Crumlin Water Main Replacement

National Leakage Reduction Programme

Irish Water replacing ageing cast iron water mains in Crumlin, Dublin 12 to improve security of supply and quality for local customers and businesses and reduce high levels of leakage.

Irish Water, working in partnership with Dublin City Council, will begin works to replace ageing water mains in Crumlin, Dublin 12. The works will begin with area surveys this coming week followed by construction in late summer 2018. These water main renewal works are being carried out as part of Irish Water’s national Leakage Reduction Programme.

The Leakage Reduction Programme will see over €500 million invested over four years to reduce leakage and remove problematic pipes from the public water network. These works will help to ensure that we have a clean, safe and reliable water supply now and into the future to support our growing population and economy.

Leakage Reduction


  • Works will involve the decommissioning and replacement of 2.6 kilometres of old and damaged cast iron water mains
  • Existing pipes will be replaced with new modern high density polyethylene (plastic) pipes
  • Works will also involve laying new water service connections from the public water main in the street to customers’ property boundaries and connecting it to the customers’ water supply
  • Where there is lead on the public side of the service connection this will be removed
  • Works commencing in summer 2018 will move from location to location and in total across all areas are expected to take approximately 4 weeks to complete


​A Reliable Water Supply

  • Replacement of water mains and service connections will reduce the instances of bursts and water outages and will ensure a reliable supply of water to customers and local businesses in the area

Improved Water Quality

  • Replacing existing old cast iron and lead from the public water network with new modern pipes will reduce the risk of contamination

Reduced Leaks

  • Replacement of water mains and service connections will eliminate existing leaks and reduce the amount of clean drinking water lost into the ground

Improved Operation and Maintenance

  • These works will deliver cost savings by providing improved water network operation that will require less maintenance in the future