Construction Insurance Contract Review Checklist for General Contractors: Required Coverages, Additional Insureds, Ongoing and Completed Operations, Indemnity, Certificates, and Limits

A subcontractor's drywall crew leaves a ladder in a stairwell. Eight months after turnover, a tenant's employee falls, and the injury suit names you, the owner, and the architect. You tender the claim to the sub's carrier, and the adjuster denies it in three weeks: the additional insured endorsement only covered ongoing operations, and the work was finished.

That denial didn't come from bad luck. It came from a contract nobody read closely enough. This construction insurance contract review checklist for general contractors walks through the clauses that decide who pays when something goes wrong: required coverages, additional insured status, ongoing and completed operations, indemnity, certificates, and limits.

The stakes keep climbing in 2026. Juries are awarding larger verdicts, excess carriers are repricing, and certificate forms have changed in ways that hide information you used to see at a glance. If your subcontract templates haven't been reviewed since before the pandemic, they almost certainly contain gaps. The good news is that most of these gaps are fixable with specific language, and you don't need a law degree to spot them.

Your insurance program is only as good as the contracts that sit on top of it. A $10M umbrella means little if your subcontract lets a framing sub carry $500K limits with no additional insured requirement. The claim flows uphill to you, your loss runs get worse, and your renewal premium reflects someone else's mistake.

Contract review matters for three practical reasons:

• Risk transfer only works on paper first. Carriers pay based on policy wording, and policy wording only responds to what the contract required.
• Underwriters read your subcontracts. Many GL carriers now ask for sample subcontract agreements at renewal. Weak flow-down language can trigger higher rates or exclusions.
• Owners are tightening their own requirements. If your prime contract demands completed operations coverage for ten years and you only flow down three years to subs, you're carrying the difference yourself.

The common mistake we see is treating insurance exhibits as boilerplate. A GC will negotiate payment terms for weeks, then attach an insurance schedule copied from a 2017 project. Those older schedules often reference outdated ISO endorsement forms, skip primary and non-contributory language, and say nothing about waivers of subrogation.

This matters because vague contract language tends to get interpreted against the party that drafted it. If you wrote the subcontract and the insurance requirements are ambiguous, a court may read them in the sub's favor. Specific, unambiguous requirements protect you before a claim ever lands.

Every subcontract should specify, at minimum, which policies the sub must carry, the minimum limits, and how long coverage must stay in force. The coverage list itself depends on scope, but some lines belong in every agreement.

General Liability and Workers Compensation

Commercial general liability is the backbone. Your contract should require occurrence-based CGL, not claims-made, written on the ISO CG 00 01 form or its equivalent. Watch for policies with residential exclusions, subsidence exclusions, or contractual liability limitations that gut coverage for exactly the work being performed.

Current 2026 baseline limits for general trades sit at $1M per occurrence and $2M aggregate. High-risk trades like demolition or structural steel typically require $2M per occurrence and $4M aggregate. If you're hiring a roofer or an excavation contractor, don't let them sign the same schedule as a painting sub.

Workers compensation should be statutory, with employer's liability limits of at least $1M each accident, each employee, and policy limit. Require a waiver of subrogation in your favor. One thing to keep in mind: sole proprietors claiming exemption from workers comp are a frequent source of uninsured injury claims landing on the GC's policy, especially in states where misclassified workers get treated as your employees.

Builders Risk vs. Professional Liability

Builders risk covers the physical project during construction: fire, theft, wind, vandalism, and sometimes water damage. Your contract should state who buys it (owner or GC), whether subs are named insureds, and who pays the deductible. A theft claim for stolen copper can cost 1% to 5% above the direct replacement value of the materials due to delays and idle labor (https://sitesecuritysystems.com/construction-site-theft-is-getting-worse-heres-what-the-2026-data-actually-shows/), and it becomes an argument fast if nobody assigned the deductible in writing.

Professional liability is different. It covers errors in design or professional judgment, not physical damage from construction work. Design-build GCs, subs doing delegated design (fire sprinklers, curtain wall, MEP engineering), and anyone stamping drawings should carry it. A CGL policy typically excludes professional services, so a sub designing a faulty sprinkler layout may have no coverage at all without a professional liability policy behind it.

