What Insurers Know About Water Risk That the Construction Industry Doesn’t:
Perspectives from senior leaders at AXA XL, HSB, Allianz, Zurich, Starr, and Polygon
Get the flipbook to learn:
- How underwriters form an opinion of your project before anyone sets foot on site
- What loss control engineers look for during a site visit
- The three categories of water risk on construction sites, and why most mitigation programs address only one of them
- How leading insurers including HSB, Allianz, Zurich, and Starr are formalizing expectations around water controls
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What Insurers Know About Water Risk That the Construction Industry Doesn't
Perspectives from senior leaders at AXA XL, HSB, Allianz, Zurich, Starr, and Polygon on prevention, technology, and where the market is heading.
Contents
The Exposure Is Larger Than the Claim
When water hits a construction site, the claim is just the visible number. The full financial exposure extends well beyond it into schedule delays, secondary damage, and rising deductible exposure.
- Direct costs: Materials, labor, remediation. A single pipe failure at 90% completion can saturate drywall, warp framing, and migrate water between floors before anyone discovers it.
- Secondary damage: Mold, air quality degradation, and structural moisture effects extend the timeline and increase remediation complexity well beyond the original event.
- Schedule delays: Extended loan carrying costs, delayed occupancy revenue, and contractual penalty exposure. Insurance can't restore what a water event does to a client relationship.
- Rising deductibles: Market deductibles have migrated from tens of thousands to $150K–$250K standard, with some projects reaching $500K–$2M. Builders absorb more of the risk than they realize.
The Three Categories of Water Risk
Most mitigation programs focus on only one category. A plan that misses the others leaves meaningful exposure uncovered.
What Insurers Evaluate Before Site Visits
A risk engineering opinion forms at submission, before anyone visits the site. Documenting the water mitigation approach in detail gives underwriters something concrete to credit.
"When those submissions go out, it's critical that the brokers are provided with: we are thinking about utilizing XYZ system, this system will have zones, automatic shutoff. Because somewhere there's going to be an engineer sitting behind a computer like me, looking at the submission and developing an opinion of that risk."
What a strong submission documents:
- The specific technology or system being deployed, named explicitly
- How the system is zoned across the project
- Confirmation that automatic shutoff is included
- A named individual responsible for operating and maintaining the system
- A response protocol: who gets called and what the escalation path looks like
What Loss Control Engineers Look For on Site
Assessment begins before a single document is opened. These signals distinguish an operational plan from one that exists only on paper.
- Site organization: A clean, well-organized job site signals command of schedule and subcontractors, the same discipline that determines whether water mitigation requirements get followed in the field.
- Customized plan: Placeholder text where a named site representative should appear signals the plan has not been implemented.
- Devices installed, not stored: Sensors, monitoring devices, and shutoff valves should be physically installed and operational, not sitting in boxes in the site trailer.
- Automatic shutoff tested: Engineers verify the valve has been tested, responds correctly, and that site personnel know where it is.
- Current call tree: Contact information for the designated site representative should be accurate, not last updated at project kickoff.
- Crew can describe the protocol: Ask a random crew member who they call and how they shut off water if a pipe is leaking right now. Training shows in the answer.
"When things go wrong, that's not the time to learn how to respond. I'd rather deal with it in a controlled environment where we know what could go wrong and can make plans to correct it."
Where Adoption Is Breaking Down
Water monitoring technology is widely recognized as best practice. What loss control engineers also see is consistent patterns in where implementation fails.
"I've seen excellent technologies fail because they weren't implemented well. There was no top-down plan for how we're going to do things or who's responsible. I've also seen really simple things work really well because that human interaction, that human involvement, is there, and people take ownership and run with it."
What Really Moves the Needle
The distinction between technology that changes a risk engineering assessment and technology that merely satisfies a requirement is specific and consistent across all panels.
| Alert-only system | Automatic shutoff system |
|---|---|
| Pipe fails at 2am Saturday | Pipe fails at 2am Saturday |
| Alert goes to superintendent's phone — which is off. Alert goes unanswered. | Shutoff valve closes automatically within minutes. No human response required. |
| Water flows 5–6 hours until crew returns Monday morning. | Water flow stops. Event is logged. Superintendent notified when they wake up. |
| Water migrates across multiple floors. Remediation required. Loss exceeds deductible. | Damage contained to immediate area. Minor repair. Likely within deductible. |
HSB / Munich Re performance data on deployed technology:
How the Insurance Market Is Responding
The insurance model is shifting from reactive pricing to technology-based prevention.
Regulatory frameworks already shaping requirements
Key Takeaways for Risk Managers
- 1Water damage drives $16B+ in annual builders' risk losses. The financial exposure extends well beyond the claim into schedule delays, secondary damage, and rising deductible exposure.
- 2Water risk falls into three distinct categories: intrusion, release, and inundation. Each requires a different technology response. The inundation category is the most consistently underaddressed.
- 3A risk engineering opinion forms at submission, before anyone visits the site. Documenting the mitigation approach specifically gives underwriters something to credit.
- 4Loss control engineers look for customized plans with named owners, devices that are installed rather than stored, and crews that can describe their response protocol without prompting.
- 5Automatic shutoff is the capability that most directly changes loss outcomes. Alert-based systems depend on human response. Shutoff acts autonomously, regardless of when the event occurs.
- 6Including water monitoring technology in contract documents at bid phase is the most reliable way to ensure full deployment. Without a budget line and specification, the cost competes with everything else.
- 7Technology is moving from a pricing factor toward a coverage condition on certain risk classes. Regulatory frameworks in the UK and EU are ahead of the US on mandated requirements.
Based on three panels produced by Wint featuring senior leaders from AXA XL, HSB, Allianz, Zurich, Starr, and Polygon.