Get independent soil testing from GSTL's UKAS-accredited laboratory (UKAS accreditation applies to the activities listed on our Schedule of Accreditation here).

You receive accurate results that support design decisions, planning, and compliance. We offer a practical, cost-effective service and clear reporting, so you can keep your project moving.

UKAS-Accredited Soil Testing You Can Rely On

Our laboratories are equipped to deliver soil testing for a wide range of projects. Testing is completed to recognised standards, and we focus on results you can use with confidence. *UKAS accreditation applies to the activities listed on our Schedule of Accreditation.

How Can Soil Testing Help Your Project?

Soil testing provides measured data on your site's materials. It can help you to:

  • Determine suitability for building and structural support
  • Inform the options appraisal and the design stage
  • Identify different soil types and variability across a site
  • Assess key characteristics linked to strength, compaction and density
  • Support planning applications and technical reporting

*For a full list of our UKAS-accredited activities, please visit our Schedule of Accreditation.

Soil Testing Services & Common Test Types

We provide a broad range of soil testing to national and international standards. Our services commonly include:

Classification Testing (BS 1377 and BS EN 17892)

  • Water Content,
  • Atterberg Limits,
  • Particle Density,
  • Particle Size Analysis
  • Bulk/Dry Density.

Earthworks & Landfill Testing (BS 1377 and BS EN 17892)

  • Compaction Testing,
  • Moisture Condition Value (MCV),
  • California Bearing Ratio (CBR),
  • Stabilisation Trials,
  • Permeability Testing Requirements.

Settlement & Strength Testing

  • Consolidation Testing,
  • Swelling Pressure & Swell/Heave Potential Testing,
  • Unconsolidated Triaxial Testing,
  • Shear Box Testing,
  • Ring Shear Testing,
  • Unconfined Compressive Strength.
How We Support You
  • You share your project details and test requirements
  • We confirm the right test schedule and standards
  • We complete testing in our *UKAS-accredited laboratory.
  • You receive your results and report for design and compliance use

What We Do

We provide independent soil testing to support design, planning and compliance. Your samples are tested in our UKAS-accredited laboratory, (*UKAS accreditation applies to the activities listed on our Schedule of Accreditation). and you receive clear results you can use for decision-making and project documentation.

Lightweight Deflectometer (LWD) Testing

Get in Touch

Get in touch to learn about the laboratory testing services from GSTL.

Frequently Asked Questions

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