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An Agreement Between Owner and Contractor is a legally binding construction contract that governs every material term of a building project between a project owner and a general contractor. It defines the scope of work by reference to plans and specifications, establishes the contract price and pricing structure — lump sum, cost-plus, or guaranteed maximum price — sets the project schedule with milestone dates, and creates enforceable procedures for change orders, progress payments, retainage, and final payment. Beyond price and schedule, the agreement allocates risk through insurance and bonding requirements, warranties on completed work, indemnification provisions, and a defined dispute resolution pathway. This free Word download gives owners and contractors a structured starting point that covers the full project lifecycle in a single executable document.
Without a written construction contract, a project's budget, schedule, and scope exist only as informal understandings — and construction disputes are among the most expensive and time-consuming in commercial law. An owner who starts work on a handshake faces mechanics liens from unpaid subcontractors, no enforceable remedy for delays, and no written basis for disputing extras the contractor claims were verbally authorized. A contractor who mobilizes without a signed agreement has no documented right to progress payments, no change-order process to capture authorized additions, and no warranty limitation protecting against open-ended defect claims. A properly executed agreement between owner and contractor eliminates all four gaps before the first shovel turns — defining who owes what, by when, and what happens when something goes wrong.
| If your situation is… | Use this template |
|---|---|
| Fixed total price for a well-defined scope with minimal unknowns | Lump Sum Construction Contract |
| Scope is uncertain; owner pays actual costs plus a contractor fee | Cost-Plus Construction Contract |
| Flexible scope but with a cost ceiling protecting the owner | Guaranteed Maximum Price (GMP) Contract |
| Smaller trade or specialty work by a single subcontractor | Subcontractor Agreement |
| Design and construction delivered by a single entity | Design-Build Contract |
| Residential remodel or repair under a defined dollar threshold | Home Improvement Contract |
| Ongoing maintenance or service work, not a defined construction project | Maintenance Services Agreement |
Why it matters: Once the contractor mobilizes, the owner loses practical leverage to negotiate scope, price, and terms. Courts may find an implied contract based on the parties' conduct, stripping out protective clauses the owner never formally agreed to.
Fix: Execute the contract and verify required insurance certificates are in hand before the contractor takes possession of the site or orders any materials.
Why it matters: Verbal scope additions generate the most common and expensive construction disputes. Contractors claim extras were owner-directed; owners deny authorizing them. The result is mechanics liens, arbitration, and unplanned cost overruns.
Fix: Include a strict change-order clause requiring written authorization signed by both parties before any changed work begins, and enforce it consistently — even for small additions.
Why it matters: Without an agreed Schedule of Values, there is no baseline for calculating how much of the contract price has been earned at any billing date, making every progress payment a negotiation and creating overpayment risk for the owner.
Fix: Require the contractor to submit a Schedule of Values broken down by CSI division or work category before the first pay application, and attach it as an exhibit to the contract.
Why it matters: Without pre-agreed delay damages, the owner must prove actual losses in litigation — a difficult standard when the project is a future income stream. Contractors frequently miss completion dates when there is no financial consequence for delay.
Fix: Calculate a defensible daily liquidated damages rate — daily carrying costs, lost rent, or lost revenue — and include it in the schedule clause with the substantial completion date.
Why it matters: A certificate of insurance is a snapshot, not a coverage guarantee. Without an endorsement naming the owner as additional insured, a third-party injury claim may not be covered under the contractor's policy.
Fix: Require actual additional-insured endorsements — not just certificates — before the contractor begins work, and confirm the endorsement covers completed operations as well as ongoing work.
Why it matters: Broad indemnification clauses requiring the contractor to indemnify the owner even for the owner's own negligence are void in a majority of US states and several Canadian provinces under anti-indemnity statutes.
Fix: Limit indemnification to losses caused by the contractor's own acts or omissions, or use proportionate-fault language, to ensure the clause is enforceable in the project's jurisdiction.
In plain language: Identifies the owner and contractor as legal entities, describes the project by address and type, and confirms that the parties intend to be bound by the agreement.
This Agreement is entered into as of [DATE] between [OWNER LEGAL NAME] ('Owner'), located at [ADDRESS], and [CONTRACTOR LEGAL NAME], [LICENSE NUMBER] ('Contractor'). The Project is described as: [PROJECT DESCRIPTION] located at [PROJECT ADDRESS].
Common mistake: Using a trade name instead of the contractor's licensed legal entity. If the license is held by an LLC and the contract names the sole proprietor, lien rights and bond claims may fail for misidentification.
In plain language: Defines exactly what the contractor is obligated to build, referencing the plans, specifications, drawings, and addenda that govern the work.
Contractor shall furnish all labor, materials, equipment, and supervision necessary to complete the Work described in Exhibit A (Plans and Specifications dated [DATE]), which is incorporated by reference.
