Celebrating over 15 years of service to the Piling Industry in Australia and New Zealand

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We are committed to meet and exceed our clients' expectations and provide the highest professional standards and competence in the industry.


The company is in full compliance with: 
- Australian National Code of Practice for the Construction Industry 
- Australian Government Implementation Guidelines June 2006


DPT was incorporated in March 1999 specifically to provide professional and independent pile testing services to the Foundation and Civil Engineering industry in New Zealand. Due to our expansion program we have subsequently established DPT Australia Pty Ltd in March 2002 to provide similar services to all major cities in Australia. The company's philosophy is to provide dedicated quality services to our clients. This means that when we are engaged in a a particular job, we would be utilizing our wealth of local and overseas experience gained in the last 10 years and state-of-the-art equipment and applying it in the most appropriate manner best suited to the particular project.


DPT aims to provide quality testing methods and analysis techniques for testing piles. Today's high foundation loads and fast track jobs require modern construction control. The availability of tools such as Pile Integrity Tester (PIT), Pile Driving Analyzer (PDA) and Case Pile Wave Analysis Program (CAPWAP) Analysis helps to quickly verify the integrity, driving stresses, hammer performance and bearing capacity of installed piles. Vibration and sound monitoring during pile driving would protect both the owners and contractors from litigation should adjacent property be damaged during the course of construction.


These testing tools are applicable to all type of piles, be it driven or cast-in-situ. Geotechnical engineers and contractors routinely involved in piled foundations would find these tools helpful in improving quality control and installing of safe and economical piled foundations. DPT is available to provide the clients, contractors or consultants with the vast data bank of piled foundations accumulated over a decade so that the most effective and economical foundation solution could be achieved.

DPT AUstralia Pty Ltd uses equipment supplied by Pile Dynamics Inc.USA, the pioneer and manufacturer of the Pile Driving Analyzer (PDA). Hence, we are able to draw on the wealth of experience and expertise from its associates where necessary.

Principal Engineer - Dr Warren Ng

PhD, Auckland University of Technology 2004
MEngSt , University of Auckland 1998
BE (Civil & Structural), Monash University, Melbourne 1989
BEc, Monash University, Melbourne 1989

Professional Membership
Member of Institution of Engineers Australia (MIEAust 609)
Registered Professional Engineer of Queensland (RPEQ 6555)

Certified High Strain Dynamic Pile Tester (HSDPT) issued by
FQA (Australia) and Deep Foundation Institute (USA)
Registered specialist consultant for dynamic testing (RTA-NSW)
Registered specialist services supplier to Queensland Dept of Main Roads
Specialist sub-consultant to KBR Consultants, Brisbane
Specialist sub-consultant to BECA Consultants, Auckland

Testing Technician - Peter Lam