The works are taking place in both north and south Kildare
Disruption to water supply is expected tomorrow across the county.
It comes as the country will experience a yellow weather temperature warning, coming into effect tomorrow from noon and remaining in place until 9am on Friday.
Disruption is expected in Athy, the Curragh, Carbury, Rathbride, Leixlip and Johnstownbridge.
The works are set to take place from 9am to 5pm tomorrow.
Many of the works are said to be as part of the National Leakage Reduction Programme, while there is a valve installation in Carbury.
Overall, the areas affected by works are as follows:
Athy and surrounding areas.
Brownstown Manor, Brownstown, Curragh and surrounding areas.
Rathbride Grove, Rathbride Road and surrounding areas.
Carbury, Ballybrack and surrounding areas.
Enfield, Spire View, Johnstown Bridge and surrounding areas.
Leixlip, The Oaks, Westfield and surrounding areas.

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