System Upgrade Underway: As part of our commitment to enhancing our customer experience, we are currently carrying out upgrades to our system. During this short period it may take longer than usual for your payments to be allocated to your account. We are aiming for payment allocations to be up to date by Tuesday 2nd June 2026.
If you have recently moved into a premises supplied by Castle Water, please let us know as soon as you can.
All customers are required to complete our “Move In” form which can be found in the customer portal. Where possible, you should take a meter reading before beginning this form.
If you already have a Castle Water account, please log in and complete this form.
If you have moved out of a premises supplied by Castle Water, please let us know by completing our “Move Out” form below.
We will update our records and issue your final bill. If your account shows an overpayment, any remaining balance will be refunded upon account closure.
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