The Clarke Underground team can project manage your underground service installation.

We specialise in all types of underground construction, have a team of approved, competent licensed operators, and a vast array of top of the range machinery to ensure no job is too big or too small. We cover it all, from the initial stages of research and design, through to service location, and installation/replacement of underground services. This also includes our own traffic management services.

We use a state-of-the-art GPR locator prior to engaging in any ground works. This gives us the confidence to ascertain any existing service cabling and ensures we maintain our goal of zero harm – zero strike.

In the most basic sense, we put the pipe in the ground, and aim to do so with as minimal disruption as possible.

We have installed services for a wide variety of large and small organisations including:

  • DownerUtilities
  • Downer NZ
  • Broad Spectrum Ltd
  • KiwiRail
  • Inspire Net
  • Scan Power
  • Fletcher Construction
  • Fulton Hogan
  • Te Ahu a Turanga
    (Waka Kotahi x Fulton Hogan)
  • Palmerston North City Council
  • Massey University
  • Power Co
  • B&M Electrical
  • Connect 8
  • Max Tarr Ltd
  • Electrix
  • ADS Lines Limited
  • FX Networks
  • Fulton Hogan John
    Holland Joint Venture
  • Telstra Clear
  • Vodafone
  • PEL Contracting
  • Visionstream (now Ventia)

Approved Contractors

We are an approved preferred telecommunications contractor and are PowerCo accredited. We also complete contracts for Scanpower and Chorus.

Traffic Management

We have our own expert traffic management services for our jobs. This allows us to manage moving project timelines easily and remove any potential delays or additional costs from sub-contracting this essential role out.

Our traffic management services include the provision of the client’s on-site traffic

  • Traffic management plans
  • Site set-up and management for:
  • Shoulder closure
  • Priority give way
  • Stop/go
  • Mobile traffic light

Our mobile traffic light is a piece of state-of-the-art equipment for use in temporary traffic control.


Includes civil works and utility service installation. Utility services refer to the various pipe installations required for amenities…


Is a trenchless method of installing underground pipelines, cables and service conduit by drilling non-vertical wells underground…


Is an alternative method of excavation which is often used for potholing around services, piping, cabling and foundation structures…


Is a fast and effective installation method to install long run cable with minimal disruption…