Common mistake: Attaching preliminary or unissued drawings. If plans are revised after signing and the contract references the wrong revision, every change order becomes a dispute about what the baseline scope was.
In plain language: States the total contract price or pricing method, the payment structure (lump sum, cost-plus, or GMP), and the schedule of values used to calculate progress payments.
Owner shall pay Contractor a Lump Sum price of $[AMOUNT] / Cost-Plus fee of [X]% of actual costs / GMP of $[AMOUNT], per the Schedule of Values in Exhibit B.
Common mistake: Failing to attach a Schedule of Values. Without it, progress payment disputes are inevitable because there is no agreed basis for calculating how much of the contract price has been earned.
In plain language: Sets the billing cycle, the format of pay applications, the owner's review and payment window, and the retainage percentage withheld until substantial completion.
Contractor shall submit pay applications on the [X]th of each month. Owner shall pay undisputed amounts within [30] days of receipt. Owner shall withhold [10]% retainage from each progress payment, to be released within [30] days of Substantial Completion.
Common mistake: No payment window for the owner. An open-ended payment obligation gives the owner unlimited float and can starve the contractor's cash flow, triggering subcontractor defaults and project delays.
In plain language: Establishes the notice-to-proceed date, key milestone dates, substantial completion date, and the consequences of delay — including liquidated damages if applicable.
Work shall commence on [START DATE] and Substantial Completion shall be achieved by [DATE]. Contractor shall provide a project schedule within [10] days of execution. If Substantial Completion is not achieved by [DATE] due to Contractor's fault, liquidated damages of $[X] per calendar day shall apply.
Common mistake: No liquidated damages clause for commercial or income-producing projects. Without pre-agreed delay damages, the owner must prove actual damages — a high bar in construction litigation.
In plain language: Establishes the written process for authorizing any change to scope, price, or schedule — preventing verbal or informal changes from creating uncompensated work or disputed extras.
No change to the Scope of Work, Contract Price, or Project Schedule is valid unless documented in a written Change Order signed by both Owner and Contractor before changed work commences.
Common mistake: Allowing the owner or site supervisor to verbally direct additional work. Verbal changes result in claims for extras that the owner disputes because they were never approved in writing.
In plain language: Specifies the types and minimum limits of insurance each party must carry — commercial general liability, workers' compensation, builder's risk — and whether payment and performance bonds are required.
Contractor shall maintain: (a) Commercial General Liability: $[X]M per occurrence / $[X]M aggregate; (b) Workers' Compensation per statutory limits; (c) Builder's Risk in the full replacement value of the Work. Owner shall be named as additional insured on all policies.
Common mistake: Not requiring the contractor to name the owner as additional insured. Without additional-insured status, a third-party injury claim on the jobsite may not be covered under the contractor's policy.
In plain language: States the contractor's obligation to correct defective work discovered after completion, typically for one year, and preserves any longer statutory or manufacturer warranties that flow through to the owner.
Contractor warrants that all Work shall be free from defects in materials and workmanship for a period of [ONE YEAR] from the date of Substantial Completion. Contractor shall correct any defective Work at no cost to Owner within [30] days of written notice.
Common mistake: No mechanism for the owner to notify the contractor of defects. Without a written-notice requirement and correction window, the contractor can argue it never had an opportunity to remedy, voiding the warranty claim.
In plain language: Allocates responsibility for third-party claims and losses arising from the project, typically requiring the contractor to indemnify the owner for claims arising from the contractor's work or personnel.
Contractor shall indemnify, defend, and hold harmless Owner from all claims, damages, losses, and expenses arising out of or resulting from Contractor's performance of the Work, to the extent caused by Contractor's acts or omissions.
Common mistake: Broad mutual indemnification without a proportionate-fault carve-out. In many US states, anti-indemnity statutes void provisions requiring a party to indemnify another for that party's own negligence.
In plain language: Defines conditions and notice requirements for termination by either party, and specifies how disputes are resolved — mediation, arbitration, or litigation — and which jurisdiction's law governs.
Either party may terminate for material breach upon [14] days written notice and opportunity to cure. Disputes shall be resolved by binding arbitration administered by [AAA / JAMS] in [CITY, STATE] under the [CONSTRUCTION INDUSTRY ARBITRATION RULES]. This Agreement is governed by the laws of [STATE / PROVINCE].
Common mistake: No cure period before termination. Immediate-termination provisions that do not allow a reasonable cure period are frequently challenged as improper, exposing the terminating party to wrongful-termination claims.
Enter the owner's full legal name — individual or entity — and the contractor's licensed legal entity name, license number, and state of licensure. For LLCs and corporations, verify the exact registered name against the state business registry.
