The Commissioning Window: Where Industrial Insurance Fails Before Operations Begin

An industrial project does not need to be operational to suffer an operational-scale financial loss.


New industrial plant during commissioning and hot testing before operations


That misunderstanding sits at the center of countless Erection All Risks (EAR) placements.

A manufacturer can spend $60 million, $80 million, or more assembling turbines, reactors, conveyor systems, pressure vessels, electrical rooms, and control infrastructure—only to discover during the first energized test that the policy labeled “All Risks” was never built for the most unstable part of the project. Not really.

The dangerous assumption is simple: if the plant is not yet producing, the insurance must still be broad.

In practice, the commissioning window is where broad wording starts to narrow, underwriters start to reinterpret definitions, and expensive technical losses stop behaving like ordinary construction claims.

This is no longer a paperwork issue. In a high-cost engineering market, it is a capital preservation issue.


EAR Is No Longer a Passive Project Policy

For years, many project owners treated EAR insurance as a standard engineering requirement—something purchased at inception, attached to Total Project Value, and left untouched until handover.


Industrial project delay causing insurance repricing and extension risk

That approach is aging badly.

Across recent industrial placements, carriers have become far less comfortable with static underwriting assumptions. Delays in imported components, labor shortages, redesign orders, regulatory hold points, and commissioning extensions mean the original project timeline often becomes fiction halfway through the erection phase.

When that happens, the policy does not simply “continue.”

The risk profile changes, and insurers increasingly price that extension as if they are stepping into a partially unknown project.

A six-month delay now carries more than scheduling frustration:

  • equipment remains exposed on site longer than declared,

  • corrosion and environmental deterioration periods increase,

  • theft and handling frequency rise,

  • and the project may enter seasonal catastrophe exposure that was not contemplated at binding.

The result is familiar in many current submissions: additional premium requests, narrower extension endorsements, or reduced flexibility around testing.

None of this is obvious when the declarations page still says EAR.


The Most Expensive Losses Often Begin During Hot Testing

Industrial assets are relatively predictable when they are sitting still.

They become financially dangerous when electricity, heat, pressure, chemicals, or load are introduced into a system that has never functioned as a single living unit.



That is the commissioning phase insurers worry about, and for good reason.

A pressure imbalance, calibration error, software sequencing fault, valve synchronization issue, or sensor failure can damage multiple integrated components within seconds. Yet this is also the point where many insureds discover that the policy wording they bought for “installation” was never negotiated carefully for “performance.”

This distinction matters more than most buyers realize.

Many EAR forms provide Testing and Commissioning language, but the endorsement is often constrained by:

  • short testing windows,

  • sub-limited hot testing periods,

  • split deductibles,

  • or restrictive causation language once energized systems are involved.

A 30-day testing clause looks harmless during placement.

It looks very different when a delayed automation line needs 90 days of repeated calibration before acceptance.

That is when the first underwriting friction appears: the project still feels unfinished to the owner, but to the insurer the risk has already shifted from passive assembly to dynamic failure exposure.

And dynamic failure is where claims become expensive very quickly.


Insurance adjusters reviewing LEG clause after industrial machinery damage



The LEG Clause Problem Most Buyers Ignore

There is a reason experienced engineering brokers obsess over London Engineering Group wording.

Small differences in LEG language can decide whether a seven-figure commissioning loss becomes a repair claim or a capital hole.

Under LEG 2 wording, the insurer may cover resultant physical damage while excluding the cost of correcting the defective part, defective design element, or defective workmanship that initiated the event.

That sounds manageable in theory.

It rarely is in a complex industrial plant.

When a defective mounting tolerance causes a turbine misalignment, which then destroys bearings, damages control systems, and forces reinstallation, separating “what failed” from “what was consequentially damaged” becomes a forensic argument rather than a straightforward indemnity process.

The insured thinks Replacement Cost applies.

The loss adjuster starts allocating engineering causation.

Those are not the same conversation.

With newer technologies, customized machinery, or prototype process systems, that semantic split can leave the project owner funding redesign costs, upgraded fabrication, and reprogramming expenses outside the main indemnity payment.

This is why stronger LEG 3 wording matters.

But stronger wording is also where many carriers now push back hardest.


The Coverage Vacuum Between “Testing” and “Operational”

Industrial insurance has one particularly dangerous gray zone: the project is no longer a dormant construction site, but it is not yet fully accepted into the permanent property program.


Industrial plant caught between testing coverage and operational insurance

This transitional period is where some of the ugliest disputes live.

EAR wording often terminates at handover, first operational use, or commencement of commercial production.

Those phrases look precise until real commissioning begins.

Modern plants do not switch from “off” to “fully operational” in a clean legal moment. They ramp, pause, recalibrate, discard off-spec output, rerun systems, and sometimes sell limited trial production.

That ambiguity matters.

If trial material enters the stream of commerce, even in a limited way, some insurers may argue the asset has crossed into operational status.

At the same time, the permanent Property or Boiler & Machinery program may not yet be formally triggered because final sign-offs remain incomplete.

The owner then discovers an uncomfortable reality:

the project has machinery operating at full technical stress while policy responsibility is no longer as seamless as the insurance schedule suggested.

This is not a theoretical drafting issue.

This is where eight-figure losses get trapped between two departments inside two different carriers.


Declared Project Values Are Aging Faster Than Underwriting Assumptions

Another weakness hiding inside many EAR placements is valuation drift.

The Total Project Value declared at policy inception often reflects contract assumptions made 12 to 24 months earlier. In the current engineering environment, that can be materially below actual replacement economics by the time a loss occurs.

Specialized steel, electrical systems, imported controls, custom fabrication, emergency freight, and commissioning labor do not behave like stable commodity pricing.

They move.

Sometimes violently.

If the insurer determines that the value at risk at the date of loss materially exceeds the declared insured value, co-insurance pressure can enter the adjustment.

That means the insured is not only dealing with physical damage, but with proportional underinsurance at the exact moment liquidity is already strained.

This issue is particularly brutal because it does not announce itself during placement.

It appears later, during valuation.

By then, the spreadsheet assumptions that looked conservative at inception have become expensive.


Physical Damage Is Often the Smaller Problem

A damaged compressor can be repaired.

A missed revenue launch, extended construction interest, liquidated damages exposure, delayed tax incentives, idle labor contracts, and postponed financing draws can destabilize the economics of the entire project.

This is why Delay in Start-Up protection matters far more than many owners budget for.

Without a properly structured DSU endorsement, the EAR policy may pay for steel and machinery while leaving the balance sheet exposed to the much larger cost of time.

And time, in industrial commissioning, is rarely cheap.

Replacement lead times for custom engineered components can exceed a year. Specialized foreign technicians may not be available on demand. Regulatory reinspection after a thermal event can stop a project long after the damaged hardware is physically replaced.

The insured sees one loss.

The lender sees an interrupted return profile.

Those are two very different emergencies.


Before the First Hot Test, Four Questions Matter

Before energized commissioning begins, every project owner should know:

Industrial project financial losses after commissioning insurance failure

  • How long does hot testing coverage actually last?

  • Which LEG wording governs defective design consequences?

  • Exactly what event terminates EAR and triggers permanent operational insurance?

  • Has declared project value been adjusted for inflation, labor escalation, and emergency procurement reality?

If those answers are vague, the policy is vague where it matters most.

And vague engineering insurance becomes brutally specific only after a loss.

The commissioning phase does not usually create the insurance problem.

It exposes the insurance problem that was already signed months earlier.