Castle Water is the UK's largest independent business water retailer, committed to providing businesses with market-leading water services. As an independent retailer, we have the flexibility to compete nationally and offer the best possible prices. We are licensed by Ofwat and The Water Industry Commission for Scotland to provide water and wastewater services to businesses, charities, and public bodies in England and Scotland.

At Castle Water, we offer a wide range of services to suit different requirements, from large multi-site customers to SMEs and start-ups. We not only supply water but also provide additional services such as Automatic Meter Reading, Water Efficiency Audits, Leak Detection, and Contingency Planning. Our aim is to help businesses reduce their water consumption and use only what they need.

With the open water market, businesses in England and Scotland can now choose their water and wastewater retailer, similar to choosing an energy or telecoms retailer. As an independent provider, we are not tied to any network owners, allowing us to challenge decisions and provide the right service at the right price. With over 350,000 businesses choosing us and saving up to 80% on fixed water charges, Castle Water is the trusted choice for businesses across the country