Construction Contract

Free Construction Contract Template

A construction contract protects both the contractor and the client by clearly defining scope, payments, timelines, and responsibilities. Download free or generate a custom contract in seconds with AI.

Scope of Work Defined

Clearly documents every task, material, and deliverable so there are no surprises.

Payment Milestones

Progress billing built in — trigger payments at each project milestone.

Legal Protection

Includes change order clauses, warranty terms, and dispute resolution.

Build Your Contract in Seconds

Describe your construction project — scope, timeline, payment terms — and our AI generates a complete, professional contract.

Why You Need a Written Construction Contract

A handshake deal might work for small jobs between friends, but any construction project involving meaningful money needs a written contract. Without one, disputes over scope, payment, or timeline can end up in expensive litigation. A well-written construction contract prevents misunderstandings by setting clear expectations from day one.

For contractors, the contract is your primary legal protection. It proves what you agreed to do, what you were paid to do it, and what happens when things go wrong. For clients, it guarantees the work will be done to specified standards, on time, and for the agreed price.

Key Parts of a Construction Contract

Scope of Work (SOW)

The most important section. It describes every task, material, and standard the contractor must meet. Vague scope is the #1 cause of construction disputes. Be specific: "Install 2x6 exterior walls with R-19 insulation" is better than "framing as per plans."

Timeline and Milestones

Include start date, substantial completion date, and final completion. Link payment releases to milestone achievements. If the project has phases (demo, foundation, framing, finishing), spell out each phase's deadline separately.

Payment Schedule

Fixed-price contracts set the total cost upfront. Cost-plus contracts pay actual costs plus a fee. Progress billing is most common — payments triggered at completion of defined milestones. Always retain 5-10% until final sign-off.

Change Order Process

No construction project goes exactly to plan. The contract must specify how changes are proposed, priced, and approved. Typically: contractor submits written change request → client approves in writing → work begins. Never do extra work without a signed change order.

Warranty and Defects

Specify what the contractor warrants (usually one year for workmanship), what is excluded (owner-caused damage, normal wear), and how defects are reported and remedied.

Insurance and Bonds

Require the contractor to carry general liability insurance and workers compensation. For larger projects, performance bonds protect the client if the contractor fails to complete the work.

How to Use This Template

Our free construction contract template is designed for residential and light commercial projects in the United States. Fill in the parties, project address, scope of work, timeline, and payment terms, then customize the clauses to match your specific situation. For complex projects, consult a construction attorney to review the final document.

You can also use our AI contract generator to create a custom construction contract. Describe your project — type of construction, estimated value, key milestones, payment structure — and the AI will draft a tailored agreement in seconds.

Construction Contract vs. Scope of Work

A Scope of Work (SOW) is part of a construction contract — it defines what work will be done. The full contract adds the legal framework: payment terms, timeline, warranties, insurance requirements, termination clauses, and dispute resolution. If you are comparing bids, having all contractors use the same SOW makes it easy to compare apples to apples.

Frequently Asked Questions

What is a construction contract?
A construction contract is a legally binding agreement between a property owner (or client) and a contractor. It defines the scope of work, materials, timeline, payment terms, and procedures for change orders or disputes on a construction project. Without a written contract, both parties face significant legal and financial risk.
What should a construction contract include?
A comprehensive construction contract should include: parties and project details, complete scope of work, project timeline and key milestones, payment schedule and amounts, material specifications and standards, permit and compliance responsibilities, procedures for change orders, warranty provisions, insurance and bonding requirements, and dispute resolution mechanisms.
How do I handle change orders?
Change orders should be documented in writing and signed by both parties before additional work begins. Each change order must specify the additional or modified work, cost impact, and any timeline extension. Our template includes a dedicated change order clause that makes it easy to document and approve changes without breaking the original contract.
What is a mechanic's lien?
A mechanic's lien is a legal claim against a property by a contractor, subcontractor, or supplier who has been unpaid for work performed. In the U.S., mechanic's lien laws vary by state but generally allow unpaid parties to place a lien on the property. Our template includes provisions that protect both parties in case of payment disputes, including requirements for proper notice and documentation.
How should payment be structured in a construction contract?
Common payment structures include: fixed price (lump sum), cost-plus, or progress billing. Progress billing is most common — the contract specifies milestone payments as work is completed. Our template supports progress billing with clear triggers for each payment. Always include a final payment (retention) of 5-10% until all work is complete and accepted.