Hydraulic services resolved against structure, not around it.
Hydraulic is the discipline where coordination most often falls down, because it is gravity-bound. Sanitary drainage cannot be re-routed around a clash the way a duct or a cable tray can — it has to fall, in a set direction, through a structure that was designed by someone else. We set the drainage geometry against the structural model early and hold penetration positions through documentation, which is why our hydraulic packages generate fewer site variations than they otherwise would.
Scope, by project stage.
Stated by stage so you can see exactly what is included at the point you are engaging us — and what is not.
Concept and feasibility
- Authority servicing enquiry — water, sewer and gas
- Sanitary drainage strategy and fall analysis
- Pump, tank and plant spatial allocation
- Fire and domestic water storage assessment
Development Application
- Hydraulic services statement
- Sydney Water and authority pre-lodgement coordination
- Trade waste and grease arrestor strategy where required
- Stormwater connection strategy with the civil design
Construction Certificate
- Cold water, hot water, sanitary, trade waste, gas and stormwater documentation
- Pipe sizing, pump selection and hydraulic calculations
- Structural penetration schedules coordinated with the engineer
- Specification and fixture schedules
Construction phase
- Shop drawing and hydraulic contractor submission review
- Authority approval support
- Site inspection and progressive review
- Design certification
Three positions we hold on hydraulic.
These are the decisions that determine whether the package works. They are made early, and they are the ones we will argue about.
Falls before layouts
We set the sanitary drainage geometry against the structural model before the hydraulic layout is drawn. It is the single decision that determines whether a hydraulic package coordinates or fights, and it cannot be recovered later without either a bulkhead or a transfer.
Penetrations are agreed once
Every structural penetration is scheduled, dimensioned and issued to the structural engineer as a coordinated package, not marked up on site. Late penetration requests are among the most common causes of programme loss on a services package.
Authority approvals are tracked as programme items
Sydney Water and equivalent authority approvals have real lead times that are frequently discovered rather than planned. We start the servicing enquiry at concept and report approval status against the programme.
Sectors and framework.
Compliance is the floor. Constructability, maintainability and long-term value carry equal weight.
Sectors
Design framework
- AS/NZS 3500 series
- NCC Volume Three (Plumbing Code of Australia)
- AS 2419.1 where fire water storage is shared
- Water authority technical requirements
Recent projects.
Residential, education, student accommodation, hospitality, alpine and industrial projects delivered across Australia.
All projects
Hydraulic Engineering.
Marked up as FAQPage structured data — the correct structure for AI answer engines as well as for search.
Yes. Servicing enquiries, Section 73 coordination and water servicing coordinator liaison are part of the hydraulic scope rather than a client responsibility handed back at documentation.
Shared storage is assessed jointly with the fire protection design. Where a combined tank is viable it usually reduces both plant footprint and capital cost, but it has to be resolved at concept because it drives the tank room size.
Yes — grease arrestor sizing, trade waste applications and the associated authority approvals are documented as part of the hydraulic package.
Yes, issued as a coordinated package to the structural engineer. Penetrations resolved in documentation cost a mark-up. Penetrations resolved on site cost a core drill and an engineering assessment.
Usually engaged alongside this.
Civil Engineering
Stormwater, drainage, earthworks and site infrastructure integrated with the building services design.
Fire Protection
Sprinkler, hydrant, detection and suppression design, including performance solutions where prescriptive compliance constrains the project.
BIM & Digital Engineering
Federated models, clash resolution and coordinated documentation that resolve conflict in design rather than on site.
Have a project that needs hydraulic?
Tell us the scope, the stage and the deadline. We will come back with a clear fee proposal.