As Sydney Water Accredited Major Works Constructors, CBK have extensive experience in the installation of mains and infrastructure for both private and public clients.

  • Pressure and gravity pipe installation (trench, bore, drilling)

  • Pipe welding and jointing (electrofusion, butt welding, clamping and bolting)

  • Air valve and ventilation shaft installation

  • Barometric loop assembly

  • Valve installation

  • Pressure sewer tank installation (residential, industrial, commercial)

  • Pit and manhole installation (pre-cast, cast-insitu)

  • Gross Pollutant Trap construction (installation and assembly)

  • Kerb lintel form and pour


CBK is experienced in civil works of all kinds, handling trenching, drilling, micro excavation, tight access excavation, bulk excavation, landscaping, land remediation and other custom works in all ground conditions.

  • Land shaping and resurfacing

  • Retaining structures

  • Rock excavation

  • GPS controlled excavation

  • Concrete works (footings, pads, blinding slabs, plinths, paving, footpaths)


With decades of experience in detailed service locating and identification, CBK are renowned for our attention to detail and safety performance. 

  • Electronic scanning

  • Non-destructive digging and potholing

  • Vacuum excavation and pot holing

  • GPS tracking for design and work as constructed record



Past & Present Clients
John Holland Group
Downer EDI
Seymour Whyte
Fulton Hogan Construction
Lendlease Services 
Robson Civil Projects
Comdain Infrastructure
Duratec Australia
Sydney Harbour Federation Trust
Sydney Water Priority Sewerage Program Alliance


CBK is a proud indigenous owned business who offers complete engineering, construction and project management services from the NSW South Coast.

From humble beginnings in 2005 with only three employees, CBK has worked hard to become a leading engineering and construction company delivering major infrastructure projects throughout NSW, for government and private sector clients. We now have a diverse highly skilled workforce, and have an extensive fleet of company-owned specialist plant and equipment items.


CBK has always taken pride in the fact that we deliver projects safely, with minimal environmental impacts, and with respect for local communities.

Major infrastructure projects awarded to CBK have increased significantly, as has the size, reach and complexity of these projects. In addition to our core capability area of roads and water infrastructure, we are experienced in the delivery of engineering and construction services for the marine, building, communications, renewable energy and heritage management sectors.


CBK has developed a certified management systems to achieve and maintain our high standard of customer satisfaction and business operations.  Our systems comply with the following Standards:

  • Safety - AS/NZS 4801:2001 (45001:2018 compliant)

  • Quality - AS/NZS ISO 9001:2016

  • Environment - AS/NZS ISO 14001:2016 

In addition CBK have attained the following pre-qualifications:

  • Supply Nation Certified

  • NSW Government WHS Management and Auditing Guidelines 5th Edition Compliance

  • Sydney Water Quality Specific Product Plan Guidelines Compliance

  • Roads& Maritime Services (RMS) Prequalified Contractor




For any inquiries, questions or commendations, please call or fill out the following form:

Head Office

2/51 Rowlins Road, Gerringong NSW 2534

PO Box 52, Gerringong NSW 2534



To apply for a job with CBK, please send a cover letter together with your C.V. to:

Phone: 1300 CBK 100 (225)
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© 2020 by CBK Constructions Pty Ltd.