We specialise in the improvement of poor ground conditions and have a proven track record of helping clients achieve a successful outcome – both in terms of required soil properties, ground conditions and overall project solutions.

Our highly qualified Directors Robert McGall and Colin Critchlow take into account every aspect of a project, tailoring each detail to a client’s individual needs to ensure your ground engineering project is completed to a professional standard that meets your expectations.

When you work with Deep Soil Mixing Ltd for project management services, you can relax knowing that we have the expertise to take care of every single feature and phase of your project, including brief, design assessment, soil sample testing, field trials, suitable plant, equipment availability, contracting, scheduling, resources, costs, quality control and risk assessment.

Furthermore, our hands-on and value-added approach allows us to deliver more for less. The in-depth knowledge we have of deep soil mixing ensures we do just what it takes to achieve technical accuracy, including the right depth of injection and rotation speed, the quantities of each mixed batch required and the total installed volume to ensure the the planned ground improvement outcomes are achieved.


Directors Robert McGall and Colin Critchlow are not only highly qualified engineers and construction managers but experienced project managers too. This enables us to provide a complete project management experience that is tailored to your needs and required construction works.

Before we undertake a new project, we take the time to get to know you and your business – how it operates, its culture, challenges and risks as well as those of your proposed project. Any foreseeable issues are tackled from the outset and all arising ones are dealt with immediately and practically with feedback communicated promptly.

Once your project has been discussed, analysed and agreed with our experienced engineers and a plan formulated for the bespoke process then our project management services will assist you at every step of the way.

We will save you time and money by:

  • Using our knowledge and experience to oversee every aspect
  • Reducing risks
  • Improving efficiency of process and plant
  • Innovating for better outcomes
  • Using our gained insight into your business and industry
  • Collaborating with everyone involved
  • Committing to quality throughout


Our project management services are extensive and diverse, as we have the capabilities and proven track record to work with clients across a range of sectors.

Project types we have designed and/or managed include:

  • Ground stabilisation
  • Land remediation
  • Flood protection
  • Pipe line installation
  • Vibration dampening
  • Coastal erosion
  • Sea bed stabilisation
  • River and canal embankment stabilisation.
  • Contaminant barriers

Examples of our completed projects include:

  • Ground improvement for Industrial developments, retail parks, roads, car parks, wind turbines sites, etc.
  • Shear stabilisation of embankments, railways, rivers, roads, etc.
  • Stabilised corridors for installation of services, sewers, pumping mains, water pipes, gas mains, etc.
  • Retaining walls, cantilevered, mass fill, cofferdams, etc.
  • Impermeable cut-off walls, flood embankments, canal walls and bases, cofferdams, containment of contaminants within an area, etc.
  • Permeable reactive barriers for treatment of contaminated ground water.
  • Stabilisation of contaminated ground, locking in contaminants.
  • Vibration control, soil mixed barriers reducing the movement of construction disturbance, high speed trains, etc.

This is why Deep Soil Mixing Ltd’s reputation is for successfully managing, progressing and delivering deep soil mixing works through to completion, and supporting beyond.