Contract Risk: Indemnification, Insurance, and Bonds

Why Risk Allocation Matters in Construction Contracts

Every construction project carries the possibility that something will go wrong: a worker is injured, a subcontractor walks off the job, or faulty work damages a neighboring property. Contracts determine who pays when those things happen. Three legal tools do most of that work: indemnification clauses, insurance requirements, and surety bonds. Understanding all three is essential for anyone managing a project or preparing an estimate, because each tool carries a cost that must be priced into the work.

Indemnification: Shifting the Liability Burden

An indemnification clause is a contractual promise by one party (the indemnitor) to defend, pay judgments for, and hold harmless another party (the indemnitee) against specified claims. Courts and legislatures have recognized three standard forms.

Broad-form indemnification requires the indemnitor—almost always the contractor—to cover losses caused solely by the indemnitee's own negligence. Example language: "Contractor shall indemnify Owner from any and all claims, including those caused by Owner's sole negligence." This form is the most burdensome for contractors and is now prohibited or restricted by anti-indemnity statutes in most U.S. states. When you see it in a contract, flag it immediately for legal review.

Intermediate-form indemnification is the most common type in commercial construction today. The contractor indemnifies the owner for claims arising from the contractor's acts or omissions, including situations where both parties share fault—but not for losses caused solely by the owner's negligence. Most standard AIA and ConsensusDocs forms use intermediate-style language.

Limited-form indemnification (also called proportionate indemnification) is the narrowest. Each party is responsible only for its own share of fault. If the contractor is 70 percent at fault and the owner is 30 percent at fault for an injury, each pays only its proportionate share. This form is required by statute in some states.

When reading a contract, identify the key trigger words: "sole negligence," "any and all," and "proportionate fault" each signal a different form.

Commercial General Liability Insurance

Insurance does not replace indemnification—it funds it. Commercial General Liability (CGL) insurance is the baseline coverage required on virtually every commercial construction project. A CGL policy covers third-party claims for bodily injury and property damage arising from the contractor's operations. Standard coverage is written on an occurrence basis (the policy in force when the incident happens responds) or a claims-made basis (the policy in force when the claim is filed responds).

Project specifications typically require contractors and subcontractors to provide evidence of coverage on an ACORD 25 Certificate of Insurance. Key items to verify on every certificate:

• Policy type and limits – Common minimums on commercial projects include $1,000,000 per occurrence and $2,000,000 general aggregate, though owners frequently specify higher limits. Always compare the certificate limits against the project specification requirements.
• Additional insured status – The owner and general contractor are often named as additional insureds under the subcontractor's policy, so claims against them arising from the sub's work are covered.
• Waiver of subrogation – Prevents the insurer from suing a party that has been relieved of liability by contract.
• Policy expiration date – A certificate showing a policy that expires before project completion is a gap that must be resolved before work begins.

Other coverages commonly required alongside CGL include Workers' Compensation, Employer's Liability, Commercial Auto, and—on larger projects—Umbrella/Excess Liability.

Performance Bonds and Payment Bonds

A surety bond is a three-party agreement among the principal (contractor), the surety (bonding company), and the obligee (owner or project beneficiary). Unlike insurance, a bond is not a risk-transfer mechanism—it is a credit guarantee. The surety promises to fulfill the principal's obligation if the principal defaults, but the surety retains the right to seek reimbursement from the principal afterward.

The AIA A312 document contains two distinct bonds:

• Performance Bond – Protects the owner if the contractor defaults and fails to complete the work. Upon a valid declaration of default, the surety may arrange for completion by another contractor, finance the original contractor to continue, or pay the owner the cost to complete up to the bond amount. The surety first has the right to investigate the claim and select a remedy.
• Payment Bond – Protects subcontractors, suppliers, and laborers who have not been paid. It prevents mechanics' liens on private projects and is required by federal law (the Miller Act) on federal contracts above the statutory threshold. States have their own "Little Miller Act" statutes for state-funded work.

On public projects, performance and payment bonds are frequently mandatory. On private projects, they are negotiated. Bond premiums—typically a percentage of the contract value—must be included in the contractor's bid or estimate.

Safety Considerations

Insurance and bond review is an administrative function, but it directly supports jobsite safety. A subcontractor without current Workers' Compensation coverage exposes the general contractor to liability for injured workers. Always verify certificates before any subcontractor mobilizes. Maintain a certificate tracking log and set calendar alerts 30 days before each expiration. Never allow work to begin or continue when a required policy has lapsed—this is both a contractual default and a potential violation of applicable state Workers' Compensation laws.