An external flooding emergency is a drainage failure causing water or sewage to flood gardens, driveways, light wells or shared yards. Common causes include blocked external drains, surcharging manholes from combined sewer overflow, and surface water flooding from undersized rainwater systems. Across North London, external flooding affects properties in low-lying parts of Tottenham, Stamford Hill and Wood Green during intense storms. Before the engineer arrives, occupants should keep clear of contaminated water, lift drain covers cautiously to assess flow direction, move outdoor items to higher ground, and document the event. The service includes water extraction, fault identification, temporary control or full fix, and a written report referencing weather and drainage conditions. Buildings insurance typically covers external flooding from drainage failures, although exclusions may apply for surface water events.
External flooding emergency
Emergency response to flooding outside the property, in gardens, drives or shared yards.
