My Account
You can make a fast payment by providing your account number and card details. If you would like to know your balance before you make a payment, you need to validate your account by entering your postcode.
- 1 Account Number and Amount
- 2 Your card details
1 Account Number and Amount
2 Your card details

Frequently Asked Questions
- Can Hafren Dyfrdwy recommend a SLP?
- My account is in credit - how do I claim my refund?
- Nominee scheme
- Self lay FAQs
- Alternative bill formats
- Am I at risk of Legionnaire's disease?
- Are there regulatory standards?
- Can I apply for a water and sewer connection at the same time?
- Can I choose how you refund my credit?
- Can I choose the date you take my Direct Debit from my bank account?
- Can I connect via backdrop?
- Can I have a bill up to the date I move out as this bill is for the whole year?