Latest News:

Quantum Expert, Javier Sánchez Llopes, wins Client Choice Award Celebrating our first year in New York Get to know the new Regional Head of Diales in Oceania We are hiring in New York Diales Discusses – Virtual Hearings Diales staff are re-elected to the SCL Council Martin W. J. Smith, Diales Technical Expert, features in Big Project ME Diales launch new Middle East service: Arabic Litigation Support Diales welcomes Adrian Kong in Singapore Mark Wheeler, Head of Diales, to speak at the UK Adjudicators Conference Webinar: The role of Expert Witnesses in construction and engineering disputes Diales Technical collaborate with artist Gerry Judah, to create Drift. Diales open a new office in Madrid Diales announce collaboration with EVRA Consulting (PTY) Ltd (EVRA) Diales welcomes David Merritt to it’s team of experts Diales feature on Leaders League Diales open a new office in New York Diales Technical shortlisted in the British Construction Industry Awards 2020 Head of Diales, Mark Wheeler, is published in Lawyer Monthly. Chris Sunderland joins Diales as our Marketing and Business Development Director Diales Technical feature in photo contest Diales reception, 5th March 2020 COVID-19 UPDATE Diales Sponsor 8th ICC MENA Conference on International Arbitration Construction Claims Dubai – Record Keeping Evaluating Contract Claims, 3rd Edition – Out Now Diales are excited to sponsor the 17th ICC Miami Conference on International Arbitration Diales Sponsor the 7th Biennial Conference on Construction Projects from Conception to Completion How To Avoid Construction Disputes – Maria Fisentzou Diales nominated in Structural Awards 2019 Diales are delighted to announce that Phil Duggan been appointed as Head of Diales for the Middle East Diales are proud sponsors of Asia ADR Week 2019 Diales are pleased to be sponsoring the 5th ICC Asia Conference in Singapore Diales are pleased to be sponsoring the 4th ICC Africa Conference in Lagos this week Diales is proud to be sponsoring the 3rd PAW and to host a conference Diales is delighted to be taking part in the 3rd Kuwait Project Management Conference 2019. Diales is proud to be sponsoring the 7th ICC MENA Conference on International Arbitration Dealing with conflicting pressures – A practical guide Diales Technical are shortlisted for an award. Diales are proud sponsors of the CIArb’s International Arbitration Conference 2018 Flying high! Another Goodwood sculpture success Diales Host Drinks Reception GAR Live Construction Disputes ICC Institute Advanced Training on “Drafting enforceable awards” Should arbitration in investment protections treaties be forsaken? DRBF Conference – Paris, France Diales work with Gerry Judah on a new sculpture – Jacob’s Ladder Diales experts gain professional recognition Diales have two new experts Diales host successful drinks reception Diales are commended at the 2017 Structural Awards Mark Castell is attending the 2017 Dutch Arbitration Day, Amsterdam Independence Day: Why Do Many Experts Fail at Being ‘Independent’? John Mullen is published in the Construction Law Review Diales technical are shortlisted for two awards Diales celebrates five years of dedicated Expert Witness support services ICC 1st European International Arbitration Conference Diales are the lead sponsor of Kuala Lumpur International Arbitration Week

Expert Profile

Vincent Fogarty

Vincent Fogarty

Quantum and Technical Expert


MSc Construction Law and Dispute Resolution
BSc (Hons) Cost Management of Building Engineering Services
Diploma in Engineering
City and Guilds Certificate in Computer Aided Engineering
Certified PRINCE 2 Project Manager

Memberships & Associations


Contract Experience



Process & Industrial

Regional Experience

Asia Pacific
Middle East

Cross-Examination Experience



  • Quantity Surveyor and Engineer
  • MEP specialist
  • 35 years’ professional industry experience
  • A specialist in mechanical and electrical quantum matters
  • Appointed as an expert on quantum in litigation, adjudication and domestic arbitration
  • Extensive experience of buildings, power infrastructure, IT and data centres


Vincent has 35 years’ quantity surveying and engineering experience within the construction industry. A specialist in mechanical and electrical quantum matters, combining the skills of an engineer with that of a quantity surveyor,

He is a Fellow of the RICS since 2014 and maintains a membership of the Institute of Engineers as an Incorporated Engineer.

Vincent has deep domain knowledge and experience spanning a multitude of sectors including Commercial, Data Centres, Life Sciences, Healthcare, High-Tech Industrial, Hospitality, Education, Residential, Retail, Transportation and Infrastructure, Energy and Power.

Detailed knowledge of SCADA & BMS, Mechanical and Electrical Systems, Biomass and Gas Plants, IT Infrastructure – HV/MV/LV Electrical System, IT Networks, HVAC, Pharma Process systems, CCTV and access control, CHP Plant, subsea and low latency fibre networks. Most recently giving dispute advice on technical matters in relation to a site selection for a hyperscale data centre developer.

His quantum claims experience includes those relating to professional negligence claims for damages, additional payment for variations, re-measurement, disruption, prolongation, site selection and increased costs. Expertise includes issues such as changes in productivity norms, valuation of disruption, formation of GMP target cost models, preliminaries thickening, head office overheads, site overheads, and most recently on operational costs (OPEX) disputes.

Has been cross-examined by counsel in domestic arbitration. He has been tested on expert opinion in Chambers pre-trial on numerous occasions with the matter to later settle before trial.

This expert has the following cross-examination experience:

  • Domestic Arbitration

This expert has recently been instructed by:

  • Beale & Company
  • Geldard’s LLP
  • K & L Gates
  • Osborne Clarke
  • Silver Shimmering Ash
  • Spencer West


I found Vincent to be a thoroughly prepared, measured and  comprehensive analystSenior Counsel


“Vincent completely turned the EMEA leadership  opinions around about our business” Vice President, Vertiv