Who to contact during a flood

Sewers and bust water mains

Affinity Water is responsible for sewers in Hillingdon.

Affinity Water asks customers who spot a leaking or burst pipe on a street or pavement to report it directly to them.

You can report a leak online via Affinity Water’s website:

Report a leak to Affinity Water

Alternatively, you can contact their 24‑hour leak line on freephone 0800 714 614.