CONSTRUCTION EXPERT WITNESS

Construction Expert Witness Services

Independent expert opinion on disputed quantum, delay, disruption and quantity surveying professional negligence issues for adjudication, arbitration and litigation.

Discuss an Expert Appointment

Initial discussion free of charge.

Expert Appointments

Selected Experts

ICRS provides expert services for adjudication, arbitration and litigation. Appointments are matched to the discipline and issues in dispute.

  • Matthew Greenhalgh, Quantum Expert and Quantity Surveying Expert Witness at ICRS Consult

    Matthew Greenhalgh

    Quantum Expert and Quantity Surveying Expert Witness

    BSc (Hons), LLM, MRICS, MCIArb

    Appointed as a quantum expert in arbitration, litigation and adjudication. Expert witness experience in quantity surveying professional negligence litigation.

    • More than 30 years of construction industry experience
    • Chartered Quantity Surveyor
    • LLM Construction Law and Arbitration
    • Advanced Professional Award in Expert Witness Evidence
    • JCT, NEC, FIDIC and bespoke contract experience
    View Expert Profile
  • Lee Hudson, Delay and Disruption Expert at ICRS Consult

    Lee Hudson

    Delay and Disruption Expert

    MSc, MCIOB, ACIArb

    Appointed as a delay expert in adjudication and litigation, with extensive planning, programming and forensic delay analysis experience.

    • More than 39 years of construction industry experience
    • 26 years specialising in project management, planning and programming
    • MSc Construction Law
    • Member of the Chartered Institute of Building
    • JCT, NEC, FIDIC, ICE and GC Works experience
    View Expert Profile
ICRS Consult

Credentials and Experience

ICRS Consult brings more than 30 years of construction experience across commercial management, contracts, claims, disputes, adjudication and expert appointments.

30+
years' construction
industry experience
MRICS
Chartered Quantity
Surveyor
MCIArb
Chartered Institute
of Arbitrators
JCT, NEC, FIDIC
and bespoke
contracts
  • LLM in Construction Law and Arbitration
  • Expert appointments in arbitration, litigation and adjudication
  • Expert witness in professional negligence proceedings
  • Advanced Professional Award in Expert Witness Evidence
  • UK and Middle East project experience across JCT, NEC and FIDIC contracts
WHEN EXPERT EVIDENCE IS REQUIRED

When to Appoint a Construction Expert

Where disputed quantum, delay, disruption or quantity surveying practice requires independent opinion, the appointment must match the issues and expert discipline.

The expert reviews the instructed issues, relevant records and evidence before forming an independent opinion within the expert’s discipline. That opinion may be presented in an expert report for adjudication, arbitration or litigation.

The expert report may address the instructed issues, evidence, methodology, assumptions, limitations, matters supporting or weakening the opinion, and matters outside the expert’s discipline.

Disputes Requiring Expert Opinion

Disputes We Support

Typical disputes include:

  • Disputed valuations, variations or final account sums
  • Payment, retention, loss and expense or damages claims
  • Delay events, programme impact or critical path issues
  • Disruption, productivity loss or inefficient working
  • Professional negligence allegations involving valuation, certification, notices, payment assessment, final account handling or contract administration
  • Adjudication, arbitration or litigation
Construction Expert Witness Services

Construction Expert Witness Disciplines

Quantum Expert Witness

Independent Opinion on Disputed Quantum

Independent expert opinion on disputed quantum issues involving valuation, variations, payment, final account sums, loss and expense, retention, damages, deductions and related financial matters.

THE EXPERT REPORT MAY ADDRESS

  • The disputed valuation or financial issue
  • The sums claimed, disputed or assessed
  • The valuation, cost or damages methodology
  • The records and substantiation relied upon
  • Variation, change or final account sums
  • Payment, retention or deduction issues
  • Loss and expense or prolongation cost issues
  • Damages, set offs or contra charges
  • Cost causation and calculation issues

Delay Expert Witness

Independent Opinion on Delay and Programme Effects

Independent expert opinion on disputed delay issues involving delay events, causation, programme impact, critical path, periods of delay, concurrency and time related matters.

