The Essential Services Commission (ESC) has approved Greater Western Water's updated prices and charges, which take effect from 1 July 2026.
The prices you pay depend on where you live in our service area – either in the central region or the western region. We are working toward consistent pricing across our entire service area but currently maintain two different sets of prices for customers to ensure stable price changes.
What's changing for 2026-27
If you live in our centralregion, your average annual household water and sewerage bill will increase by $84, or 8 per cent, including CPI. This is based on a typical household using 150 kilolitres of water a year.
If you live in our westernregion, your average annual household water and sewerage bill will increase by $66, or 6 per cent, including CPI. This is for a typical household using 150 kilolitres of water a year.
Adjustments to our prices reflect changes in the cost to deliver safe and reliable water and sewerage services to you.
Price increases for the coming year largely reflect the large desalinated water order for Victoria in 2026-27 (150 billion litres), and high inflation (measured by CPI).
Why do we have different prices across our region?
Before Greater Western Water formed, there were two separate water providers servicing our region: City West Water and Western Water. These companies had different prices and fee structures. This is why there are currently two different sets of prices for the central and western regions.
We know that affordability matters to our customers and everyone should experience a similar level of service for a fair and similar price, no matter where they live.
To avoid large, sudden changes for customers, we're gradually working to align prices across our entire service area. This gradual approach ensures stable price changes and was approved by the ESC through its review of our price submission.
Why are prices changing when there have been issues with our billing?
We understand the disruption some customers have experienced due to technical issues with our system. These annual pricing updates are approved by the ESC to ensure long-term investment in water, sewer and customer services.
What your bill pays for
Your water and sewerage bill covers several essential services that keep clean and safe water flowing to your home, and ensure wastewater is properly treated to protect public health and the environment. These include your water supply, wastewater services, upgrading and building our water infrastructure, and operating costs. You can read more about what your bill pays for on our website.
We’re here to help
We understand many customers are facing cost of living pressures right now.
We're here to help if you're having trouble paying your bill. There’s a range of support options for both residential and business customers, including:
flexible payment plans
payment extensions
concessions
support grants
referrals to financial counselling services.
Read more about financial support on our website or call us on 13 44 99.
