Great Western Water increases bills

Annual water and sewerage bills from Great Western Water (GWW) will increase by an average $35 a year for Sunbury’s households, the higher prices were introduced today.

For 2024-25, average annual water bills will rise to around $1,038 a year in the central region and $1,134 in the western region. The announcement follows a decision by water regulator the Essential Services Commission on GWW’s proposed price hikes.

The water company is now expanding its support programs for customers experiencing hardship or struggling with household bills.

The firm’s MD, Maree Lang, says this is the first price review since GWW was formed in 2021.

The organisation is investing $1.69bn in infrastructure to service populations growth in Melbourne’s central and western regions. And it is upgrading treatment plants in the Werribee and Maribyrnong catchments, “…supporting our commitment to heal and care for country”.

Learn more about GWW’s changes here.

 2023-24 (current)2024-252025-262026-272027-28
Residential – owner occupier – Central$1,007$1,038$1,046$1,054$1,061
Residential – owner occupier – Western$1,099$1,134$1,125$1,115$1,106
Residential – tenant – Central$531$531$531$531$531
Residential – tenant – Western*$288$328$356$383$409
Table: Estimated typical water and sewerage bills (residential) for an average 150 kL per annum consumption based on Greater Western Water’s proposal ($2024-25).
* Estimates reflect the gradual removal of the government efficiency rebate which will cease by 2027-28. 
Data source / Essential Services Commission.