💡 Ask the contractor for a copy of their license certificate before execution; the name on the license must match the contract party exactly.
Reference the specific revision and date of every drawing, specification, and addendum that defines the scope. List each document by title and revision number so the baseline scope is unambiguous.
💡 Never attach 'design development' or 'for coordination' drawings. Only attach construction documents stamped for permit or issued for construction.
Choose lump sum, cost-plus, or GMP and fill in the corresponding price fields. Delete the inapplicable pricing language. For cost-plus and GMP contracts, attach a detailed Schedule of Values as Exhibit B.
💡 For renovation projects with significant unknowns, a GMP structure protects the owner while giving the contractor flexibility to manage actual field conditions.
Fill in the payment application date, the owner's payment window (typically 14–30 days from receipt of a complete pay application), and the retainage percentage. Specify the retainage release trigger — substantial completion or final completion.
💡 In most US states, prompt payment statutes impose mandatory payment windows and interest penalties for late payment — check your state's statutory deadline before setting a longer window.
Set a realistic substantial completion date and require the contractor to submit a CPM or bar-chart schedule within 10 days of execution. For income-producing properties, calculate a defensible liquidated damages rate based on daily lost revenue or carrying costs.
💡 Liquidated damages must be a genuine pre-estimate of likely harm to be enforceable — setting them punitively high invites a court to strike the clause entirely.
Enter the required coverage types and minimum limits appropriate for the project size. Require certificates of insurance before the contractor mobilizes. Confirm the owner is named as additional insured on CGL and builder's risk policies.
💡 Request endorsements — not just certificates — confirming additional-insured status. A certificate alone does not create coverage; only an endorsement does.
State the warranty duration (one year is standard; some jurisdictions impose longer statutory periods), the written-notice requirement for defects, and the contractor's correction window. Reference any manufacturer or product warranties that pass through to the owner.
💡 Schedule a warranty walk-through at the 11-month mark — one month before the standard one-year warranty expires — to identify and document any latent defects before the window closes.
Select binding arbitration (faster, private, typically lower cost for disputes under $500K) or litigation. Enter the governing state or province. Confirm the chosen forum is consistent with any mandatory arbitration requirements in the applicable jurisdiction or project owner's lender requirements.
💡 If the project is publicly funded or involves a surety bond, check whether the bond form or public contract statute mandates a specific dispute resolution forum before designating arbitration.
An agreement between owner and contractor is a legally binding construction contract that governs every material aspect of a building project — scope of work, contract price, payment structure, project schedule, change orders, insurance, warranties, and dispute resolution. It replaces informal quotes and verbal understandings with enforceable obligations on both sides, protecting the owner's investment and the contractor's right to be paid.
The three primary structures are lump sum (one fixed total price for the defined scope), cost-plus (owner pays actual costs plus an agreed fee or percentage), and guaranteed maximum price (cost-plus with a contractual ceiling). Lump sum works best when plans are complete and scope is well defined. Cost-plus suits projects with significant unknowns. GMP balances flexibility with cost protection for the owner.
Retainage is a percentage of each progress payment — typically 5–10% — that the owner withholds until substantial completion. Its purpose is to ensure the contractor completes all punch-list items before receiving full payment. Most US states have prompt payment statutes that govern maximum retainage percentages and release timelines; confirm your state's rules before setting the retainage rate.
A change order is a written amendment to the original contract that authorizes a change in scope, price, schedule, or all three. It is the only legally sound way to modify a construction contract after execution. Without a signed change order, the owner can dispute extras as unauthorized and the contractor has no written basis for an additional payment claim. Every field change — however small — should be documented with a change order before the work proceeds.
At minimum, a general contractor should carry commercial general liability (typically $1M per occurrence / $2M aggregate for residential, higher for commercial), workers' compensation at statutory limits, and commercial auto if using vehicles. The owner should require builder's risk insurance covering the full replacement value of the work. For larger projects, umbrella/excess liability and professional liability (if design services are included) are also appropriate. Always require the owner to be named as additional insured.
Substantial completion is the point at which the work is complete enough for the owner to occupy or use the project for its intended purpose, even if minor punch-list items remain. It is a critical milestone because it typically triggers retainage release, starts the warranty period, shifts risk of loss to the owner, and begins the statute of limitations on latent defect claims. The date of substantial completion should be documented in a written certificate signed by both parties.
Liquidated damages clauses are generally enforceable in construction contracts when the pre-agreed daily amount represents a genuine estimate of likely harm at the time of contracting and actual damages would be difficult to calculate precisely. Courts typically strike down clauses where the amount is clearly punitive rather than compensatory. To strengthen enforceability, document the calculation basis — daily carrying costs, lost revenue, or financing charges — in the contract or a recital.
