Comdain specialises in the construction and maintenance of water treatment assets with experience in complex brownfield environments. By working closely with our clients project and operational teams we have unique insights that enable us to maximise asset functionality and availability.

Dynamic, collaborative and responsive

Our structured approach to project management and the expertise of our national treatment team, often with client-side operational experience, means we see the bigger picture. Our clients have peace of mind that we have a deep and inherent understanding of essential service provision and the governance framework that surrounds the water industry.

Using the latest technology, our treatment projects are first designed in 3D allowing us to refine plans and work closely with our clients on the most minute details before we even get to site. We optimise our design and construction methods to minimise impacts and shutdown times, actively manage risks and are always well planned and highly organised.

We have strategically developed self-perform electrical, mechanical and instrumentation capability to complement our civil expertise and provide surety of outcomes for our clients. This approach not only drives the best value, it allows us to draw on our experience to continually improve the safety and quality of the work we deliver.

Our comprehensive portfolio of experience includes the design, construction, procurement, commissioning and maintenance of all aspects of water and wastewater treatment including:

  • Design / Value Engineering and Optimisation
  • Risk Management
  • 3D design
  • Coagulation/Flocculation
  • Inlet screens
  • Sedimentation/Clarification
  • Grit removal
  • Dissolved Air Flotation
  • Aeration
  • Filtration
  • Clarification
  • Sludge waste handling
  • Chemical dosing
  • Disinfection
  • Reservoirs
  • Odour control
  • Pump stations
  • Conveyance
  • Electrical, instrumentation and controls.

Case Studies

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Yarra Valley Water

screen lift at WTP


Queensland Urban Utilities

More water Capabilities

Distribution Infrastructure

regional irrigation hattah lakes

Water Asset Management Services

view over WTP at gisbourne

Water & Wastewater

neighbourhood renewals

Electrical, Mechanical and Instrumentation

regional view