You can find your customer number in My Waternet for tap water, on your tap water bill or on your bank account statement for your tap water installments.
Ask our digital assistant
Other contact options
Our customer service team is not available right now. Call us on business days between 8.00 and 17.00. Our digital assistent is happy to answer your questions 24/7.
Want to report a water problem? You can call us 24 hours a day.
Ask your question via Facebook or Twitter. We will respond within 1 business day.
Send an email
Send us an email with your question.
Report a problem 24/7
You can report a problem 24 hours a day on every day of the week. Call us on 0900 9394 and choose option 1. Or when calling from abroad: +31 889 39 4000.
Before calling, please check if your water problem has already been reported.
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Do you have a comment, suggestion or complaint? Please let us know!
Frequently asked questions
Are you moving to or out of Amsterdam? Then you need to take action for your tap water.Find out more
View our bank account numbers. Please use a different one for each service: your tap water and water authority tax.View our bank account numbers
You cannot change the name on the tap water account yourself. The new customer must register himself. After that you will automatically receive a final bill.
If you moved out of The Netherlands, you may still have to pay an outstanding amount. Please check what kind of bill you received: waterschapsbelasting (water authority tax) or drinkwater (tap water).
Main office address
Korte Ouderkerkerdijk 7
1096 AC Amsterdam
Opening hours servicedesk
The servicedesk for water authority tax and tap water is open from 13.30 till 15.30 on business days. The servicedesk is located at our main office.