SW1A is supplied by
Thames Water
We could not confirm Thames Water’s current status from their own page, so we are not asserting a restriction. Check with your supplier before using a hosepipe.
Check with your supplier
Areas covered: The whole Thames Water drinking-water supply area, covering London, the Thames Valley and the home counties. Customers Thames Water serves for wastewater only, and customers supplied with drinking water by another company, are not affected.
Thames WaterStatus checked yesterdaypage dated 24 July 2026
We are an unofficial tracker, so Thames Water’s own notice is the version that legally applies to you.