We offer a variety of flexible payment options to help make paying your water bill easy.

We accept all major payment methods. You can pay:

Pay by Direct Debit

It’s easy to set up a Direct Debit online on MyAccount, your customer portal. If you don't already have MyAccount, it's quick and easy to register.

  • Take paying bills off your 'To Do' list
  • Regular Direct Debit payments help to manage cash flow
  • Direct Debit payments are covered by the Direct Debit Guarantee
  • Direct Debits help to avoid late payment charges

Make sure you have your bank details and an up-to-date invoice to hand.

Set up my Direct Debit

A monthly Direct Debit is the easiest way to pay your bills and spread the cost. We’ll work out how much you’ll need to pay each month based on how much water you’re likely to use. At times, you’ll be in credit or debit. But we’ll review your payments each year to make sure you’re paying the right amount and let you know if your payments need to change. When you pay by Direct Debit, you'll be covered by the Direct Debit Guarantee.

If you wish to move to a variable Direct Debit, please fill out this form.

Pay online

Paying online by debit or credit card is quick and easy using our secure payment service. Pay Online.

Pay by bank transfer

You can pay directly to our bank using the account details included on your invoice.

Our bank details:
Account Number: 14285168 
Sort Code: 30-80-12

If you choose to pay in this way, you must quote your Castle Water account number (e.g. TW123456789) as the reference, so we can allocate your payment correctly and promptly.

Pay over the phone

You can pay securely over the phone by calling us on 01250 718700 from Mon-Fri, 8am-6pm. Alternatively, if you are a Key Account customer, please call the Key Account Department on 01250 718718.

Pay by cheque

You can pay us by cheque. Simply write your invoice number, business name, customer account number and your postcode on the back of your cheque then send your payment using the Freepost envelope provided. No stamp is required.

Important: You must write your invoice number, business name, customer account number, and your postcode on the back of your cheque. If you don’t do this, we will not be able to credit your account properly.

Better still, consider paying by Direct Debit. It’s easy to set up and will help save you time and effort.

Remittance Advice

In order to help us allocate your payment to the correct account, please submit a remittance advice form.

Anyone can use this form. This will help us process and allocate your payment(s) accurately and in good time, especially if you are making a single payment covering multiple accounts, or multiple payments at the same time.

Alternatively, if you'd like to provide your own remittance advice slip, please send it to payments@castlewater.co.uk.

Querying your water bill

Got a query about your water bill? Email us here, or use our 5-star webchat service on the homepage.

Avoid late payments

However you choose to pay your bill, please ensure you pay on time to keep your account on track and avoid any late payment charges. We share data with Experian, our credit reference agency, which means that your payment behaviour may be included in your credit report. Please pay your bill within your agreed terms or get in touch with us as soon as possible if you’ve any issues that may delay payment.

Good communication is critical. We share payment experiences with credit reference agencies. If you are struggling to pay your bills on time, please contact us so we can find a solution in order to prevent damage to your credit status.

Finding it difficult to pay?

If you're concerned about paying your bill, please get in touch immediately so that we can discuss your options and see if we can help.