In-Ground Plumbing & VBA Works
Prost delivers in-ground plumbing and VBA-licensed works as part of a fully integrated, turn-key delivery model, supporting builders and developers across metropolitan and regional Victoria.
Beyond Standard Private Plumbing
Our capability extends well beyond standard private plumbing. We provide a complete end-to-end solution, bridging authority infrastructure, live connections and private in-ground plumbing — allowing projects to progress seamlessly from civil works through to building construction.
Prost supports builders undertaking projects that require authority extensions and approvals, live water and sewer shutdowns for new connections, private in-ground plumbing works, and internal sewer and drainage in-grounds. By delivering these scopes under a single coordinated operation, Prost reduces interfaces, risk and program uncertainty for builders managing complex sites.
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Built on Deep Sewer Construction Experience
Prost's in-ground plumbing capability is underpinned by extensive experience in deep sewer trenching and complex civil construction. This experience makes our capability uncomparable to local plumbing contractors.
Prost is often trusted to take on construction risk that traditional plumbing contractors cannot, providing builders with a true turn-key in-ground solution.
What We Deliver
Authority Interfaces & Extensions
Support for projects involving authority water and sewer extensions, including coordination of approvals, live works, shutdowns and connections.
Water & Sewer Connections for New Builds
Execution of new connections to live water and sewer networks, including shutdowns, diversions and controlled tie-ins aligned with authority and project requirements.
Private In-Ground Plumbing
Delivery of private in-ground plumbing works for residential, commercial and mixed-use developments, integrated with broader civil and building programs.
Internal Sewer & Drainage In-Grounds
Construction of internal sewer and drainage in-grounds within development sites, sequenced to support building construction and slab programs.




Integrated Project Lifecycle
In-ground plumbing works are delivered as part of Prost's integrated delivery model, working seamlessly with:
VBA-Licensed & Compliant
All in-ground plumbing and private works are delivered by VBA-licensed plumbers, ensuring compliance with Victorian Building Authority requirements, applicable plumbing codes and standards, and project specifications.
Explore Our Other Services
Sewer Construction
Complex sewer construction and deep excavation works.
Water Reticulation
Water main construction, extensions and network delivery.
Drainage
Drainage pipeline construction and subdivision works.
Live Works
Complex live sewer and water network operations.
NDD & CCTV
Non-destructive digging, drain cleaning and pipeline inspection.
Need a Turn-Key In-Ground Solution?
From authority extensions to private in-ground plumbing, Prost delivers the complete solution. Get in touch to discuss your project requirements.
Prost — keeping you connected underground.