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‚Äč***We are currently have a vacancy for a technician to work on site and in the laboratory. Please email CV's to if you are interested.***

K4 Soils is an independent company offering advisory, laboratory and field services within the geotechnical engineering and allied disciplines. K4 Soils is a UKAS accredited laboratory. We have been  in operation for over 18 years and with the our extensive knowledge of soil testing and foundation design we are able to help  our clients choose the most appropriate testing for their needs.


We have facilities for all physical, chemical and specialized (effective stress) tests. We have many test apparatus including, oedometers, triaxial compression, pore pressure measurement equipment with triaxial, shear box, unconfined compression tests, permeameter, laboratory vane and laboratory CBR (california bearing ratio).

We use software from Key Lab Systems, GDS Instruments and our in-house programmes to provide clear and accurate test results. We also offer our results in AGS format.


***NEWS 2015***

We are now able to offer electronic scheduling to our clients using AGS4 to assist in the rapid and accurate transfer of data to laboratory reports, eliminating any data transcript errors.  This also ensures accurate transfer of AGS Data (version 3.1 or 4.0) on completion of a project.    Our ability to offer this new service will be particularly essential for any clients working on HS2 as AGS4 and electronic data transfer are understood to be an important requirement for this prestigious project.  Please contact for more details.

K4 have recently achieved UKAS accreditation for a number of electrochemical tests including water soluble and total sulphates on soil and groundwater, pH and mass loss on ignition. 


For more information please contact us on any of the following:

Phone - 01923 711288

Address -

Unit 8, Olds Close

Olds Approach


WD18 9RU

Email address -