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.
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Frequently asked questions
Are you moving to or out of Amsterdam? Then you need to take action for your tap water.
Find out moreView our bank account numbers. Please use a different one for each service: your tap water and water authority tax.
View our bank account numbersYou 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.
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Call us
Call us on business days between 08:00 and 17:00.
Social media
Ask your question via Facebook or X on business days between 9.00 and 17.00.
Email not available
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.
Main office address
Stichting Waternet
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.