Quantum, Valuation, Time & Technical Expert Witness
We give independent expert evidence on quantum, valuation, time and technical issues in construction and engineering disputes, for courts, arbitral tribunals and adjudicators.
How it works
- 01InstructionsA short summary, the parties’ names for a conflict check, and the timetable. We confirm independence and scope, then agree terms before any work starts.
- 02AnalysisExpert reports that comply with the court’s or tribunal’s rules and code of conduct.
- 03Joint reportExpert conferences and joint reports.
- 04EvidenceConcurrent evidence and cross-examination.
The steps are illustrative; the contract, the rules and the tribunal govern each matter.
What we do
- Expert reports that comply with the court’s or tribunal’s rules and code of conduct
- Expert conferences and joint reports
- Concurrent evidence and cross-examination
- Shadow expert support for counsel
Why IDRS
Independent
Our duty is to the tribunal or the process, not to the party paying the fee.
Quantity surveying and law
Chartered quantity surveyor (FRICS) and chartered construction manager (FCIOB), with an LL.M in international commercial law.
Trained in the process
Our principal chairs the Resolution Institute’s Expert Witness National Training and Accreditation Program.
How to engage
Send a short summary, the parties’ names for a conflict check, and the timetable. We confirm independence and scope, then agree terms before any work begins.
Expert Services for Quantum, Construction & Technical Disputes
We provide quantum, construction, technical and delay expert investigation, reports and expert witness services for the construction and infrastructure industries and the natural and built environments. Across the many methods of identifying and analysing quantum and delay, our capability rests on practical experience and robust qualifications, not impractical theory, which avoids the risk of a report failing under examination and being found inaccurate. This can be key to soundly reasoned, factually referenced reports that help courts and tribunals decide quantum and technical issues.
Experienced Experts
Experienced in providing expert reports and expert testimony, we give expert witness services for the construction and engineering industries. Our experts’ overriding duty is to the court or tribunal, and our opinions are independent, well reasoned and grounded in detailed industry knowledge and careful analysis of the facts. The service covers quantum, valuation, delay, disruption, and loss and expense claims, together with technical construction matters such as compliance with specification, defective work, design, project management and contract administration.
Our team combines extensive practical experience with formal qualifications in quantity surveying, construction management, international commercial arbitration and alternative dispute resolution. That multidisciplinary expertise lets us provide expert witness services across the entire scope of construction disputes, with reports that are legally compliant, technically sound and commercially practical.
Project Experience Across All Sectors
We bring experience across building, infrastructure and resource projects.
Expertise in Measurement, Evaluation & Valuation
Expert in methods of measurement, the evaluation of delay, disruption and acceleration, and the valuation of construction work under standard or bespoke forms of contract, we are experienced in the forensic assessment and tracking of, and response to, the large quantities of information that can form the basis of a contractual dispute. Our methods are grounded in industry practice, contractual frameworks and established principles of delay analysis, quantum assessment and cost recovery.
Delay Analysis Expertise
- Critical path method analysis
- As-planned vs as-built comparison
- Time impact analysis
- Window analysis methodologies
- Extension of time assessment
- Schedule acceleration analysis
Quantum Analysis Expertise
- Cost engineering assessment
- Forensic accounting review
- Variation order analysis
- Contractual damages calculation
- Loss and expense evaluation
- Cost allocation methodologies
Adhering to Expert Witness Protocols
When providing expert investigation, reporting and testimony internationally, we understand and follow the applicable professional and tribunal codes of conduct, standards and procedural rules. Our consultants maintain a thorough knowledge of protocols across all major jurisdictions, including international arbitration rules, Australian courts and tribunals, the civil procedure rules of England and Wales, Hong Kong arbitration frameworks and other established legal systems.
International Compliance Framework
We maintain detailed knowledge of the CIArb Protocol in International Arbitration, the IBA Rules on Taking Evidence, and the arbitration rules of major institutional seats including Hong Kong, Singapore, Bangkok, Vienna and other centres. Our consultants are trained in the procedural requirements and professional standards that apply to international expert witness work, so that all reports and testimony comply with the relevant tribunal rules and codes of conduct.
Australian Court & Tribunal Standards
We comply with expert witness codes of conduct across all Australian jurisdictions, including the Federal Court, state supreme courts and specialist tribunals. Our experience includes compliance with NSW Schedule 7, Victoria Form 44A, the Queensland UCP Rules, South Australian practice directions, WA, ACT and NT protocols, and specialist tribunal requirements including NCAT, VCAT, QCAT and others.
England & Wales & UK Jurisdiction
For matters in England and Wales, we comply with Civil Procedure Rules Part 35 and are familiar with the requirements of the Scottish and Northern Ireland courts. Our consultants understand the procedural rules, the expert’s declaration requirements and the principles of duty to the court that apply in UK jurisdictions.
Integrity & Independence
We maintain strict professional independence and impartiality in all expert work. Our reports are prepared in accordance with the applicable codes of conduct and set out our qualifications, experience, scope and limitations clearly. We understand the importance of the expert’s overriding duty to the court or tribunal and make sure all our work reflects it.
Expert Witness Services
Our expert witness services are built on technical expertise, professional integrity and clear communication. In dispute resolution, the quality and credibility of the expert evidence is often decisive. Our reports are carefully prepared to withstand cross-examination, our methodology is transparent, and our conclusions are firmly grounded in industry practice and contractual analysis.
By combining practical construction experience with rigorous analysis and strict adherence to professional protocols, we provide independent, well-reasoned opinion in quantum disputes, delay claims and technical construction matters.