Gatwick Airport suffered disruption across both terminals on Sunday after a water supply problem linked to a power outage at a local treatment works affected passenger facilities, toilets, and food and drink outlets.
The airport said bottled water was being made available to passengers and staff while contingency measures were put in place. Local supplier SES Water said its water treatment facility was back up and running on Sunday afternoon, although water still needed to be treated before services could return to normal.
The disruption affected Britain’s busiest airport after Heathrow during the summer travel period, when passenger volumes, staffing requirements, airline schedules, and retail operations are all under pressure. Reuters reported that passengers said flushing toilets were not working and restaurants and bars had closed, while the airport said water supplies in both terminals had been affected.
SES Water said: “We now need to treat the water before returning services to normal as quickly as we possibly can.” Gatwick said: “Bottled water is being made available to passengers and staff across the airport and other contingency measures are being put in place to ensure the welfare of our passengers.”
Airport resilience depends on more than air traffic control, runway capacity, baggage systems, and airline staffing. Utilities, treatment works, local grid infrastructure, water pressure, sanitation, food service compliance, cleaning, and passenger welfare all sit inside the operational chain.
Passengers feel the customer experience impact immediately. Lack of working toilets, restricted access to drinking water, closed food outlets, and uncertainty over the duration of disruption can turn an infrastructure failure into a reputational issue within minutes. Airport operators and retailers also face health, safety, staffing, stock, and service level questions.
Airports are complex commercial environments. A single terminal outage can affect airline turnaround times, assistance services, ground handlers, cleaning contractors, shops, restaurants, lounges, logistics suppliers, security flow, and customer communications. Even when flights continue, the wider airport economy can be disrupted if passengers cannot access basic facilities.
Climate and infrastructure shocks have already been putting pressure on operating models. In Climate disruption hits UK businesses, weather and infrastructure disruption were linked to sites, transport, employees, supply chains, and service capacity. Although the Gatwick incident was linked to a treatment works power outage rather than a weather event, the operational pattern is similar: critical dependencies often sit outside the immediate control of the customer facing business.
Large venues need contingency planning for services customers rarely notice until they fail. Water, power, refrigeration, access systems, heating, cooling, connectivity, and waste services are not secondary to the customer journey; they are the conditions under which it can operate.
That challenge has become harder as transport hubs carry more commercial functions. Airports are not only infrastructure assets but retail centres, hospitality sites, logistics nodes, workplaces, and border environments. Each function has its own regulatory and customer expectations, yet all of them depend on the same physical services.
The same risk pattern applies across large commercial estates, hospitals, universities, stadia, distribution hubs, manufacturing sites, and office campuses. Service interruption can spread through tenant operations, employee wellbeing, public safety, and contract performance. Business continuity plans that focus only on IT recovery or evacuation procedures may miss the practical consequences of utility loss.
Clear communication is central during any disruption. Customers need accurate information on available facilities, estimated restoration, alternative services, welfare support, and whether travel plans are affected. Staff need equally clear guidance, particularly where hygiene, food preparation, accessibility, and passenger assistance are involved.
Infrastructure resilience is becoming more public, measurable, and commercially exposed. Passengers can document closed facilities and queues in real time. Retail partners can lose revenue immediately. Regulators, insurers, and commercial counterparties can examine whether contingency arrangements were proportionate.
The Gatwick outage may prove temporary, but it points to a wider operational pressure. Businesses that depend on large sites and high customer flows need a clearer map of external dependencies, stronger welfare contingencies, and scenario planning that treats utilities as part of customer experience rather than back office infrastructure.
