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Introducing a new kind of water and wastewater network operator, providing you with a dedicated service, tailored specifically to you.
By choosing Castle Water, you are choosing more than a network operator – you are opting for a partner that provides unmatched control, care, and efficiency in water and wastewater management.
We are now introducing our services as a water and wastewater network owner in order to provide our customers with:
We believe it’s critical to get it right, first time, every time.
Castle Water is the largest independent water retailer in England and Scotland, with 20% market share in the non-household water retail market. Castle Water was the first independent water retailer in England. and is the only Water Retailer to obtain a Wholesale Authorisation License.
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