THE EXPERT REPORT MAY ADDRESS

  • The delay events relied upon
  • The alleged causes of delay
  • The baseline, updated and as built programmes
  • The factual chronology and actual progress
  • Critical path and concurrency issues
  • The delay analysis methodology
  • The period of delay assessed
  • Time related issues for EOT or delay claims
  • The delay records relied upon

Disruption Expert Witness

Independent Opinion on Disruption and Productivity

Independent expert opinion on disputed disruption issues involving productivity loss, inefficient working, access constraints, sequencing, labour or resource impact and disrupted progress.

THE EXPERT REPORT MAY ADDRESS

  • The disruptive events relied upon
  • The alleged effect on productivity
  • Inefficient working or loss of productivity
  • Labour, plant or resource impact
  • Access, sequencing or workface constraints
  • The disruption methodology
  • Site records and productivity evidence
  • The link between events and claimed loss
  • Alternative causes or unaffected work
  • Non compensable factors

Quantity Surveying Professional Negligence

Independent Opinion on Quantity Surveying Practice

Independent expert opinion on quantity surveying, valuation, certification, payment assessment, final account handling and related professional practice issues.

THE EXPERT REPORT MAY ADDRESS

  • Professional role and appointment
  • Scope of services
  • Quantity surveying practice
  • Valuation and assessment
  • Certification
  • Payment administration
  • Final account administration
  • Contract administration
  • Alleged acts or omissions within the expert’s discipline
Selected matters

Case Studies

Open each case to see the issue, our involvement and the commercial impact.

Case study

Quantum Expert Report for a Civil Engineering Subcontractor

Quantum expert report supports mid-six-figure adjudication recovery for civil engineering subcontractor.

Client
Civil engineering subcontractor
Issue
The payment dispute concerned delay-related costs and disruption-related losses.
Case study

Quantum Expert Report for an M&E Subcontractor

Quantum expert report supports high six-figure adjudication recovery for M&E subcontractor.

Client
M&E subcontractor
Issue
The dispute concerned valuation, variations, deductions and payment entitlement.
Case study

Delay and Disruption Expert Report for a Joinery Subcontractor

Delay and disruption expert report supports high six-figure adjudication recovery for joinery subcontractor.

Client
Joinery subcontractor
Issue
The subcontractor experienced delay, disrupted access, inefficient working and productivity loss.
Client Feedback

What Our Clients Say

Very experienced in claims preparation and defence and has provided valuable advice on complex contractual matters. I would recommend the professional and strategic approach to the resolution of construction claims and disputes.

Contracts ManagerInternational Rail Contractor

His technical understanding, level of investigation, and analysis together with the ability to come up with the substance of the case undoubtedly make him the best choice of consultant in the field.

Commercial ManagerM&E subcontractor

Highly experienced in the preparation of construction claims. He produced a very clear and comprehensive EOT claim for us.

Commercial ManagerInternational Main Contractor

A highly experienced claims practitioner who has an in-depth understanding of complex construction claims.

General ManagerMain Contractor

I reviewed an EOT claim prepared by Matt and his team. It was to a high standard which made it easy to follow and evaluate.

Senior Project ManagerDeveloper
EXPERT WITNESS FAQS

Questions Before You Instruct an Expert

Expert duties and procedural requirements depend on the proceedings and applicable rules. Each appointment is scoped accordingly.

Discuss an Expert Appointment

Discuss the disputed issues, required expert discipline, proceedings and available evidence with ICRS.

Prefer to speak to us?

Speak to our UK team directly

03300 569 011

Prefer to book a time?

Choose a convenient time to speak

Book a Time

Prefer to email us?

Send us the details and we will reply

info@icrsconsult.com
Expert Witness Services

Send Us Your Details

Name, email and a few lines about the issue is enough to start. We will come back to you within 24 hours.