QEST is a leading provider of environmental drilling services throughout Melbourne, Geelong, Victoria, and interstate. With over 2 decades of experience, our team delivers environmental drilling solutions with unparalleled results and calculated problem solving.
Our licenced drillers stand out for their commitment to client satisfaction, clear communication, and the successful, timely delivery of our services. We differentiate ourselves by offering a single point of contact for all your project requirements: “One call does it all”.
We set ourselves apart by offering a single point of contact for all project phases, from initial site investigation to remediation and beyond, to ensure a streamlined and personalised client experience – “One call does it all”.

Using a range of modern and effective drill rigs, our accredited technicians provide precise and reliable environmental monitoring and sampling services.
QEST is a leading provider of environmental drilling services throughout Melbourne, Geelong, Victoria, and interstate. With over 2 decades of experience, our team delivers environmental drilling solutions with unparalleled results and calculated problem solving.
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At QEST, we are proud to be the forefront providers of geotechnical drilling services in Melbourne, Geelong, across Victoria, and interstate. With over 2 decades of experience, our team delivers geotechnical drilling and sampling solutions that meet the highest standards of quality and precision.
Find Out More →We understand the critical role that accurate and reliable geotechnical data plays in the success of any project.
Environmental drilling is a key process to investigate and understand the subsurface environment, critical for identifying contamination and ensuring the safety of land development projects.
QEST’s environmental drilling services deliver an accurate evaluation of subsurface conditions, essential for informed decision-making and effective project planning.
Geotechnical drilling is the foundation for safe and successful construction projects.
Conducting environmental drilling before property development offers significant benefits, including the early identification of potential environmental hazards, which informs planning and design decisions.
Geotechnical drilling and sampling underpin the entire construction process, by informing design and risk management decisions that lead to stable and durable constructions.
QEST delivers environmental drilling services that strictly comply with these regulatory frameworks, and we pride ourselves on our commitment to exceeding compliance standards.
Our experienced team delivering specialist drilling services on real projects across VIC, SA, and QLD.


Talk to our experienced team about your project requirements.
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Whether your project’s in VIC, QLD or SA, you’ll get the same trusted QEST team — experienced, equipped and ready to deliver. Our network keeps us close to your site and connected across every phase of the job.
29 Saunders Street
North Geelong VIC 3215
20 Radnor Drive
Deer Park VIC 3023
79 Indian Drive
Keysborough Vic 3173
10 Alfred Avenue
Beverley SA 5009
5/65 Tonka Street
Luscombe QLD 4207