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Provide us with the details and we’ll take care of the rest.
If you have recently moved into a premises supplied by Castle Water, please let us know as soon as you move in.
If you have another Castle Water account, please login and complete this form. If you haven't logged in before, all you need to register is your account number, email address, and postcode.
If you are a brand new customer to Castle Water, please fill in your details at the form below.
If you have moved out of a premises supplied by Castle Water, please let us know as soon as possible.
Click below to log in to your online portal and complete our move out form.
We will update our records and issue a final bill and a refund if you have overpaid.