On the original Irish Water application forms the main contact numbers were 1890 numbers.
We have written before about the potentially high costs of ringing 1890 numbers – especially from mobile phones. Waiting for half an hour on an 1890 line could cost as much as €13.50 See this link: Cost 0f 1890 Calls
Irish Water and all other companies have stopped using 1890 numbers and now use 0818 instead.
Find out How Much 0818 Calls Cost
Here are the numbers you can use for calling Irish Water.
Irish Water Billing 0818 778 778 / International +353 1 707 2827.
Irish Water – main Contact number (Leaks etc) If an issue is urgent, call 1800 278 278 (freephone)
/ international +353 1 707 2828
Email -: firstname.lastname@example.org