Design consultants

Engineers & Design Consultants

Provide evidence-based data to support all of your design assumptions

Good design relies on data that has been collected, analysed and used as evidence to support the findings. Geotesta assists civil, structural, geotechnical and multi-disciplinary consulting firms to provide investigation, testing, analytical and monitoring services that translate site conditions into practical input to aid the engineers' designs.

Use project data, not broad assumptions

Designers may rely on limited investigation, narrow testing parameters or unclear reporting to justify conservative assumptions. These gaps are often found only after review, tender or construction has begun, when design changes become far harder to make.

Geotesta helps the design team define the engineering question, then selects field and lab techniques that yield usable parameters. Findings can support foundations, retaining structures, pavements, earthworks, tunnelling, slope stability or buried utilities.

One partner across all of your project work

Scoping and Investigation

Develop a collaborative scoping document with the design team. Complete desktop studies. Conduct targeted field activities and direct the efforts towards those parameters and risks that impact the design.

Testing and Analysis

Use in-place methods such as laboratory testing methods to collect measurable data related to strength, stiffness, deformation, permeability and behaviour of various soils and rock materials.

Verification and Monitoring

Perform construction supervision services. Test piles. Install instrumentation. Compare actual performance with assumed behaviours as defined in the design documents and agreed-upon criteria.

Data for the design question

Geotechnical Investigation

Investigation of soil, rock, fill and groundwater to define the ground conditions your design, budget and program depend on.

Geotechnical Site Investigations

Phased site investigation that replaces guesswork with validated ground data, giving your project team recommendations they can design and build on.

Detailed Site Investigation (DSI)

Sampling and analysis that define what contaminants are present, where they sit and how far they extend.

Preliminary Site Investigation (PSI)

A desktop and site review that identifies whether contamination may be present and whether further assessment is needed.

Drilling and Rock Coring

Borehole drilling and rock coring that recover soil and rock samples from depth for engineering logging and testing.

Soil & Rock Testing

Laboratory testing that turns recovered soil and rock samples into reliable strength, movement, permeability and compaction parameters.

Hydrogeological Assessments

Assessment of how groundwater occurs and moves beneath your site, and what that means for development, excavation and dewatering.
In-situ Testing (Pressuremeter and specialty testing)

In-situ Testing (Pressuremeter and specialty testing)

Pressuremeter and other specialised in-situ tests that measure how soil and rock behave in place.

Site Classification (Residential, Commercial & Industrial)

Assessment of geology, soil behaviour and site characteristics to produce a clear classification and practical advice on next steps.

Pile Testing and Piling Supervision

Supervision during pile installation and integrity testing afterwards, giving deep foundation works verified oversight from start to finish.

Compaction Control & Ground Preparation Supervision

On-site supervision and density testing of earthworks, confirming fill and subgrade are compacted to specification before construction continues.
Road Pavement Investigations

Road Pavement Investigations

Layer-by-layer assessment of pavement and subgrade condition, so maintenance, rehabilitation or reconstruction targets the real problem.
Earth Retention & Soil Stability Solutions

Earth Retention & Soil Stability Solutions

Investigation of ground conditions and slope geometry to flag instability early and recommend practical retention or stabilisation.
Numerical Analysis

Numerical Analysis

Geotechnical modelling that tests how your design responds to load, excavation and groundwater before construction begins.

Geotechnical Inspection and Supervision

On-site inspection and supervision that verifies ground conditions, earthworks and foundations meet design and specification during construction.

Soil Index Properties Testing

NATA-accredited index testing that measures particle size, plasticity, moisture, pH and density to show how soils will behave on site.

Aggregate Testing

NATA-accredited laboratory testing of aggregates, crushed rock and source rock to confirm particle size, material characteristics and specification compliance.

