Skip to main content
20 companies · All UK regions

UK Water Companies

Water quality reports for all 20 UK water companies — hardness, nitrates, lead, PFAS and more.

All water companies
Thames WaterLondon & Thames Valley15M customersPFAS notice United UtilitiesNorth West England7M customersPFAS notice Severn Trent WaterMidlands8M customersPFAS notice Yorkshire WaterYorkshire5M customersPFAS notice Anglian WaterEast of England4.5M customersPFAS notice Southern WaterSouth East England4.7M customersPFAS notice South West WaterDevon, Cornwall, Dorset & Somerset1.8M customersPFAS notice Welsh Water (Dŵr Cymru)Wales & Herefordshire3M customersPFAS notice Northumbrian WaterNorth East England2.7M customersPFAS notice Affinity WaterSouth East England3.6M customersPFAS notice South East WaterKent & Sussex2.2M customersPFAS notice Wessex WaterDorset, Somerset & Wiltshire2.8M customersPFAS notice Portsmouth WaterHampshire700K customersPFAS notice Bristol WaterBristol & surrounding area1.2M customers Cambridge WaterCambridgeshire300K customers Essex & Suffolk WaterEssex & Suffolk1.8M customers SES WaterSurrey & Sussex700K customers South Staffordshire WaterSouth Staffs & Cambridgeshire1.6M customersPFAS notice Hafren DyfrdwyMid Wales & Shropshire100K customers Scottish WaterScotland5.4M customers

All city guides

London Manchester Birmingham Leeds Glasgow Sheffield Bradford Liverpool Edinburgh Bristol Cardiff Leicester Coventry Nottingham Newcastle Sunderland Brighton Plymouth Stoke-on-Trent Wolverhampton Derby Southampton Portsmouth Oxford Cambridge Norwich Ipswich Luton Exeter Aberdeen Dundee Inverness York Hull Middlesbrough Bolton Blackpool Huddersfield Reading Swansea Newport Swindon Milton Keynes Peterborough Chelmsford Gloucester Worcester Chester Lincoln Hereford View all 50 cities →

Contaminant guides

Lead pipes UK Chlorine in tap water Nitrates in water Water hardness by postcode PFAS in UK water Hard water areas UK Is UK tap water safe?
Full personalised report

Want the complete picture for your postcode?

30+ parameters, PFAS analysis, lead risk, filter recommendations matched to your exact zone — all in one PDF report.

✓ All 30+ parameters ✓ PFAS & lead risk ✓ Hormone health analysis ✓ Personalised filter picks ✓ PDF by email
£19.99
One-off payment · Delivered within 24 hours
Get My Full Report →