File a complaint through the mail
You can file a complaint through the mail. Be sure to include all the relevant information in your letter. This will enable us to handle your complaint swiftly.
Please include the following information in your letter:
- name
- address, postal code, city
- phone number
- account number (only for tap water)
- description of your complaint
- city, date and signature
Send your letter to:
Waternet
t.a.v. Klachtencoördinatie
Postbus 94370
1090 GJ Amsterdam
Berry, the digital assistent