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We continue to use Online for their reliable and timely service. Their modern CCTV equipment and experienced operators are great.


Woolhara Council

I’ve used OnLine’s services for close to 23 years. We have built a great working relationship based on efficient and professional service and I will continue to use OnLine.


D & W Plumbing

We have a long held relationship with OnLine, they have very experienced operators and their availability is fantastic.


A & G Professional Plumbing

OnLine are a great team to work with. Their prompt timing, friendly service and cutting edge technology suits our business requirements accurately.


Robson Civil

I have been working with Online for many years. I am impressed with their modern equipment and availability. Their operators are always on time and get the results we need.


Blacktown Industrial Plumbing

I appreciate OnLine’s availability, professional service and the great results we can achieve with the modern equipment they use.


SN King Plumbing

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How underground locators work


Depending on the site, there is a variety of technology available for locating underground assets. But how do underground locators work?

In this article, Understanding locators 101 (Ehm, 2011), a good explanation of how different locators work is provided, as well as how locating technology can save time and money on site.

It should be noted that in Australia, the first port of call should be making contact with Dial Before You Dig (Tel: 1100) as the first step to locating underground assets. 

    Ground Penetrating Radar on a road surface

    and-held Locator on Construction site

    Ground Penetrating Radar

The team at Online Pipe & Cable Locating use hand-held locators and Ground Penetrating Radar (GPR) for locating pipes, cables and other underground assets. The decision about which technology to use will depend largely on:

  • the condition of the site (flat, sloping, hard surface, bumpy, etc.)
  • the surface structure (eg. concrete slab, road, footpath, earth, etc.). 

This is why we believe it is essential to take time to ask the right questions, at the outset, in order to understand the customer's needs and the unique requirements of the site and project.

Should you have any questions or require further information, please call the team at Online Pipe & Cable Locating.

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Source:  Ehm, G., 2011. Understanding locators 101. [Online] Available at: [Accessed 8 December 2015].