Contract Risk in Construction: Insurance Mistakes Hidden in Common Contract Clauses
Key takeaways
- Many risks in construction are created in the contract, not on-site, and often isn’t visible until a claim arises.
- Contracts frequently push responsibility beyond negligence, creating obligations that standard insurance won’t fully cover.
- Certificates of currency don’t guarantee protection; they only show a policy existed, not what it actually covers.
- Small wording changes like “fit for purpose” or broad indemnities can significantly expand liability without matching insurance.
- Reviewing contracts and insurance together before signing is one of the clearest ways to avoid gaps and unexpected costs later.
Why construction risk is often decided before a project begins
Most construction risk is not created on-site. It’s created on paper, often well before a project begins, and the consequences tend to surface only when a claim is already in motion.
Across the Australian construction sector, contracts based on frameworks published by Standards Australia or developed with guidance from Master Builders Australia are intended to clearly allocate risk between parties. But in reality, they are heavily amended, negotiated under pressure, and reviewed through a legal or commercial lens, with limited consideration of how insurance will actually respond when something goes wrong.
That creates a persistent and costly problem. Risk is accepted in the contract first, then insurance is arranged afterwards to try to match it, but unfortunately, insurance doesn’t work that way. Policies respond to defined events and are bound by conditions that are often narrower than the obligations written into a contract; the gap between the two is where claims are reduced, disputed, and even declined.
This article looks at how common contract clauses create these exposures and what needs to be considered before those risks turn into claims.
Indemnity wording traps: when contracts transfer more risk than insurance can carry
Indemnity clauses sit at the centre of most construction contracts, but they are often taken at face value without fully unpacking what they mean in practice. At a basic level, they require one party to cover another for loss, which can sound like something insurance should handle. The issue is how broadly those clauses are written.
In many cases, indemnities go well beyond fault. “Hold harmless” wording can require a contractor to cover losses even when they have not been negligent, including financial loss, delays, or issues caused by other parties entirely. Phrases like “to the fullest extent permitted by law” can widen that exposure even further, particularly when the types of loss are not clearly defined.
The result is a contractual obligation that sits well outside what a standard policy was designed to cover.
There is also a common assumption that principal indemnities are automatically covered by insurance, but policies commonly restrict upstream cover for principals and principal contractors to negligent acts of the insured and exclude cover for negligence of the principal or principal contractor. If the contract exceeds the language within the insurance policy, part of that risk remains uninsured, often unnoticed.
In simple terms, if an indemnity goes beyond negligence, there’s a strong chance it isn’t fully covered. Checking that wording against the policy is one of the clearest ways to see where the real exposure sits before it turns into a claim.
Duty of care placement: the expansion of liability
In construction, duty of care usually means doing the work with reasonable skill and care, which is what most liability and professional indemnity policies are built around. The change happens when contracts move beyond that and introduce more absolute obligations.
Clauses that refer to “fitness for purpose” or performance guarantees change the nature of the risk entirely. It’s no longer about whether the work was carried out with reasonable care and effort; it is about whether the finished result meets a defined standard, and if it falls short, liability can follow regardless of how the work was actually performed.
In simple terms, if the work fails to fulfil the purpose, the contractor is liable regardless of their efforts.
Most professional indemnity policies aren’t built to respond to guarantees or warranties of that kind, so when contracts introduce those stronger obligations without a corresponding adjustment to cover, the exposure builds in ways that aren’t always easy to see until a claim is being assessed.
This comes up more often now as roles start to overlap. In design-and-construction or project management setups, builders can take on parts of the design responsibility without realising it, simply by coordinating others or relying on consultants and subcontractors.
It often comes down to wording that gets missed. Small terms like “warrant”, “guarantee”, and “fit for purpose” might seem minor, but they can change what is actually covered and what is not.
Subcontractor insurance verification: the false sense of security
Risk transfer through subcontracting is a core part of how construction projects are structured. Contracts usually require subcontractors to carry public liability, contract works, and sometimes professional indemnity insurance, which most think creates a clear chain of responsibility across the project. In reality, that chain is often weaker than most assume.
