You can find your customer number on your tap water bill, on your bank account statement of Waternet, or in the email or letter after you registered your address.
Read moreAsk our digital assistant
- Replies immediately
- Always available
- Can connect to livechat
Other contact options
Call us
Call us on business days between 8.00 and 17.00.
normal phone rates apply
international
Average waiting time is 20 minutes
Social media
Ask your question via Facebook or Twitter on business days between 9.00 and 17.00.
We will respond within 1 week
Email not available
You can send us an email after 20.00. During the day, we would rather help you in a chat or a phone call.
Help us improve our service
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 moreView our bank account numbers. Please use a different one for each service: your tap water and water authority tax.
View our bank account numbersRegister the new customer. Do you have a water meter? Then the current account holder will receive a final bill.
Read moreIf 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).
Read moreMain 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 8:30 till 17:00 on business days. The servicedesk is located at our main office.