Quantum & TEST

We provide expert witness services in relation to quantum and disruption to support legal, commercial, and contractual decision making as well as dispute resolution proceedings. 

Our Quantum and Disruption team provide independent, tribunal-ready expert services for the construction, energy and infrastructure sectors. We specialise in the forensic analysis, valuation and presentation of expert submissions arising from complex, high-value projects across among others oil & gas, offshore, onshore and floating wind farms, solar farms, transport, utilities, energy, process, residential commercial development, data centres and public infrastructure.

We establish the clear financial consequences of delay, disruption, acceleration, change, prolonged performance and termination and are regularly appointed to analyse and quantify claims and counterclaims, test competing expert opinions and deliver clear, objective evidence on quantum and financial causation.

Our experts act across all major dispute resolution forums, including litigation, arbitration, adjudication, dispute adjudication boards (DAB), mediation and expert determination.

Typical instructions include:

We combine deep sector knowledge in construction, energy and infrastructure delivery with quantity surveying, commercial management, cost engineering, construction management, programme integration and contract interpretation to ensure that our opinions are technically sound, contractually grounded and commercially credible.

Above all, we are known for our independence, clarity and resilience under cross-examination, delivering expert evidence that assists tribunals in reaching fair, reasoned and well-supported decisions on quantum. We focus on practical and pragmatic solutions and opinions, and consciously avoid theoretical possibilities.

We apply rigorous, recognised methodologies selected to suit the nature of each dispute, the quality of records available and the applicable legal and contractual framework. Our approach is evidence-led, transparent and fully explainable before a tribunal, legal team and clients.

Typical methodologies include:

All opinions are supported by contemporaneous project records, cost data, programmes, site reports and commercial documentation. We clearly separate entitlement, causation and quantum to ensure analytical integrity and legal robustness.