Serving parts of North West London and the Home Counties.


Ways to pay your bill


Online >> 

Have you registered for My Account?

An online account makes it easy for you to view and pay your bill, as well as downloading your bills and statements.

Click here to log in or register


Phone 0345 357 2400: 24hr automated payment line 

Direct Debit >> sign up using My Account

Standing Order >>

Bank (internet/telephone):  


In the UK:   

Account number: 80542903    

Sort code: 20-05-03

Please quote your 8 digit customer number (without the hyphen)

If you have an & symbol as the eighth digit please replace this with an X.


Notice: Our sort code has changed from 20-74-09 to 20-05-03

If you pay by internet banking, you may see a warning message from your bank. This is normally a security feature telling you about the change and is nothing to worry about.

Have you paid using our old sort code?  this still works, but please update our sort code when you next pay.


From abroad: You may need the following information as well

Notice: Our IBAN has changed from GB79 BARC 20740980542903 to GB19 BARC 20050380542903

IBAN: GB19 BARC 20050380542903    



By cheque:

Please make your cheque payable to Affinity Water Ltd and write your customer number on the back.

Then sent it with your payment slip to Affinity Water Ltd, Tamblin Way, Hatfield, Herts, AL10 9EZ. Please do not send cash or post dated cheques.


Spread your payments

If you are unable to pay the bill in full you may want to spread your payments throughout the year. You can do this by:

Direct Debit  >>

PayPoint Payment Card  >>

Payment giro slips  >>


Struggling to pay

We understand how stressful life can get when paying your bills is a struggle, but we have many options that might benefit you.  

Find out more >>