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.

Open water market

If you have a business in England or Scotland, you can now choose your water and wastewater supplier – similar to the way you choose your energy or telecoms supplier. Go to ‘About us‘ to read more about the open water market.

Our services

As your water supplier, we’re here to take the stress out of buying water for your business. Our services include:

  • Automatic meter reading
  • Consolidated billing
  • Flexible payment options
  • Water efficiency advice
  • UK-based customer services
  • Extended opening hours, Mon – Fri, 8am – 6pm

Large and multi-site customers

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.

Request a quote today!

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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