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Tree Protection Zone Services

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Council Compliant Root Protection Excavation

Tree Protection Zone Services

Hydro Excavation for Tree Protection in line with AS4970-2009

At Plumbtrax, we provide professional Tree Protection Zone (TPZ) excavation services using non-destructive hydro excavation to preserve and protect significant trees during site works.

Our services comply with AS4970–2009 – Protection of Trees on Development Sites, and we work closely with local councils, builders, and arborists to meet permit and planning requirements throughout Melbourne and regional Victoria.

If your project involves construction near street trees or mature vegetation, we ensure that root zones are identified, protected, and maintained with minimal impact.

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What is a Tree Protection Zone (TPZ)?

A TPZ is a calculated area surrounding a tree, defined to safeguard its roots, canopy, and structural integrity. Activities like excavation, trenching, or heavy vehicle movement within this area are strictly regulated by councils under AS4970–2009.

Our TPZ Services Include:

Hydro excavation to expose roots safely within the TPZ
Pre-construction root investigations & mapping
Compliance with local council tree protection permits
Arborist collaboration for on-site supervision
Root barrier trenching and installation
Real-time reporting and project support

Melbourne Hydro & Vacuum Excavations

Working with Councils Across Melbourne

Plumbtrax has extensive experience working within tree protection regulations for:

City of Melbourne
Yarra Ranges Council
Maroondah City Council
Knox City Council
Whitehorse City Council
Manningham City Council
…and more.

We understand permit processes, inspection requirements, and construction limitations within TPZs—ensuring your works remain compliant while protecting valuable vegetation.