Irish Water has mobilised crews to quickly restore water supply for customers in Freemount and surrounding areas
It comes following issues at Freemount water treatment plant.
Dedicated water service crews have mobilised and repairs are now complete.
Typically it takes two to three hours after this to restore normal supply to all customers affected by an unplanned outage, however water supply may not return until later tonight to customers located on higher ground and extremities of the network.