Expert witness

For many years, senior members of Thomasons have provided expert advice on structural and civil engineering and building surveying issues for a wide range of legal disputes related to the built environment.

Our highly qualified experts have extensive experience and are frequently regarded as leaders in their field. We excel at reviewing complex, technical cases and presenting impartial advice in a clear and concise manner that is easy to understand.

Our experience spans hundreds of cases of all types, from litigation, arbitration and mediation to high profile public inquiries. The majority of actions are civil, although we have also acted occasionally in criminal cases. We act on behalf of claimants and defendants, and also as single joint experts, in cases across the UK and overseas.

Although many of our experts appear in a number of registers, the majority of our work comes from the recommendation of solicitors and barristers with whom we have worked. All of our senior professionals have experience of giving evidence and being cross-examined in court.

We believe that your advisers should not be ‘expert’ experts, but highly experienced professionals who excel in this type of work.

From our extensive portfolio of expert witness cases, the most common ones include:

  • Professional negligence
  • Structural failures and collapse
  • Earthwork failures
  • Accident investigation
  • Personal injury
  • Damage from fire, flood or explosion
  • Mediation of technical disputes
  • Failure of foundations
  • Basement construction
  • Flooding and flood risk assessment
  • Site appraisal and investigation issues
  • Drainage
  • Landlord and tenant
  • Major losses
  • Building dilapidations and want of repairs

For all expert witness enquiries, please email us at