From October 2025, we’ve brought together our western and central regions, in a single ‘Greater Western Water way’ of operating our water meter services.
Previously, these services operated differently and were governed by separate guidelines across our central and western regions. This created confusion and inconsistency for our customers.
With the introduction of our new water meter services operating model, if you service GWW’s western region (formerly Western Water), you need to be aware of several changes to how you service GWW's customers.
To deliver standardised, consistent services across our entire service region, we’re pleased to welcome New Plumbing Solutions (NPS) as our meter connections and installations service partner. NPS now manage the bulk of the water meter connection and installation processes, as explained below.
We’re also pleased to welcome Service Stream as our meter reading service partner.
Both were appointed following a formal tender process.
A single set of metering and servicing guidelines
Our guidelines, aligned with Melbourne Retail Water Agencies standards, promote consistency across our entire service region.
New meter assembly (‘dry’ tapping) process for new estates
This process covers the meter assembly process for new estates, where a 'dry' tapping has been provided.
Instructions for plumbers
Lodge your plumbing application on behalf of the property owner.
Plumbers from GWW’s service partner (NPS) will complete the following tasks, usually within 10 business days: a) Connect the water supply to the existing dry tapping. b) Construct the inlet portion of the meter assembly. c) Install the meter.
Property owners' plumbers are then responsible for constructing the balance of the meter assembly, once construction of the property starts, in accordance with GWW conditions.
New meter installations ('wet’ tapping) process for new developments in existing areas
This new main-to-meter process covers new developments in existing areas, including single residences, dual occupancy, multi-unit, commercial or industrial developments, where a ‘wet’ tapping is required.
Instructions for plumbers
Lodge your plumbing application on behalf of the property owner.
Plumbers from GWW’s service partner will: a) Tap the water main. b) Construct the service pipe into the property. c) Construct the inlet portion of the meter assembly. d) Install the meter.
Property owners' plumbers are then responsible for constructing the balance of the meter assembly, in accordance with GWW conditions.
What stays the same
Plumbers still need to make their plumbing applications with GWW and carry out all other work in accordance with our conditions. This includes constructing the balance of the meter assembly in both new estates and new developments in existing areas.
No changes to the process where developments contain a fire service, with owners and their licensed plumbers responsible for installing and maintaining the property service pipework
No changes to ways of operating for plumbers and contractors servicing GWW’s central region.