About our Darwin drilling company

At Courtsea Pty Ltd, we are the Territory’s local experts in horizontal directional drilling. We’ve been operating in the region since our establishment over 40 years ago.

We are a leading provider in the installation and maintenance of pipelines, cables and ducts including under rivers, roads and rails. Our team is made up of hard rock drilling specialists, accredited underground asset locators, fibre optic installers and experts in copper cable jointing and traffic management.

Our experienced project managers are invaluable to our company. They know the challenges of the Territory’s geological landscape, and how to complete every project efficiently.

We are the go-to people in Darwin. You can trust us with every aspect of horizontal directional drilling, excavation, safety and environmental hazards. We will ensure every project meets health, environmental and safety regulations.

Starting off as a small, family owned and operated company, Courtsea has since developed to become leading industry experts who can quickly analyse a project and provide fast, efficient solutions. We have more than 35 years’ experience in the industry and are committed to exceeding our client’s expectations.

Some of our projects have been Darwin Airport, RAAF & Naval Base, Power & Water, APA Gas, Inpex and various mine sites such as Gemco and Groote Island.  

Get in touch to discuss your requirements.

Our commitment to you

Courtsea is committed to providing a high-quality, efficient and reliable service to our clients. We thrive on finding innovative solutions to meet the challenges that have discouraged other contractors. 

As Territorians, we live in the community we work in and understand the importance of safety for our people and our environment. With this in mind, we are compliant with the following standards:

We work hard to maintain our reputation for great service, attention to detail, adherence to safety and successful completion of projects on time and within budget for all our contracts.

Caring for the environment

The environment in the Northern Territory is unique. We understand that the projects that we work on can have a major impact on our environment and therefore ensure our involvement with the projects comply with the strictest of environmental standards.

We assess the impact of our projects starting from the design phase right through to project completion. This is outlined in the Environmental Policy Statement that we create for every project.

Our team will also take into consideration the environmental standards and practices of our clients. This way we can ensure that every project will meet the appropriate standards of all involved.


CAL Accredited
Power Water Accredited
Telstra Accredited