Professional Soils Laboratory (PSL Ltd)

Established in 2004, The UK's leading Professional Soils Laboratory (PSL) are now proudly part of the Phenna Group.

Geotechnical & Materials Testing Specialists

Professional Laboratory and Field Testing for Industrial & Domestic Projects

Established in 2004, The UK's leading Professional Soils Laboratory (PSL LTD) are now proudly part of the Phenna Group. Our 50 strong geotechnical and materials testing laboratory is based in Doncaster, South Yorkshire, offering a great range of classification testing services. We also have the ability to house large amounts of samples in our on-site Warehouse.

State of the Art Testing Laboratory

The Prosoils UKAS 4043 accredited laboratory in Doncaster is fully equipped to quickly deliver all material testing requirements for civil engineering purposes. Our laboratory team can test on soil, rocks and aggregates in accordance with all BS and associated industry standards.

In-Situ and Field Testing

Our expert team of Field Technicians work nationwide to offer a rapid and professional In-Situ Testing service including Plate Bearing Tests (PBT) and California Bearing Ratio (CBR). 

A Lab Technician managing the shear box testing room

Why choose Prosoils?

  • Complete and Supported Projects
  • UKAS Accredited Laboratory
  • In-Situ Testing
  • Latest Equipment & Technology
  • Helpful and Knowledgeable Team
  • Simple and Easy Reporting
Testing services on offer
Chemistry Icon

Classification Testing

We offer up to date Classification Tests to distinguish soil, rock and aggregate compounds to view the variety of components of each sample.

California Bearing Icon

California Bearing Ratio

We offer California Bearing Ratio (CBR) Tests for the civil engineering sector to help design and plan the thickness of road and pavement construction.

Soil Compaction Icon

Plate Bearing Test

We provide Plate Bearing Tests which determine the maximum bearing capacity of the soil and rocks underneath your area of work.

In the PSL Warehouse

Large Warehouse

We are able to offer large scale storage at our Doncaster Head Office. Suitable housing our client samples for easy access when testing.

The PSL Team outside the Doncaster Head Office and Warehouse

60 Employees

We currently employ some of the industries best laboratory and in-situ field testing technicians, backed up with some great office staff.

Permeability Testing in our laboratory

The Latest Permeability Testing Machines

We are pleased to be able to offer use of the latest materials testing machinery and techniques in our state of the art laboratory.

A Lab Technician overseeing a point load test of a rock sample

Point Load Testing Capabilities

Using the very best in Point Load Testing, our apparatus and procedures are all accredited.

A Lab Technician washing a Soil Sample

Professional Soil Density Techniques

We use both the Excavation and Coring method for testing soil density.

Automated Shear Box Testing Machine

Shear Box Testing

Using the latest technology we can help determine the shear strength of a soil sample quickly and efficiently.