A performance bond protects the owner if the contractor defaults and fails to complete the project — the surety either steps in to complete the work or pays the owner's completion costs. A payment bond protects the owner from mechanics liens filed by unpaid subcontractors and suppliers; the surety guarantees those downstream parties will be paid. On federal public projects in the US, both bonds are mandatory under the Miller Act. Many states have similar Little Miller Act requirements for state and local public work.
For projects above $100,000, or any commercial construction with significant schedule, liquidated damages, or bonding requirements, a one-hour legal review — typically $300–$600 — is a sound investment. Construction disputes are among the most expensive and protracted in commercial litigation; a lawyer who identifies a missing anti-indemnity carve-out, an unenforceable liquidated damages clause, or an inadequate insurance provision before execution can save multiples of their fee. For straightforward residential remodels below $50,000, a well-completed template is usually sufficient.
A subcontractor agreement governs the relationship between a general contractor and a specialty trade — electrician, plumber, or framer — not the owner. The owner contract flows obligations down to the GC; the subcontract flows them further to trade contractors. An owner should not contract directly with subcontractors without also having the GC relationship clearly documented.
A home improvement contract is a simplified residential-only agreement suited for repairs, upgrades, and remodeling under a defined dollar threshold. An agreement between owner and contractor handles full construction projects — ground-up builds, major additions, and commercial work — with more detailed provisions for schedule, bonding, GMP pricing, and dispute resolution.
A design-build contract engages a single entity to deliver both design and construction under one agreement, which simplifies coordination but transfers design liability to the contractor. A standard owner-contractor agreement assumes the owner retains a separate architect or engineer and provides completed plans to the contractor. When design and construction are separated, both an architect agreement and a construction contract are needed.
An independent contractor agreement is a general service contract for freelance or consulting work — it lacks the construction-specific provisions that make an owner-contractor agreement enforceable on a building project: mechanics lien waivers, retainage, builder's risk insurance requirements, change-order procedures, and project schedule milestones. Using a generic service contract for construction work creates significant gaps in owner protection.
Fixed-price lump sum structures dominate; statutory right-to-cure periods before homeowner litigation apply in most US states; contractor license and bonding requirements vary by state.
GMP contracts are common on ground-up commercial builds; lender consent to contract terms may be required; AIA document forms are frequently specified by sophisticated owners.
Performance and payment bonds are typically mandatory; extended warranty periods for mechanical and structural systems; commissioning and testing milestones built into the payment schedule.
Landlord approval of plans and contractor often required; tight schedule milestones tied to lease commencement dates make liquidated damages clauses critical; turnkey delivery common.
Contractor licensing requirements vary by state — California, Florida, and Texas have strict license and bond requirements for any contract above a low dollar threshold. Most states have prompt payment statutes setting mandatory payment windows and interest penalties. Anti-indemnity statutes in the majority of states void provisions requiring a contractor to indemnify the owner for the owner's own negligence. Public projects above $150,000 (federal) require performance and payment bonds under the Miller Act; state thresholds vary.
Construction lien legislation exists in every province under different names — Construction Act (Ontario), Builders Lien Act (BC and Alberta) — and imposes mandatory holdback requirements (typically 10%) that must be reflected in the contract's payment terms. Provincial prompt payment legislation (mandatory in Ontario since 2019, phasing in elsewhere) sets statutory payment windows and adjudication rights. Quebec construction contracts must be in French for provincially regulated work and are governed by the Civil Code rather than common law.
The Housing Grants, Construction and Regeneration Act 1996 (as amended) applies to most UK construction contracts and mandates adjudication rights, interim payment provisions, and prohibits pay-when-paid clauses. Contracts that do not include these provisions have statutory terms implied by the Scheme for Construction Contracts. JCT and NEC contract forms are the standard market documents for commercial projects; courts give them considerable interpretive weight.
Construction contract law is primarily governed at the member-state level, with significant variation across Germany, France, Spain, and the Netherlands. The EU Late Payment Directive (2011/7/EU) entitles contractors to statutory interest and compensation for late payment in B2B contracts, and member states have implemented it with varying payment windows. GDPR applies to any personal data of workers or subcontractors processed under the contract. Cross-border projects within the EU should specify governing law explicitly under the Rome I Regulation.
| Path | Best for | Cost | Time |
|---|---|---|---|
| Use the template | Straightforward residential remodels, renovations under $100K with a licensed contractor and well-defined scope | Free | 30–60 minutes |
| Template + legal review | Commercial tenant improvements, residential projects over $100K, or any project with liquidated damages or bonding requirements | $300–$800 for a construction lawyer review | 2–5 days |
| Custom drafted | Ground-up commercial development, projects with institutional lenders, GMP contracts over $1M, or public-private work with statutory bonding | $2,000–$8,000+ | 1–4 weeks |
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