Additional insured status gives you direct rights under your sub's policy. When it's written correctly, the sub's carrier defends you before your own policy ever gets touched. When it's written poorly, you're back to filing on your own coverage and fighting about subrogation later.

Require that additional insured status be granted by endorsement, not just mentioned on a certificate. A certificate stating "GC is additional insured" carries no legal weight if the policy doesn't contain a matching endorsement. Ask for copies of the actual endorsements, and name the specific parties who need coverage: owner, GC, architect, lender, and any others listed in the prime contract.

Ongoing vs. Completed Operations Coverage

This is where the opening scenario went wrong. ISO's CG 20 10 endorsement covers ongoing operations: work in progress. CG 20 37 covers completed operations: liability that arises after the work is done and turned over. You need both.

Construction defect claims, water intrusion, and premises injuries often surface months or years after closeout. Your contract should require completed operations coverage for a defined period after substantial completion, commonly matched to your state's statute of repose. Spell out the duration, and require that the sub maintain coverage for that full window, not just through the end of the current policy term.

Also check the endorsement edition dates. Newer ISO versions limit coverage to "the extent required by the written contract," which means your contract language now directly shapes what the endorsement covers.

Primary and Non-Contributory Language

Primary and non-contributory wording means the sub's policy responds first and won't seek contribution from your policy. Without it, the two carriers may split the loss, and your premium and loss history take the hit. Require the CG 20 01 endorsement or an equivalent, and make sure your contract uses the phrase "primary and non-contributory" explicitly.

Indemnity and insurance work together but aren't the same thing. Indemnity is the sub's contractual promise to pay for losses arising from its work. Insurance is the funding source that backs that promise. A strong indemnity clause from a sub with no assets and weak coverage is worth very little.

Indemnity clauses generally fall into three forms:

1. Broad form: The sub indemnifies you even for losses caused solely by your negligence. Many states void these through anti-indemnity statutes.
2. Intermediate form: The sub indemnifies you for losses except those caused solely by your negligence. More enforceable in most jurisdictions.
3. Limited or comparative form: The sub indemnifies you only to the extent of its own fault. This is increasingly what courts and statutes allow.

The catch is that anti-indemnity laws vary widely by state, and some apply to additional insured coverage too. California, for example, has specific restrictions on indemnity in construction contracts, and residential projects face additional limits. Drafting a broad form clause in a state that prohibits it can void the clause entirely, leaving you with nothing.

Your checklist here should confirm that the indemnity clause matches what your state permits, that it includes a duty to defend (not just indemnify), and that the sub's CGL includes contractual liability coverage for an "insured contract." Without that last piece, the sub's carrier may refuse to fund the indemnity obligation.

Here's what that means for you: indemnity language should be reviewed by counsel familiar with your jurisdiction, and your insurance requirements should be written to back it up. Fusco Orsini & Associates Insurance Services regularly works alongside construction attorneys to align indemnity clauses with what subcontractor policies actually cover.

Limits that felt adequate five years ago don't hold up against 2026 verdicts. Social inflation, meaning larger jury awards, aggressive litigation funding, and broader theories of liability, has pushed construction claim values well past what primary limits can absorb.

The market reflects it. Excess liability rates for construction rose between 7% and 40% in late 2026, even as property rates softened. That divergence tells you where carriers see the risk: in bodily injury litigation, not in physical damage.

For mid-sized commercial projects, industry guidance now points toward requiring a minimum of $5M to $10M in excess or umbrella limits from GCs, with subs scaled by trade risk. A sub performing high-hazard work on a multi-story project should carry umbrella limits that reflect a catastrophic injury scenario, not a sprained ankle.

Your contract should also require that umbrella policies follow form over the underlying CGL and employer's liability, and that additional insured and primary/non-contributory status extend into the umbrella layer. An umbrella that doesn't recognize you as an additional insured can leave a gap right where the large losses live.

