Water / sewerage
Burst mains, loss of supply, sewage flooding and major leaks.
Water or sewer emergency?
Report burst mains, loss of supply, sewage flooding, major leaks or water-company infrastructure problems directly to the relevant water or wastewater company. If flooding or a damaged utility creates an immediate danger to life, call 999.
Water-company boundaries are complicated — some addresses have separate suppliers for drinking water and sewerage, and site-specific 'inset' or NAV networks exist. Use the Water UK postcode checker to confirm your supplier before reporting.
Find your water supplier by postcode (Water UK)Water and wastewater companies
| Company | Broad service area | Main incident / operational contact |
|---|---|---|
| Affinity Water | Parts of Hertfordshire, Bedfordshire, Buckinghamshire, north/west London and small Essex/Kent areas — water only | 0345 357 2407 |
| Anglian Water | East of England, parts of East Midlands and Hartlepool — water only | 03457 145 145 — 24h operational issues |
| Bristol Water | Bristol and surrounding area — water only | 0345 702 3797 |
| Cambridge Water | Cambridge and surrounding area — water only | 0800 389 1011 |
| Dŵr Cymru Welsh Water | Most of Wales plus some adjoining English border areas | 0800 052 0130 — water/sewer operational emergencies |
| Essex & Suffolk Water | Parts of Essex and Suffolk — water only | 0345 782 0999 |
| Hafren Dyfrdwy | Parts of north-east and mid Wales, including Wrexham/Powys areas | 0800 085 8033 — 24h emergency |
| Northumbrian Water | North East England | 0345 717 1100 |
| Portsmouth Water | Portsmouth, south-east Hampshire and parts of West Sussex — water only | 023 9249 9888 / official incident pages |
| SES Water | Parts of Surrey, Kent and south-London fringe — water only | 01737 772000 |
| Severn Trent | Much of the Midlands and adjoining areas | 0800 783 4444 — 24/7 operational emergencies |
| South East Water | Parts of Kent, Sussex, Surrey, Hampshire and Berkshire — water only | 0333 000 0365 — 24/7 emergency |
| South Staffs Water | Staffordshire, West Midlands and adjoining areas — water only | 0800 389 1011 — 24/7 emergency |
| South West Water / Bournemouth Water | Devon, Cornwall, Isles of Scilly and Bournemouth water-supply area | 0344 346 2020 |
| Southern Water | Parts of Hampshire, Isle of Wight, Sussex and Kent | 0330 303 0368 |
| Thames Water | London and Thames Valley | 0800 316 9800 — 24/7 |
| United Utilities | North West England | 0345 672 3723 — 24h |
| Wessex Water | Parts of Bristol/Bath, Somerset, Wiltshire and Dorset | 0345 600 4 600 — emergencies 24/7 |
| Yorkshire Water | Yorkshire | 0345 1 24 24 24 — 24/7; leak line 0800 57 35 53 |
| Scottish Water | Scotland | 0800 0778 778 — 24/7 |
| NI Water | Northern Ireland | 03457 440 088 — 24h |
Official sources
All reporting topicsLast verified 28 September 2026