Geothermal Ground Heat Exchanger Installation
Complete Turnkey Delivery
Geothermal Drilling Australia (GDA) is the only geothermal drilling operator in the country that specialises in the complete turnkey delivery of vertical ground heat exchanger (VGHX) installations, combining deep industry experience with advanced drilling technology and rigorous quality assurance processes. Our team supports commercial, industrial, government, and large-scale residential geothermal projects with precision and reliability, built upon a foundation of unparalleled proven engineering expertise.
Our diverse drill rig fleet and personnel have the capability to complete complex geothermal ground heat exchanger installations anywhere within Australia.
Our Installation Capabilities

Fleet of 36 Drill Rigs
Extensive drilling capacity including air-rotary and dual-rotary systems capable of handling challenging geological formations and varied site conditions across the country.

70 Full-Time Site Personnel
Dedicated team of experienced drillers, technicians, and supervisors ensuring consistent quality and efficient project delivery.

ISO-Certified QA Procedures and Management
Comprehensive quality assurance and quality control protocols aligned with ISO-certified management systems, ensuring safety, compliance, and long-term system performance on every project.

Lateral Piping and Excavation Services
Complete civil works including trenching, manifold installation, and connection of individual ground heat exchangers.

Closed Loop Ground Heat Exchanger Installations
Comprehensive capability in ground-coupled systems including vertical borehole drilling, HDPE probe installation, and pressure testing.

Open and Closed Loop Surface-Water Installations
Proficiency with surface-water heat exchange systems for projects with suitable water body access.

Geothermal Ground Heat Exchanger Project Management
End-to-end coordination from mobilisation through commissioning, managing all aspects of construction, compliance, and stakeholder communication.

Retrofitting and Upgrades of Existing Geothermal Infrastructure
Assessment, repair, and enhancement of underperforming or aging geothermal systems to restore or improve efficiency.

Open Loop Ground Heat Exchanger Installations
Expertise in groundwater-based systems including production and injection well design, drilling, and installation.

Vac-Truck Services
Specialized equipment for spoil management, site cleanup, and non-destructive excavation in sensitive environments.
