Geotechnical Drilling & Rock Coring
Reliable ground data for confident foundation decisions
Real ground evidence, not surface assumptions
Surface conditions rarely match what lies at foundation or excavation depth. Without direct evidence, that uncertainty can surface later as costly redesigns, delays or unexpected site conditions during construction.
Borehole drilling and rock coring recover material from the depths that matter most to your project. Every layer is logged on site, and our engineers select the samples best suited for laboratory testing to support accurate, detailed design.
Drilling and Coring Scope
Borehole drilling
Boreholes create a direct, continuous record of soil and rock layers at the depths your foundation, excavation or engineering assessment requires.
Soil sampling
Representative soil samples are recovered from selected depths for laboratory testing of their physical and engineering behaviour.
Rock coring
Rock cores reveal bedrock depth, condition, structure and strength, informing design and excavation planning in rock.
Engineering logging
An experienced engineer logs every material change, layer boundary, sample depth and groundwater observation as drilling progresses.
Laboratory testing
Selected samples move straight to Geotesta's in-house NATA-accredited laboratory for testing to your investigation's exact requirements.
Standalone drilling
Need drilling only? We can deliver drilling, sample recovery and engineering logging to support consultants managing the wider investigation.
Fieldwork and testing under one roof
Frequently Asked Questions
They’re used on projects needing a detailed geotechnical investigation, where direct evidence of soil and rock conditions at foundation, pile or excavation depth is essential.
Depth depends on the proposed construction type, expected ground conditions and your project’s design requirements. Geotesta sets the drilling scope after reviewing your project details.
Rock cores reveal bedrock depth, condition, structure and strength properties, supporting foundation, pile and excavation design for underground works.
Yes. Geotesta can deliver drilling, sampling, recovery and engineering logging on its own, supporting your team or consultants managing the broader investigation.
Every sample is logged on site, and selected material is sent to Geotesta’s in-house laboratory for testing to meet the investigation’s requirements.
Yes. Geotesta provides drilling, sampling and engineering logging services that integrate with an existing consultant or project team.