Save on your business water costs with our lowest ever tariff

Lock into our lowest ever water tariff and avoid any wholesale tariff changes!

  • Switch today. The process couldn't be more simple - we'll do all the work for you! Just fill in this simple form and we'll take care of the rest.

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Permission We will get in touch with you to remind you before your chosen tariff ends and to make sure you are aware of any relevant services and offers. We would like to be able to contact you, including by email and SMS text. We will never share your details with third parties for marketing purposes. Please click yes to show that you agree.

Having difficulty? Please email switch@castlewater.co.uk or call 0808 196 2299 . We’ll be happy to help.

Terms and Conditions apply. Click here to read our Terms and Conditions for Fixed Tariffs.