The cookie settings on this website are set to ‘allow all cookies’. Leaving your settings to ‘allow all cookies’ means you consent to a website remembering your preferences. If you prefer a website to not remember your preferences, you can change your settings at any time by changing the privacy settings of your browser.

how to save water

Contact us

Contact us

For emergencies, billing queries, complaints or feedback, please click on the related link on the top of this page.

For everything else, contact Waterline on 03457 440088.

(Customers with hearing difficulties can use ‘Text Relay’ through Waterline 03457 440088.)

Our Waterline service is staffed 24 hours a day, every day of the year.

If you want to contact us in writing, you have a number of options:


Email: waterline[AT]niwater[DOT]com

Our self-service and email communication channels are not monitored outside of normal office hours, on public holidays or during weekends. So, if you need to inform us about a matter that requires immediate attention, please contact us using the telephone number above.

If you want to send a letter, our postal address is below:

Northern Ireland Water
PO Box 1026

The Press Office handles all media enquiries on behalf of Northern Ireland Water and its employees.

Access to Information

You have a number of avenues to request information from Northern Ireland Water, detailed on our Publication Scheme.

To access your own personal information, you can make a Subject Access Request (SAR) under the General Data Protection Regulation/Data Protection Act 2018. Read our Privacy Notice here, and complete this SAR form, returning it with an appropriate form of ID.

You can also contact our Information Management Unit at imu[AT]niwater[DOT]com or via Waterline at 0345 7440088, if you have any queries about how best to request information from us.

Can't find what you're looking for? Visit the Need our Help section