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← All articlesProperty & business interruption · 2026-10-10 · CLEARWISE

Water damage or flooding? The distinction a business must clarify

A practical review of internal pipe leakage, surface water, sewer backup and vulnerable basement stock, with a hypothetical scenario and a contract comparison framework.

A Swiss shop owner in rubber boots inspects shallow water entering under a storefront door after rain; illustrative photograph
Illustrative image

The decision behind the headline

This review focuses on internal pipe leakage, surface water, sewer backup and vulnerable basement stock.

Map the route by which water can enter, not simply the nearest river. A pipe above the storeroom, blocked drainage, an open light well and sewer backup involve different practical controls and potentially different contract definitions. Ask the premises manager which valves can be isolated and whether staff know their location. For leased premises, establish who can authorise immediate work and who maintains shared drainage. Photograph vulnerable stock locations before changing them so that the improvement and remaining exposure can be explained. Keep the drying assessment with the reopening decision.

A hypothetical scenario to test

A ground-floor clinic loses access after heavy rain; equipment upstairs remains intact. This is an invented example, not a reported claim or a promised payout. Reconstruct the sequence from the first sign of trouble to ordinary service resuming. Ask what would happen if the problem occurred during a holiday or at the busiest time of year. The stress test should expose assumptions about availability and timing before they are relied upon.

For the hypothetical clinic, separate damaged property from lost access. If upstairs equipment is intact, replacing machinery may not be the relevant loss. Ask what provision, if any, addresses denied access and which event must cause it. Estimate appointments cancelled, appointments postponed and work transferred elsewhere; those categories should not all be counted as permanently lost revenue. Include cleaning, drying and verification before patients return. A room that looks dry can still need a qualified assessment. The review should connect cause, safety, reopening and financial calculation, rather than conclude that every rain-related closure is a covered flood.

Identify the contractual boundary

Do not infer a cause from the appearance of wet goods. A pipe leak, sewer backup and surface-water entry can look similar after cleanup. Preserve safe photographic evidence and ask a qualified specialist to identify the origin before presenting a definitive cause.

Compare the wording, then the price

Use an identical scenario with each insurer and request clarification of named causes, prevention obligations, site-specific deductibles and access restrictions. Ask for the relevant clause and a written explanation of anything left uncertain. An optional extension should appear in the schedule, not merely in a sales discussion.

Reduce the exposure before transfer

A useful first action is to identify shutoff valves, drainage weaknesses and safe equipment relocation routes. Assign an owner, a completion date and a simple test of whether the measure works. Written procedures matter only if staff can find and use them under pressure.

Evidence and the next review

Prepare premises plans, photographs, local hazard information and maintenance reports. Date the records and keep an accessible copy away from the affected process. Deductible funding and the delay before a payment should sit in the continuity budget. Review the arrangement when your activity, technology, locations or counterparties change.

Sources and further reading

Original Clearwise analysis. External reporting provides context; rules and contract terms must be verified with the competent authority or provider. Some press articles may require a subscription.

Apply this to your situation

Compare your actual documents and clarify what matters before making a commitment.

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General guidance, not a binding quote or personalised legal, tax or investment advice. Examples are hypothetical and results are not guaranteed.

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