Expert profile

Duncan Grimshaw

Principal

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Highlights

Fellow of the Royal Institution of Chartered Surveyors.
Proven as a credible expert witness under cross-examination.
Delivered both written and oral evidence in litigation and ADR.
Appointed as the named quantum expert on more than 30 occasions.
Has been the named expert on claims of £100 million.
Assisted the named expert on disputes in excess of £1 billion.

Services

Construction Quantum | Commercial Litigation

Industries

Duncan Grimshaw is a highly respected quantum expert and chartered quantity surveyor with 40+ years’ experience and a proven track record in major construction disputes worldwide.
Lexology Index - Consulting - Construction - Quantum, Delay and Technical

Expertise

Duncan Grimshaw is a Chartered Quantity Surveyor with over 40 years of construction industry experience. He has been appointed as a quantum expert and expert advisor 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 specialised in dispute resolution for over 15 years. 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.

Professional recognition

Lexology Index

Construction

Duncan’s willingness to give an opinion on issues without sitting on the fence is greatly appreciated. He endeavours to provide quick turnaround and clearly drafted reports.
Lexology Index - Construction

Background

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 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 and NEC4.