| Postal | Uisce Éireann PO Box 860 South City Delivery Office Cork City |
| Email | General complaints: customerservice@water.ie Water Service complaints: operations@water.ie General business complaints: business@water.ie |
| Web/Twitter (For general enquiries) | www.water.ie Twitter @IrishWater, and @IWCare (Customer Care) |
| Contact Phone No for General Enquiries | 1800 278 278 |
| Complaints/issues with Water / Waste Water Quality | 1800 278 278 or for out of hours 1850 211525 |
| Business Enquiries / Billing | 0818 778 778 |
