Leach Group is a leading authority in construction contractual and commercial matters with over 50 years experience in the commercial management of all types of construction projects throughout the UK and worldwide.


As a part of our specialist services we provide expert witness opinion and testimony as Quantity Surveyors for both technical and quantum issues on construction disputes in litigation, arbitration and the various Alternative Dispute Resolution forums.


We at Leach Group have in-house professionally qualified quantity surveyors that are able to provide Expert Witness Testimony and Expert Opinion on quantum matters.


We can assist in the following ways:

  • Quantification and valuation of work carried out
  • Quantification of damages, loss and/or expenses occurred
  • Liability in Professional Negligence matter
  • Liability in Professional Indemnity matters
  • Programming issues, e.g. delay, extension of time, acceleration and disruption
  • Due diligence forensic examination of companies and projects

We provide expert assistance to the following clients:

  • Solicitors and Barristers
  • Insurance Companies
  • Accountants and Auditors
  • Client Bodies
  • Contractors
  • Bankers and Financiers