Soil Testing Services for Construction and Engineering Projects
Ground conditions can influence a wide range of construction and engineering applications, including earthworks, foundations, pavements, drainage systems, and wider infrastructure. Whether standalone or part of a larger development, independent testing provides essential information about material behaviour, including strength, moisture content, density, and composition.
At CTS, we offer soil testing through both laboratory analysis and on-site assessment, carried out in accordance with applicable British and European Standards. From individual samples to wider investigation and testing programmes, our teams can determine soil properties, classify materials, and produce accurate data to support safe, compliant, and well-informed engineering decisions.
Our On-Site Testing and Laboratory Analysis
We provide laboratory and on-site testing to evaluate material properties, engineering performance, and suitability for different construction uses. All testing can be tailored around the project stage, site conditions, and information required.
Our soil testing services include but are not limited to:
- Moisture content
- Density and Compaction
- Particle size distribution
- Plasticity and liquidity
- Strength and bearing capacity
- Shear strength
- Stability
- Permeability and drainage
- Chemical and environmental analysis
- Classification suites
- Stabilisation
Working with an independent materials and soil testing provider like CTS gives project teams trusted, impartial data to reduce uncertainty, identify potential issues earlier, and enable safer, more efficient delivery with less risk of delays and unnecessary remedial costs.
Integrated Soil and Ground Investigation Services
Soil testing often forms part of a broader ground investigation or materials assessment. We can help with related requirements for earthworks, foundations, stabilisation, and environmental testing.
Earthworks Testing
Where soils will be excavated, reused, or placed within earthworks, the CTS team can deliver a range of tests to improve decision-making around material suitability, design, and control.
Soil Stabilisation
If site-won soils need improvement before reuse, our specialists can prepare and analyse samples to establish site-specific mix design, then provide post-stabilisation validation.
Foundation and Ground Assessment
Our soil tests for foundation and ground investigation assess the conditions beneath a proposed or existing structure, identifying soil properties, soil behaviour, and tree roots.
Environmental Soil Testing
Where contamination or chemical conditions may affect a site, our environmental soil testing can provide additional information about the materials present and how they should be managed.
Need support with soil testing for construction or foundation design? Contact the CTS team to discuss your requirements and request a quote today.
UKAS-Accredited Lab Services and Comprehensive Support
CTS operates a nationwide network of laboratories and field-based teams, providing trusted soil testing services for construction and engineering projects throughout the UK. Our services are underpinned by ISO/IEC 17025 UKAS-accredited laboratories, decades of industry experience, and a commitment to safer, smarter, and more sustainable project delivery.
Our technical specialists can also advise on appropriate test selection and interpretation of the results. This depth of expertise, extensive capability, and responsive customer service make CTS perfectly placed to help you understand ground behaviour and make confident decisions across construction, infrastructure, and land development projects.
Why Choose CTS?
- Reliable, nationwide laboratory and field-team coverage
- Broad laboratory and on-site materials testing capability
- Experienced soil testing engineers across a range of site types
- UKAS-accredited laboratories for applicable test methods
- Tests conducted to relevant British and European Standards
- Integrated earthworks, stabilisation, and site investigation services
- Clear, accurate reporting and responsive technical support
Get in touch with a member of the CTS team today, and we’ll be more than happy to answer any questions you may have regarding our services and how we can help you.
Contact us for Soil Testing Services
Soil Testing FAQs
What is soil testing?
Soil testing examines properties such as moisture content, density, grading, plasticity, strength, and composition. The results help project teams understand how soil is likely to behave and whether it is suitable for a particular construction or engineering use.
Why is soil important in construction?
Soil forms the ground beneath foundations, roads, earthworks, and other structures. Its strength, moisture behaviour, density, and composition can influence settlement, bearing capacity, compaction, and long-term performance, making reliable soil data an important part of many construction projects.
What is the purpose of soil testing in construction?
Soil testing services produce factual information about ground and material properties before or during construction. Results can support foundation assessment, earthworks, material classification, compaction control, drainage considerations, and wider engineering decisions.
What is a soil test for foundation construction?
A soil test for foundation construction examines properties of the ground that may affect how structural loads are supported. Depending on the project, this can include strength, bearing capacity, moisture, density, settlement characteristics, and soil classification.
Where is soil analysis carried out?
CTS carries out comprehensive testing services through our network of laboratories and field-based teams across the UK. Samples can be analysed in our soil sampling laboratory, while in-situ testing can also be carried out directly on site. We cover the whole of the UK, from John O’Groats to Lands End, Corrachadh Mòr to Ness point.
What is environmental soil testing?
Environmental soil testing evaluates chemical and other properties that may indicate contamination or affect how soil should be managed. It can support brownfield development, remediation, waste classification, and projects where environmental ground conditions need to be understood.
What's the difference between soil testing and earthworks testing?
Soil testing focuses on determining the properties and behaviour of the soil itself. Earthworks testing applies those and other test results to the classification, placement, compaction, and suitability of materials used within earthworks.
What's the difference between soil testing and soil stabilisation testing?
Soil testing services establish the existing properties of a material. Soil stabilisation testing goes further by evaluating whether those properties can be improved through treatment, typically using binders, and then verifying that the treated material achieves the required performance.
How much does soil testing for foundation construction cost?
Costs will depend on the number and type of tests required, the samples available, whether site work is needed, and the complexity of the ground conditions. Contact CTS with your project requirements and our team can recommend an appropriate testing scope and provide a quotation.
