Castle Water is the UK’s leading independent business water supplier, providing water and wastewater services to hundreds of thousands of businesses, charities and public bodies in England and Scotland.

Why choose Castle Water?

  • We’ve got more 5-star Trustpilot reviews than all other water retailers combined
  • We can provide services to any type or size of business, in any location
  • We make switching easy and stress free
  • Our customer services are UK-based only
  • We provide extended opening hours, Mon – Fri, 8am – 6pm

We provide a range of services including:

  • Automatic meter reading
  • Consolidated billing
  • Flexible payment options
  • Water efficiency advice

Large and multi-site businesses

As a large or multi-site business, Castle Water can provide you with a framework of additional services through agreements with industry leading partners. To find out more about our additional services, click here.

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Request a quote today!

With Castle Water, expert advice is always on tap! Request a quote or contact us now to learn more about saving on your water costs.

Request a quote



  • water efficiency switch


    Switching is easy. Start saving today.

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  • water efficiency additional services


    We provide a range of additional services.

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  • water efficiency water efficiency


    Read our useful water saving tips.

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