Free lookup
Who supplies water to your postcode?
Water is the one utility with nothing to choose: the supplier is decided by where the property is, and cannot be switched. Enter a postcode to find out who bills you, and who takes the waste water away.
Only the letters at the front are used. Nothing is stored.
Every UK postcode area
121 areas, from AB to ZE.
- AB Aberdeen
- AL St Albans
- B Birmingham
- BA Bath
- BB Blackburn
- BD Bradford
- BH Bournemouth
- BL Bolton
- BN Brighton
- BR Bromley
- BS Bristol
- BT Northern Ireland
- CA Carlisle
- CB Cambridge
- CF Cardiff
- CH Chester
- CM Chelmsford
- CO Colchester
- CR Croydon
- CT Canterbury
- CV Coventry
- CW Crewe
- DA Dartford
- DD Dundee
- DE Derby
- DG Dumfries
- DH Durham
- DL Darlington
- DN Doncaster
- DT Dorchester
- DY Dudley
- E East London
- EC East Central London
- EH Edinburgh
- EN Enfield
- EX Exeter
- FK Falkirk
- FY Blackpool
- G Glasgow
- GL Gloucester
- GU Guildford
- HA Harrow
- HD Huddersfield
- HG Harrogate
- HP Hemel Hempstead
- HR Hereford
- HS Outer Hebrides
- HU Hull
- HX Halifax
- IG Ilford
- IP Ipswich
- IV Inverness
- KA Kilmarnock
- KT Kingston upon Thames
- KW Kirkwall
- KY Kirkcaldy
- L Liverpool
- LA Lancaster
- LD Llandrindod Wells
- LE Leicester
- LL Llandudno
- LN Lincoln
- LS Leeds
- LU Luton
- M Manchester
- ME Medway
- MK Milton Keynes
- ML Motherwell
- N North London
- NE Newcastle upon Tyne
- NG Nottingham
- NN Northampton
- NP Newport
- NR Norwich
- NW North West London
- OL Oldham
- OX Oxford
- PA Paisley
- PE Peterborough
- PH Perth
- PL Plymouth
- PO Portsmouth
- PR Preston
- RG Reading
- RH Redhill
- RM Romford
- S Sheffield
- SA Swansea
- SE South East London
- SG Stevenage
- SK Stockport
- SL Slough
- SM Sutton
- SN Swindon
- SO Southampton
- SP Salisbury
- SR Sunderland
- SS Southend-on-Sea
- ST Stoke-on-Trent
- SW South West London
- SY Shrewsbury
- TA Taunton
- TD Scottish Borders
- TF Telford
- TN Tonbridge
- TQ Torquay
- TR Truro
- TS Teesside
- TW Twickenham
- UB Uxbridge
- W West London
- WA Warrington
- WC West Central London
- WD Watford
- WF Wakefield
- WN Wigan
- WR Worcester
- WS Walsall
- WV Wolverhampton
- YO York
- ZE Shetland
The 21 UK water companies
- Affinity WaterWater only
- Anglian WaterWater and sewerage
- Bristol WaterWater only
- Cambridge WaterWater only
- Dŵr Cymru Welsh WaterWater and sewerage
- Essex & Suffolk WaterWater only
- Hafren DyfrdwyWater and sewerage
- NI WaterWater and sewerage
- Northumbrian WaterWater and sewerage
- Portsmouth WaterWater only
- SES WaterWater only
- Scottish WaterWater and sewerage
- Severn TrentWater and sewerage
- South East WaterWater only
- South Staffs WaterWater only
- South West WaterWater and sewerage
- Southern WaterWater and sewerage
- Thames WaterWater and sewerage
- United UtilitiesWater and sewerage
- Wessex WaterWater and sewerage
- Yorkshire WaterWater and sewerage
Where to confirm this
We hold the supplier at postcode-area level, which is coarse enough to be wrong at a boundary. These are the industry's own sources, and they settle it for a specific address.
- Water UK: find your supplier ↗
- the Consumer Council for Water: complaints and advice ↗
- Discover Water: bills by company ↗Sector average £639 a year for 2026–27.
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