Burst water main affecting Llanrumney/St Mellons & surrounding areas of Cardiff, CF3

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Updated: 10:45 04 September 2025

Our teams have worked overnight to fix the burst water main and supply bottled water to over 700 vulnerable customers. The burst water main has now been fixed, and water supplies are now restored due to rezoning and tankering operations.

We are in the process of re-filling the network but this needs to be done carefully and slowly to avoid any further bursts. Some customers may still experience intermittent supply, low pressure or discoloured water as things return to normal. The bottled water stations will remain open this morning.

Bottled water stations are available at:

  • Eastern Leisure Centre, Llanrumney Avenue, CF3 4DN
  • Tesco Supermarket, St Mellons, CF3 0EF

We’d like to apologise for the inconvenience this has caused customers.

More information is available here.

December 2022


Leading up to Christmas we spent some of our time at Food Banks and 'Warm Welcomes' across Wales.

It was very comforting to see households visiting these places receive some 'Christmas time treats' to enjoy, despite current struggles they are facing.

We’d love to hear from you if you would like us attend any events, support groups, warm spaces etc. You can contact us here