Construction Delay Expert Witness & Dispute Support

Clear, defensible delay expertise for formal disputes — from a practitioner who has planned the projects, not just reviewed the files.

Credible evidence starts with credible experience

Tribunals don’t decide delay disputes on volume of paper — they decide them on whose analysis they believe. Credible delay evidence is independent, methodologically sound, and communicated so that a non-programmer can follow every step. That is the standard VERTX works to, grounded in our director’s 25+ years of building and managing programmes on live UK infrastructure.

Services

Expert advisory (pre-appointment) — Early, privileged assessment of the strengths and weaknesses of your delay position before formal proceedings — often the most valuable money spent in a dispute.

Adjudication support — Rapid-turnaround delay analysis and reports suited to the 28-day adjudication timetable, where most UK construction disputes are actually decided. More on adjudication delay expert support.

Expert reports and support to appointed experts — Independent written opinion on delay, prolongation and programming matters, and rigorous analysis and report support for lead experts on larger matters. Expert reports are prepared in line with the expert’s overriding duty to the court or tribunal (CPR Part 35 where it applies).

Why appoint VERTX

Practitioner credibility — Opinions grounded in how projects are actually planned and delivered on roads, rail and HS2, bridges, nuclear, energy and utilities — which shows under scrutiny.

Contract-literate analysis — Evidence framed around the legal tests the tribunal must apply — causation, concurrency, the prevention principle — not just the mechanics of the software.

Genuine independence — Unlike large consultancies with dozens of live framework relationships, VERTX carries no institutional conflicts. Conflict checks are fast and clean.

Director-led, start to finish — The director performs the analysis and signs the report; a delivery team supports programme production.

Mission-critical and energy work — Delay on data-centre, grid and energy schemes turns on connection dates, long-lead power equipment and commissioning. Our evidence is built from planning those interfaces on energy, grid and M&E-integrated projects. Data-centre dispute support →

Instructing us

We accept instructions from solicitors, contractors, employers and insurers. VERTX does not act as independent expert on a matter where it has prepared or advised on the claim. For solicitors: we’re happy to provide a CV, conflict check and fee estimate within 2 working days of an initial enquiry. Dispute-related enquiries are treated as confidential — for conflict-check purposes, send party names first.


See it in practice

Delay analysis upheld in adjudication — a circa £0.7m decision for the contractor on a £5m NEC3 highway scheme, won on the programme record. Read the case study →

Need delay expertise for a dispute?

Send us the headline facts in confidence — parties, contract form, dispute value and timetable — and we’ll confirm conflicts, availability and fees within 2 working days.

Scroll to Top