Duncan Grimshaw

Duncan Grimshaw is a Chartered Quantity Surveyor with over 35 years of construction industry experience. He has been appointed as a quantum expert on more than 40 occasions.

Duncan has been cross-examined in both the courts and alternative dispute resolution (ADR) proceedings. His expert roles have been in relation to a variety of building, industrial, and infrastructure projects, with disputed values of up to £100 million. Duncan has also assisted the named expert for disputes with claims in excess of £1 billion.

Duncan has worked for national and international contractors and major consultancies as a quantity surveyor, project manager and employer’s agent. His experience includes commercial management and project management using standard and bespoke main works contracts and sub-contracts including JCT, FIDIC, NEC3/4, and IChemE.

Duncan has specialised in dispute resolution for more than a decade. Alongside his expert work, he also undertakes dispute avoidance commissions for live projects, aiming to reduce claims between contractors and employers and from subcontractors to main contractors.

Duncan is a fellow of the Royal Institution of Chartered Surveyors, a practising member of the Academy of Experts, and a member of the Society of Construction Law. He holds an LLM in construction law and legal practice, an Advanced Professional Award in Expert Witness Evidence, is a Bond Solon accredited expert witness, and an ECC accredited Project Manager for NEC3.