At GSTL Ltd, our UKAS accredited laboratories are well-equipped to provide soil testing services for all projects. We provide bespoke and cost-effective solutions for soil testing, enabling a fast turn-around of accurate and informative results 

Independent Soil Testing  

Our specialist laboratory provides a broad range of high-quality soil testing that meet national and international standards.  

Whatever industry you work in, GSTL can assess the suitability and quality of your soil to help inform your planning and decision-making. 

Benefits of Soil Testing 

By examining the geotechnical and chemical properties and characteristics of your site’s soil, our UKAS accredited laboratory can help you: 

  • Determine the soil’s suitability for building and structure support
  • Inform options appraisal 
  • Inform the design and planning phase
  • Identify different soil types and locations
  • Run tests for strength, compaction, density, contamination etc.

The reports will also provide you with critical data needed when applying for planning permission and license applications. As well as when writing technical or health and safety reports later in the project. 

Sorting of soil testing trays

Soil Testing Services  

Our suite of soil tests include: 

Classification Testing BS 1377 Part 2  

  • Moisture content
  • Atterburg limits
  • Particle density 
  • Particle size analysis
  • Bulk/dry density
  • Soil suction

Earthworks & Landfill Testing

  • 10 fully automated triaxial permeability systems
  • 2.5Kg compaction
  • 4.5Kg compaction
  • Vibrating hammer compaction
  • Moisture Condition Value (MCV)
  • California Bearing Ratio (CBR)
  • Stabilisation trials 
Soil Testing

Settlement & Strength

  • 21 digitally logged, one dimensional consolidation frames
  • One dimensional consolidation properties
  • Swelling pressure & swell/heave potential testing
  • Unconsolidated undrained triaxial testing
  • Unconfined compressive strength
  • 12 shear boxes (60 mm)
  • 2 Large shear box testing 
  • Ring shear testing 
  • Peak and residual testing 

Effective Stress Testing

  • 12 No. state of the art, fully instrumented automated systems
  • Undrained or drained test conditions
  • 100 mm and 38 mm cells

Need more information on our soil testing services? Whether you need site testing or laboratory testing, or simply require a list of the testing GSTL can supply, please fill out your details and we'll be in touch. 


Soil Testing