
















Water Supply
(Hot & Cold)
Trade Waste
Sanitary Plumbing
& Sewer
Natural Gas
Stormwater &
Roof Drainage
Fire Hydrant
& Hose Reel
Rainwater Harvesting
Solar Hot Water
Condensate Drainage
Lab Water
(Where Applicable)

| The Specialist Advantage | OTG | Typical Others |
|---|---|---|
| Hydraulic-Only Focus Our entire business, not a side service inside a larger MEP firm. | β | β |
| Trade-Backed Design 20+ years experience starting from the tools. We design what actually builds. | β | β |
| Compliance Guarantee If our docs fail approval due to non-compliance, we fix them free. | β | β |
| Fast RFI Turnaround Same-day or next-day responses typical during construction. | β | β |
| Pre-Issue Coordination Documentation aligned with your architect and MEP team before it leaves our office. | β | β |
All hydraulic designs and documentation are prepared to meet or exceed current NCC, BCA, AS/NZS 3500, and relevant local authority requirements.
If clashes within our scope are identified, we resolve them quickly to keep your project on track.
We respond to RFIs and coordination requests within agreed timeframes. No chasing required.
Your fee proposal confirms deliverables, inclusions, and timelines before any work begins.
OTG designs and delivers projects in line with the National Construction Code and adheres to key Australian Standards including:
Our commitment to these standards ensures the highest levels of safety, efficiency, and regulatory compliance in every project we undertake.

