding Requirements

Insurance protects everyone. Your project insurance likely has coverage gaps that a sub's policy fills—if they have one.

What to include:

• Minimum liability coverage amounts (typically $1M per occurrence)
• Workers' compensation insurance requirements
• Certificate of Insurance (COI) deadline before work starts
• Your company as "additional insured" on their policy
• Bonding requirements (if applicable to the project)
• Waiver of subrogation (prevents their insurer suing you if something goes wrong)

Why it matters: One uninsured subcontractor accident can expose your company to six-figure liability. Always require proof of insurance before work starts.

Clause 4: Change Orders

Work rarely goes exactly as planned. Your agreement must define how changes are handled to avoid scope creep and payment disputes.

What to include:

• All changes must be in writing and signed by both parties
• Procedure for requesting and approving changes
• Impact on schedule (timeline extensions)
• Impact on price (additional costs or credits)
• Authorization limits (who can approve a $1K change vs. $10K change)
• Timeline for pricing change orders (e.g., within 48 hours)

Why it matters: Without a defined change order process, subs do extra work and expect extra pay. You expect them to absorb it as "part of the job." Clear procedures prevent resentment and disputes.

Clause 5: Dispute Resolution and Mediation

When disagreements happen, a defined resolution process keeps them from becoming lawsuits.

What to include:

• Good-faith negotiation period (e.g., 10 days for both to discuss)
• Escalation to project manager or company leadership
• Mediation requirement before litigation (saves 80% of legal costs)
• Arbitration option (faster than court, private)
• Jurisdiction and venue (your state and county)

Why it matters: Construction litigation can cost $50K+ in legal fees alone. A mediation clause makes both parties try to resolve issues before lawyering up.

Clause 6: Indemnification

This clause determines who covers the cost if something goes wrong on the job. It's complex but critical.

What to include:

• Subcontractor indemnifies you for injuries, property damage, or claims arising from their work
• You indemnify them for claims outside their scope (design flaws, owner negligence)
• Mutual indemnification for violations of law or safety code
• Limits on liability (often tied to contract value)
• Caps on damages (exceptions for gross negligence or willful misconduct)

Why it matters: If a sub's worker falls through improper framing, their indemnity clause typically covers your legal defense and liability. Without it, you're defending yourself.

Clause 7: Termination and Suspension

You need an exit strategy if a subcontractor isn't performing.

What to include:

• Grounds for termination (failure to meet schedule, safety violations, poor quality)
• Notice period (e.g., 3 days written notice for non-performance)
• Cure opportunity (time to fix issues before termination)
• Payment for work completed to date
• Right to suspend work due to weather, lack of materials, or owner delays
• Impact on timeline and cost during suspension

Why it matters: A clear termination clause protects you from being stuck with a sub who isn't delivering while also protecting the sub from arbitrary firing.

Additional Clauses to Consider

Depending on your project, you may also want to include:

• Lien Waivers: Subcontractor waives right to file a lien after payment
• Safety and Compliance: Sub follows OSHA, local building code, and your site safety rules
• Confidentiality: Sub doesn't share project details with competitors
• Non-Solicitation: Sub doesn't hire your other subs or employees without permission
• Entire Agreement: This document is the full agreement; no verbal changes are valid

Red Flags in Subcontractor Agreements

Watch out for these problematic clauses that shift too much risk to you:

• Unlimited liability without caps or exclusions
• Subcontractor refusing to carry insurance or provide COI
• No defined scope or payment terms
• Subcontractor demanding full payment upfront with no retainage
• Overly broad confidentiality or non-compete clauses
• Agreements that don't comply with state construction laws

Legal Compliance by State

Construction contracts vary by state. Some states require specific language around prevailing wage, mechanic's lien rights, and prompt payment. Before using any template:

• Check your state's construction contract requirements
• Review labor and wage laws in your jurisdiction
• Ensure compliance with local licensing requirements
• Consider having an attorney review for your specific state

The Bottom Line

A well-written subcontractor agreement is your best insurance against disputes, delays, and payment problems. Take time to customize a template for your specific project, include all 7 critical clauses, and have both parties review it before work starts. For high-value projects or complex work, always have an attorney review the agreement to ensure it complies with local laws and protects your interests.

The 30 minutes you spend clarifying expectations in writing will save you hours of conflict and thousands in potential disputes down the road.

Related: How to Find Subcontractors in 2026 • 5 Signs a GC Will Pay Late • AI in Construction Bidding