22 boreholes across 5 Greater Sydney sites in 4 days. Progressive bore logs issued as each site completed. One drilling subcontractor, consistent field procedures throughout.
Geotechnical Drilling Subcontractor for Consultants in Sydney & NSW
TerraForma Drilling is a geotechnical drilling subcontractor serving consultants throughout Sydney and NSW. We handle drilling, sampling, and in-situ testing according to your schedule, providing field support while you keep control of client relationships, interpretation, and reporting.
We Drill. You Interpret. Your Client Stays Yours.
We drill your boreholes, follow your bore plan, and hand over your field data.
TerraForma is a dedicated drilling subcontractor for geotechnical consultants. We handle the fieldwork at simple, transparent pricing with no surprise fees, no hidden charges, and everything upfront, while you keep full ownership of the investigation and project results.

Built for Challenging Access & Complex Programmes
- Sub-3m gate access
- Low-clearance structures
- Staged construction sites
- Night drilling available
- Regional NSW mobilisation
- Multi-location investigation programmes
Complete Field Services Delivered to Your Investigation Requirements
Tight-access auger drilling using our ute-mounted rig, with bulk disturbed and U50 undisturbed sampling completed to your specified depths and requirements.

Subcontracting Process: Supporting Investigation From Start to Handover
Send Your Bore Plan
Provide your bore locations, depths, testing requirements, access information, and investigation programme.
Quote & Mobilisation
We review your scope, send a clear quote, complete DBYD checks, and bring the right equipment to your site.
Drilling, Sampling & Field Data Collection
Our crew handles drilling, SPT and DCP testing, sampling, and any other agreed tasks, as per your programme.
Data Handover & Project Completion
We hand field records, borehole details, and testing data directly to your chosen contact. Our job ends with field delivery, so you keep reporting, interpretation, and your client relationship.
Compliance, Safety & Project Readiness: A Pre-Qualification Checklist
Bore plans followed exactly, including site-specific investigation requirements and DBYD completion before drilling.
Well-maintained equipment, with maintenance records available on request.
Tier 1 project readiness, including hydraulic interlocks, documented maintenance schedules, and service records.
ISO 9001, ISO 14001, and ISO 45001 certified management systems.
SWMS, safety documentation, and project compliance records available when required.
24-hour mobilisation across Greater Sydney with responsive support throughout NSW.
Why Geotechnical Consultants Choose TerraForma Drilling
We Never Compete With You
Our business is built on subcontract support. We do not give consulting advice, write reports, or contact your clients.
Built for Sydney's Difficult Access Sites
Our ute-mounted drilling platform can reach places where larger rigs cannot, such as narrow suburban sites, restricted-access areas, low-clearance spaces, and staged construction projects.
Drilling by Engineers, for Engineers
We know how important field data is for engineering decisions. Our crews follow your investigation goals, testing schedules, and technical requirements.
Pre-Qualified, Certified, and Ready
We have ISO-certified systems, maintenance records, hydraulic safety systems, and WHS documentation to meet strict compliance requirements.
Typical Investigation Programmes We Support
Need a Drilling Team That Works Like Part of Your Consultancy?
Stay on schedule stress-free with TerraForma's expert drilling, sampling, and testing services that integrate directly with your project workflows.
Common Questions
No. TerraForma only acts as a geotechnical drilling subcontractor. We handle drilling, sampling, and testing, then give the field information directly to your chosen consultant for interpretation and reporting.
Yes. We follow your bore plan, chosen depths, testing intervals, and project needs. Our job is to deliver accurate fieldwork while your consultancy handles engineering interpretation and client communication.
Yes. Our ute-mounted drilling platform is designed for sites where larger rigs cannot easily operate, such as narrow corridors, residential lots, low-clearance areas, and tight construction sites.
Yes. We offer calibrated Standard Penetration Testing (SPT) as part of our geotechnical drilling services across Sydney and NSW, in accordance with your specified testing intervals and investigation needs.