Per Project vs. Per Policy Aggregates

A $2M aggregate sounds like plenty until a sub working on six of your jobs at once burns through it on an unrelated claim across town. Per policy aggregates are shared across every project the sub works on.

Require the CG 25 03 per project aggregate endorsement. It resets the aggregate limit for each designated project, so your job has its own pool of coverage. For larger subs with heavy workloads, this endorsement is often worth more than raising the occurrence limit.

The certificate of insurance is a snapshot, not a contract. It confers no rights and doesn't amend the policy. That said, it's still your first line of evidence, and the 2026 form change makes careful review more important.

The newest ACORD 25 edition (2025/12) is now in standard use, and it includes a new asterisked statement that limits shown may reflect only requested amounts rather than the full policy limits. In practice, brokers can now list only the contractually required limits instead of everything the sub carries. If your sub has $5M in umbrella coverage but your contract only asked for $2M, the certificate may show $2M.

This matters because you may need those additional limits in a severe loss. Update your contract language to require "full available policy limits" for additional insureds, not just the minimums. Otherwise, a carrier can argue your coverage is capped at what the contract demanded.

A solid verification process looks like this:

• Collect the COI and copies of all referenced endorsements before the sub mobilizes
• Confirm policy dates cover the full project schedule plus completed operations
• Match named insureds exactly to the entity that signed the subcontract
• Track expirations and request renewals 30 days before lapse
• Hold payments when certificates lapse, and say so in the contract

Common Red Flags in Subcontractor COIs

Experienced risk managers catch these quickly:

• Name mismatches: "ABC Framing LLC" on the contract, "ABC Construction Inc." on the COI
• Blank or vague description boxes that don't reference the project or required endorsements
• Claims-made CGL policies in place of occurrence-based coverage
• Very new policy effective dates suggesting coverage was bought only to win the bid
• Unfamiliar or non-admitted carriers with no rating information
• Exclusions mentioned in passing, such as "residential work excluded" for a sub on a mixed-use project
  

Many subcontract templates set minimum standards that worked a decade ago. The table below shows where enhanced requirements close real gaps.

The cyber row is new for many GCs. Subs installing building automation, access control, or connected HVAC systems now create network exposure. In 2026, cyber policies have shifted from blanket exclusions to specific sublimits for AI and autonomous agent liability, so check those sublimits if your subs use automated scheduling, estimating, or monitoring tools tied to your systems.

Is a certificate of insurance enough to prove I'm an additional insured? No. The certificate is informational only. You need the actual endorsement from the policy to confirm your status and its scope.

How long should completed operations coverage last? Ideally through your state's statute of repose for construction defects, which runs many years in most states. At minimum, match whatever your prime contract with the owner requires.

What happens if a sub's insurance lapses mid-project? Your contract should let you withhold payment or stop work until coverage is restored. Some GCs also reserve the right to buy coverage and back-charge the sub.

Do I need to check subs' umbrella policies too? Yes. Confirm the umbrella follows form and extends additional insured and primary status. Otherwise you may only have rights in the primary layer.

Why does the new ACORD 25 matter to me? It may show only the limits you asked for, not the full limits available. Require "full available policy limits" in your contracts to protect your access to higher coverage.

Can I use one insurance schedule for every subcontractor? You can start from one template, but adjust limits and coverages by trade. A roofer and a cabinet installer don't carry the same risk.

Contract language decides whose policy pays, so treat the insurance exhibit as seriously as the scope of work. Pull three of your active subcontracts this week and check them against this review checklist: coverage types, AI endorsements for ongoing and completed operations, primary and non-contributory wording, indemnity form, per project aggregates, and the "full available policy limits" phrase the new ACORD form now makes necessary.

Then audit your certificate tracking. Look for lapsed policies, mismatched entity names, and missing endorsement copies. Most GCs find at least one sub working with a coverage gap they didn't know existed.

Fusco Orsini & Associates Insurance Services reviews subcontract insurance requirements, compares them against your owner contracts, and identifies where risk is quietly flowing back to your policy. Contact our team for a contract and coverage review before your next project mobilizes. The time to find the gap is before the claim, not after the denial letter arrives.