Certificates of currency are typically collected at the start and then filed away, but they only confirm that a policy existed at a single point in time. They don’t confirm the cover actually meets the contract, what is excluded, or if it stays active for the full job.
We commonly see subcontractor policies that don’t cover the full scope of the work, such as design, working at heights, or hazardous materials. The name on the policy may not match the contract, limits may already be partly used on other jobs, and key parties like the principal or head contractor may not be noted at all.
When that cover doesn’t respond, the risk hasn’t disappeared, but instead, makes its way up the chain to the head contractor, who may have believed it had been transferred, and that belief offers no protection at claim time.
Contract terms versus policy conditions: where good cover becomes unusable
Even when the right insurance is in place, the way a contract is written can limit how that coverage responds, and this is one of the more frustrating problems to deal with because it is entirely avoidable with the right review process in place.
Subrogation
A common example is waivers of subrogation. Contracts may require insurers to give up their right to recover losses from other parties on the project, but not all policies allow this without a specific endorsement. If that waiver is agreed in the contract but not reflected in the policy, it can put the insured in breach of their policy conditions without having done anything obviously wrong.
Example: A head contractor’s contract requires its insurer to waive subrogation against all subcontractors. A subcontractor then causes a fire on-site, and the contract works policy pays for the damage. The insurer would ordinarily recover those costs from the subcontractor, but the contract says it cannot. If the policy was not endorsed to allow that waiver, the insurer may argue its rights were prejudiced and reduce or deny the claim.
Care, custody, and control
“Care, custody, and control” is another area that regularly creates similar issues. Contracts often assign responsibility for materials, works, or client property to one party, but liability policies commonly exclude damage to anything in that party’s direct control. Without the right extensions or separate cover in place, there can be a gap between what the contract says and how the policy responds.
Example: For instance, if a contractor is installing glazing and accidentally cracks the glass panels during installation, the insurer may deny the claim because the panels were under the contractor’s care, custody, and control.
Notification requirements
Construction contracts set strict timeframes for reporting delays, defects, and incidents, while policies require early notice of claims or circumstances that might lead to a claim. If those obligations are not aligned, it is possible to comply with one and still fall short on the other.
Example: For instance, a contractor notices damage during works but delays notifying their insurer while trying to fix it. The insurer may later reduce or deny the claim due to late notification.
Part of the challenge is that there is no standard approach across policies. Contract works and liability cover vary between insurers, and those differences are not always obvious at a high level. When contracts and insurance are handled separately, these conflicts become far more likely to surface at the point they matter most.
What insurers actually look for in contract reviews
From an insurer’s perspective, reviewing a contract is about understanding how risk is being taken on, and how that aligns with what can realistically be insured.
Where risk actually sits in the contract
While standard form contracts provide the base, most of the impactful changes happen in the special conditions. That is where risk is often changed, expanded, or reallocated in ways that are not always obvious at a glance, but can have a significant impact on how insurance responds.
Early involvement gives insurers the opportunity to flag these issues, suggest adjustments, or structure cover to better align with the contract. Once the contract is signed, those options narrow, and the focus shifts to managing the risk that has been locked in.
Don’t assume you’re covered; check the fine print
In construction, the risks that cause the most damage are rarely the obvious ones. They sit in the contract, in clauses that expand responsibility beyond what insurance was ever meant to cover.
Insurance is often treated as a compliance step, but what really matters is how contract terms and policy conditions line up in practice. If that alignment is not considered before signing, it becomes much harder to fix down the track.
Construction businesses that look at contracts and insurance side by side tend to avoid gaps, run into fewer surprises when claims arise, and have a clearer sense of where their exposure sits. It comes down to understanding what’s actually being taken on, and what isn’t.
If your contracts are placing obligations on your business, it’s worth checking how that aligns with your cover. Austcover can help assess the wording, identify gaps, and ensure you’re covered from all angles.
