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Risk Management

6 commercial water damage claims and their impact on business


Commercial water damage can come from a number of sources. Corroded pipes can burst, defective or improperly installed fittings can leak, and heating systems can fail — and all of these can result in major non-weather-related water disasters.


Read our commercial water damage case studies

While any business can suffer from a burst pipe, those with increased risk and the most to lose are typically in commercial real estate (especially high-rises), and in the hospitality and health services industries. It’s critical to understand the risks and safeguard your interests with mitigation measures and the appropriate business insurance to cover you against water damage.

  1. A $3 million USD loss, right before launch

    A new technology project was scheduled to be developed, manufactured, and launched when a frozen pipe burst and destroyed key hardware and a critical development lab. Restoration of the lab took almost a year, and alternative lab space had to be outsourced to reduce schedule delays. In total, the business interruption resulted in a loss of $3 million USD.

    Commercial water damage risks aren’t always visible
    Interior corrosion can be the underlying cause of the pipe defects that make them more susceptible to bursts.

  1. Major leak costs business $6.5 million USD

    The failure of a pressure relief valve coupling in a multi-tenanted high-rise caused water to flow from the 16th story all the way down to the basement. In just an hour, this caused total loss of main electrical bus risers, as well as damage to suites, offices, elevators and interior features in the building, which took six months to repair. The total loss came to $6.5 million USD.

    Even small leaks can cause extensive damage
    250 gallons of water per day can leak from an 1/8” pipe crack.

  1. $4 million USD in damage from hotel’s faulty fitting

    A pipe reducer fitting failed on a water supply line in the 18th floor riser room of a recently-renovated high-rise hotel/apartment complex. Water damage spread to 65 units in the building, as well as to hotel common areas, corridors, the main lobby, electrical risers, and almost all elevators. Lost income and costs associated with rents for displaced tenants and limited hotel room availability totaled $4 million USD.

    Taller and high-value buildings are more at risk
    There is a documented increased incidence in leaks and burst pipe events from taller and high-value buildings.

  1. Hospital patients suffer water emergency

    When a pipe burst on the upper floor of a medical building, over 200,000 gallons (757,082 L) of water cascaded onto several floors below. The incident resulted in the transfer of hundreds of patients — including infants — to neighboring hospitals. It took a full year to repair the damage, and led to a loss of over $4 million USD.

    Protect your business against commercial water damage
    Understand the risks of water damage — and be ready if it ever happens to your business with a proper preparedness plan and the right business insurance.

  1. Education loses steam in pipe freeze

    When a recently-renovated educational building lost steam pressure on an unusually frigid evening, pipes froze in multiple locations. This caused a $4 million USD loss in business income and water damage to classrooms, labs, offices and the mechanical, electrical and plumbing systems.

    Not all pipes are created equal
    Plumbing industry data indicates that “they don’t make pipes like they used to” — new pipe quality is often inconsistent.

  1. HVAC flood leads to lost production cycles

    One threaded coupling on an HVAC-connected water supply line failed in a pharmaceutical manufacturing plant. This caused over 12,000 gallons (45,425L) of water to flood the active ingredient manufacturing area, 10 clean rooms, and special equipment. Production cycles were lost during the extensive clean up and re-validation per regulatory guidelines, costing $4 million USD.

    Regularly service your HVAC
    Because 75% of heaters fail before they are 12 years old, it’s important to replace them regularly to avoid the risk of commercial water damage.

1 Preventing Water Damage: Trends, risks, and mitigation for water leaks, pipe bursts and plumbing issues, Chubb Publication 09-01-0183 (Ed. 1/20)


This document is advisory in nature and is offered as a resource to be used together with your professional insurance advisors in maintaining a loss prevention program. It is an overview only, and is not intended as a substitute for consultation with your insurance broker, or for legal, engineering or other professional advice.

Chubb is the marketing name used to refer to subsidiaries of Chubb Limited providing insurance and related services. For a list of these subsidiaries, please visit our website at Insurance provided by ACE American Insurance Company and its U.S. based Chubb underwriting company affiliates. All products may not be available in all states. This communication contains product summaries only. Coverage is subject to the language of the policies as actually issued. Surplus lines insurance sold only through licensed surplus lines producers. Chubb, 202 Hall's Mill Road, Whitehouse Station, NJ 08889-1600.


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