Directional drilling specialists for the past 40 years

Thrust Boring Darwin​

Case Boring

At Courtsea Pty Ltd, we’ve been the local specialists in directional drilling since our establishment.

With more than 40 years’ industry experience, it’s no surprise we’re the most trusted drilling, earthworks and excavations company servicing the Northern Territory. Our company started as a small family owned and operated operation and has since grown to become a leading team of industry experts.

We are accredited utility installers and underground asset locators. We also install fibre optics, communication lines, sewer pipes, electrical conduits and water mains. With our equipment we can provide installation and maintenance to all areas, including under rivers, roads and rails.

Our project managers will ensure your plans stay on track. We have the expertise to identify any geological challenges or environmental hazards that could pose a risk to the project and staff. Read more about us! 

Call now to get started and see how we can help complete your project.

Drilling in Howard Springs

When you choose Courtsea, you won’t need to hire multiple contractors for your project. We provide a comprehensive service package, so our clients don’t have to worry about arranging multiple services. We’ll take care of everything from the site surveying and design, through to the trenching, construction and installation.


Find out what horizontal direction drilling is and how our team locates underground utilities without damaging the surface by reading through our answers to frequently asked questions. If you’ve got a question of your own, contact us!

        View our gallery of past completed large scale civil construction and industrial projects across the Northern Territory.


I had the pleasure of working with Damo on the Thor job out of Alice in recent weeks and I just wanted to drop you a quick note.  The quality of work from your company employee Damo was excellent and although I am fairly new to this industry it is the best work I have seen on a drill site.  Damo put in an excellent effort with long hrs worked and was a very personable fella. The quality of the rehab was excellent.At XM Logistics we do a large variety jobs for clients and quite often from smaller Mining operations get asked for company referrals. We have a base of operations in Alice Springs and Malaga Perth ( where I am based ) I will have no hesitation recommending your company for future work.

 – Adam Wilkinson – XM Logistics