Irish Water has updated the estimated restoration time.
Work is continuing this morning to restore water to parts of Portlaoise.
Crews are onsite in Harpur's Lane repairing a burst water mains.
The works now have an estimated completion time of 1 o'clock this afternoon.
Irish Water does advise those affected that it may take 2 to 3 hours after the restoration time for your supply to fully return.
The utility added that repairs are being conducted as quickly and efficiently as possible to minimise disruption to the community and restore water for all customers.
Irish Water's customer care team also available to help 24/7 on 1800 278 278 and customers can also make contact on Twitter @IWCare with any queries.
Calls Grow For 24 Hour Garda Station In Edenderry After Arson Attack
Appeal Date Set For Jozef Puska Over Murder Of Ashling Murphy
Offaly Town Demands Meeting With Garda Commissioner And Justice Minister
Ireland’s First Kidney Pancreas Transplant Recipient Dies Aged 68
Quality Of Life To Drive Offaly’s Appeal For Foreign Investment - Anna Marie Delaney
Hundreds Of Mourners Gather For Tadgh Farrell's Funeral
Dancing With The Stars ‘A Once In A Lifetime Opportunity’ - Rose Of Tralee
Uisce Éireann To Submit €6b Water Project Plan
Pedestrian Killed In Midlands Crash
Gardai Arrest Four Men Over Laois Prison Assault
Maura Higgins Set For Traitors US
Man Taken To Hospital Following Alleged Westmeath Assault
Osteoarthritis Programme Launched At Midlands Hospital
Laois County Fire And Rescue Service Welcomes Two New Fire Appliances
Offaly TD Welcomes New IDA Ireland Investment
Gardai Conduct House Searches In Connection With Offaly Arson Attack
Funeral For Offaly Arson Attack Victim To Be Held Today
Emergency Services At Scene Of Offaly Crash
Tadgh Farrell’s Father Denied Compassionate Bail To Attend Son’s Funeral