Environmental Due Diligence

A review of site history and available evidence so you understand contamination risk before committing to a purchase.
Waste Classification

Waste Classification

Sampling and laboratory analysis that determine how excavated material must be managed, reused or disposed of.
Sodic Soil Assessments and Management Plans

Sodic Soil Assessments and Management Plans

Testing that identifies dispersive soils and sets out how to manage erosion, runoff and downstream impacts during development.
Underground Petroleum Storage System (UPSS) and Underground Storage Tank (UST) Assessments

Underground Petroleum Storage System (UPSS) and Underground Storage Tank (UST) Assessments

Investigation of suspected or known petroleum impacts from buried fuel tanks, defining the extent and the action required.

Groundwater Well Installation and Monitoring

Installation and monitoring of groundwater wells that define water levels, quality and movement beneath your site.
Tunnel Instrumentation and Monitoring

Tunnel Instrumentation and Monitoring

Instrumentation and monitoring for tunnelling that tracks ground movement and structural response as works progress underground.
Geotechnical Instrumentation

Geotechnical Instrumentation

Installation and monitoring of geotechnical instrumentation that measures ground movement, load and groundwater so changes are detected early.
Environmental Instrumentation

Environmental Instrumentation

Installation and monitoring of environmental instrumentation that tracks groundwater, ground gas and site conditions across the life of your project.

Mining Instrumentation

Instrumentation for mine sites that measures ground behaviour as excavation advances, comparing actual conditions against predictions to flag emerging trends.

Cloud-Based Real-Time Data Collection

Automated, cloud-based monitoring that captures more frequent readings than manual checks and makes site data available for offsite review between visits.
Why Clients Choose Geotesta

20+ years. 15,000+ projects. One connected team

Geotesta brings all specialists together under one roof. An owned equipment fleet and in-house NATA-accredited laboratory reduce handovers and delays caused by third parties, while clearly written reports support practical design decisions.

Reduce Project Risk

Identify potential ground issues early to minimise costly surprises, delays and design changes.

Keep Projects Moving

Fast investigations, responsive site attendance and timely reporting help maintain project timelines.

Build with Confidence

Accurate practical engineering advice support informed decisions from planning through construction.

Trusted Technical Expertise

Benefit from NATA-accredited laboratory testing, experienced engineers and reliable Australia-wide support.

Accreditations

Trusted. Certified. Backed by Industry Leaders.

Fast report turnaround sets Geotesta apart, giving your team the evidence needed to keep decisions and projects moving. You will receive an obligation-free, transparent quote with the scope, costs and expected delivery timeframe clearly defined. NATA-accredited laboratory testing, ISO 9001 and ISO 45001 certification, transport authority prequalification, supplier panel approval and relevant professional affiliations provide further confidence through procurement, technical review and regulatory scrutiny.

Queensland Government
V/Line
Australian Geomechanics Society
Engineers Australia
NATA Technical Competence
LGCA Approved Supplier
Local Government Procurement
Transport for NSW

Frequently Asked Questions

Your questions weren't answered by these?

Yes. The geotechnical investigation team at Geotesta will review all relevant project information including drawings, loadings, geometry, available information and your design questions prior to recommending field investigation locations, investigation depths, field testing methods and required laboratory testing.

Yes. Geotesta can conduct a range of specialised field investigations, including pressuremeter testing, thermal and electrical resistivity testing, dynamic cone penetration, lightweight drilling and wash boring, and falling weight deflectometer testing. Other targeted investigation methods can also be arranged where appropriate to the project.

Yes. Geotesta operates a NATA accredited laboratory for testing soil, rock, and construction materials. This means we are able to reduce handovers to third parties and improve communication and coordination between our field teams and laboratory staff.

Yes. We will review the existing information and identify if it can be appropriately used to address your design questions. Where the existing information cannot adequately answer your design questions, we will recommend targeted additional investigations.

Yes. Monitoring instrumentation can be used to compare measured ground movements, settlements, deformations, groundwater or vibrations to predicted behaviour and agreed-upon thresholds.

Yes. Geotesta can inspect exposed conditions, complete targeted testing and provide updated interpretation when construction reveals conditions that differ from the original model.

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Build the design on evidence from the site

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