Expert Witness Services
Independent expert witness services from a Chartered Quantity Surveyor. Expert reports, oral testimony and quantum analysis for courts, tribunals and international arbitrations across construction, infrastructure and engineering disputes.
Quantity Surveying Expert Witness
Expert Services International provides independent expert witness services from a Chartered Quantity Surveyor with over twenty-five years of experience in construction and infrastructure disputes. Our practice is built upon the rigorous application of quantity surveying principles to the preparation of expert evidence — ensuring that opinions on cost, valuation and quantum are grounded in recognised professional methodology and withstand scrutiny under cross-examination.
Our principal, Neil Kirkpatrick, is a Fellow of the Royal Institution of Chartered Surveyors (FRICS) and a Chartered Quantity Surveyor with extensive experience in providing expert evidence across courts, tribunals and international arbitrations. His qualifications in quantity surveying and construction management, combined with a Master of Laws in International Commercial Law and Fellowships of the Chartered Institute of Arbitrators and the Chartered Institute of Building, provide a multidisciplinary foundation that bridges the technical and legal dimensions of construction disputes.
We accept instructions from solicitors, barristers, parties and tribunals, and are experienced in providing quantity surveying expert witness evidence in proceedings across Australia, Asia and the United Kingdom.
Areas of Expertise
Our expert witness quantity surveyor provides independent opinion evidence across the full range of financial and cost matters arising in construction disputes.
Expert evidence on measurement methodology, quantities, rates and prices. Valuation of work executed under the contract, including assessment of appropriate methods of measurement and the proper application of contractual valuation mechanisms.
Valuation of varied and additional work, including identification of the contractual basis for valuation, the selection of appropriate pricing methodology and the assessment of consequential impacts on programme, preliminaries and overheads.
Independent assessment of final accounts, including re-measurement of provisional quantities, valuation of daywork, assessment of prime cost and provisional sums, and reconciliation of interim payments against final entitlement.
Quantification of damages arising from breach of contract, including prolongation costs, disruption losses, loss of profit, financing costs and head office overheads. We apply recognised methodologies and present quantum analysis with the clarity required for tribunal determination. Refer to our dedicated quantum expert witness page for further detail.
Expert opinion on construction cost estimates, cost plans, cost control systems and cost allocation methodologies. Assessment of the reasonableness of tendered rates and prices, and analysis of cost overruns and budget exceedances.
Assessment of the reasonable cost of rectification of defective work, including consideration of the appropriate measure of damages, the cost of alternative remedial schemes and the diminution in value where reinstatement may be disproportionate.
The Role of the Quantity Surveyor
Construction disputes invariably involve complex financial issues that require professional expertise in measurement, valuation, cost analysis and contractual interpretation. A Chartered Quantity Surveyor brings to the role of expert witness a depth of practical experience in the financial management of construction projects — from tender stage through to final account — combined with the professional rigour and ethical obligations imposed by membership of the Royal Institution of Chartered Surveyors.
The quantity surveyor's training in measurement methodology, pricing conventions, contractual valuation mechanisms and cost control systems provides a sound analytical foundation for the preparation of expert evidence on financial matters. When combined with experience in the procedural requirements governing expert evidence, this expertise enables the preparation of reports that are technically robust, methodologically transparent and presented with the clarity necessary to assist the tribunal.
Our expert witness quantity surveyor is experienced in concurrent expert evidence, joint expert conferences and the preparation of joint reports, and approaches these processes constructively while maintaining the independence of opinion that the role demands.
Experience
Our quantity surveying expert witness experience spans building, civil engineering, infrastructure and resources projects across the public and private sectors. We have provided expert evidence in disputes arising from projects of varying scale and complexity.
Commercial, residential, mixed-use, retail, hospitality, healthcare, education and institutional projects — including high-rise development, refurbishment and fit-out works.
Roads, rail, bridges, tunnels, ports, airports, water treatment, wastewater and utility infrastructure across both greenfield and brownfield environments.
Mining, oil and gas, LNG, power generation, renewable energy, petrochemical, industrial processing and heavy industrial projects.
International Experience
We provide quantity surveying expert witness services across multiple jurisdictions internationally. Our expert reports are prepared in compliance with the expert witness protocols and codes of conduct applicable in each forum, and we are experienced in the distinct evidentiary and procedural expectations of courts, statutory adjudications and international arbitrations.
Our quantity surveying expert witness is experienced in proceedings conducted under the rules of the major international arbitral institutions and is familiar with the requirements of domestic and international tribunals. For further detail, refer to our expert witness jurisdiction pages.
Your Expert
Neil Kirkpatrick BSc (Hons), LL.M, DipICArb, FCIArb, FRI, FRICS, FCIOB is a Chartered Quantity Surveyor, Chartered Construction Manager, Arbitrator, Adjudicator and Expert Witness. He holds a Fellowship of the Royal Institution of Chartered Surveyors in both the Quantity Surveying and Dispute Resolution faculties, together with qualifications in construction, quantity surveying and management, and a Master of Laws in International Commercial Law. He has provided expert witness evidence in court proceedings and international arbitrations across multiple jurisdictions, and chairs a number of dispute resolution and expert witness committees.
Credentials
Our principal expert witness quantity surveyor holds the following professional qualifications and memberships relevant to the provision of quantity surveying expert evidence: Fellow of the Royal Institution of Chartered Surveyors (FRICS) — Chartered Quantity Surveyor, with membership of both the Quantity Surveying and Dispute Resolution faculties; Fellow of the Chartered Institute of Arbitrators (FCIArb) with Diploma in International Commercial Arbitration; Fellow of the Chartered Institute of Building (FCIOB); Fellow of the Resolution Institute (FRI); accredited expert witness; Bachelor of Science (Honours) in Construction and Quantity Surveying; and Master of Laws in International Commercial Law.
For a full profile, refer to Neil Kirkpatrick — Principal Expert.
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