Closing the Skills Gap: Why Construction Must Invest in the Next Generation

Every conversation about UK construction right now eventually arrives at the same question. Housing targets, infrastructure investment, decarbonisation projects, refinery turnarounds — the pipeline of work is not the constraint. The constraint is who is going to deliver it. That is no longer a forecasting exercise. It is a live operational risk sitting on delivery programmes today.

The Construction Industry Training Board's most recent Workforce Outlook puts a number on it: the UK sector needs an average of 41,200 additional workers every year between 2026 and 2030, roughly 206,000 people across the period, just to keep pace with expected demand. That is before accounting for the experienced workers retiring out of the industry, or the specialist trades where competency takes years, not weeks, to build.

A Pipeline Problem, Not Just a Numbers Problem

The instinct is to treat this as a recruitment problem — advertise harder, pay more, widen the net. CITB's data suggests the issue sits further upstream. Around 33,000 people started construction apprenticeships in Britain in 2023/24, against an estimated need of over 48,000 new entrants a year under business-as-usual demand. Apprenticeship starts would need to nearly triple to close that gap once retention is factored in.

The bottleneck is not attraction so much as conversion. Only 21% of construction businesses currently employ an apprentice, and just 31% of employers offered any form of work placement in the previous 12 months. A learner who completes a course but never moves into sustained site employment does not solve anything — they become part of the churn statistic, not part of the workforce. For specialist trades in particular — insulation, scaffolding, mechanical and electrical, heat tracing — that churn is expensive twice over: once in lost training investment, and again in the senior people who end up compressed into supervising work they should be delivering strategy for.

Why This Bites Hardest in Specialist Trades

Generalist labour shortages are visible and well reported. Less visible, but arguably more serious for programme delivery, is the erosion happening in specialist and regulated trades — the people who hold the competency cards, the confined space certifications, the site security clearances, the coded welding tickets. These are not skills that can be plugged with agency labour at short notice. They take structured years to build, and the workforce currently holding them is ageing out faster than it is being replaced.

For sectors like nuclear, defence, and pharmaceutical manufacturing, where personnel need clearance and vetting on top of trade competency, the lead time on a fully deployable specialist can run well beyond a year. That is a planning problem as much as a training one — it means the investment has to happen well ahead of the tender, not in response to it.

Three Things Have to Happen Together

There is no single lever that closes a gap this size. What we see working — both in the industry data and in our own experience building out delivery teams — is a combination of three approaches, running at the same time rather than in sequence.

Apprenticeships and early careers, treated as a pipeline rather than a compliance box. Bringing in apprentices only works if there is a structured route through to sustained employment and further qualification — not a placement that ends when the funding does. That means pairing new entrants with experienced tradespeople from day one, and treating the first eighteen months as an investment period rather than an immediate productivity expectation.

An employee-integration model, not a purely transactional labour supply chain. Specialist capability is not something a business can simply keep in a warehouse and deploy on demand. It has to be built by bringing engineers and tradespeople on as full employees — people who are invested in over multiple projects, not sourced fresh for each one. This is the model we have built our own delivery approach around: capability grows because people are retained, developed and given a career route, not because a framework happens to have the right subcontractor on file this quarter.

Ongoing upskilling investment for the existing workforce, not just new entrants. The skills gap is not only a recruitment gap — it is a currency gap. Standards, safety expectations and technical requirements move faster than most training cycles. Tradespeople who qualified a decade ago are working against a materially different competency landscape today. Structured refresher and progression training keeps the existing workforce current, and it is considerably cheaper than replacing experience that walks out the door.

None of these three, on their own, moves the national numbers meaningfully. Together, they build a workforce model that can actually absorb the growth the industry is forecasting for 2027 onward, rather than being capacity-constrained the moment demand returns.

Staying Ahead of a Standards Landscape That Keeps Moving

Workforce competency is increasingly a regulatory matter, not just a training preference. The Building Safety Act 2022 introduced formal competence requirements for those working on higher-risk buildings, reflected in the PAS 8671, 8672 and 8673 competency frameworks for individuals, principal contractors and principal designers. CITB continues to publish its Workforce Outlook and Industry Picture reports annually, shaping how the Apprenticeship Levy and Construction Skills Fund are targeted. The Engineering Construction Industry Training Board (ECITB) runs parallel competency and levy frameworks for the process and energy sectors most relevant to plant, petrochemical and nuclear work.

These frameworks are revised more frequently than most businesses track. We treat monitoring them as a standing responsibility, not a one-off compliance check — because a workforce plan built against last year's competency requirements is already out of date.

Where BESAT Fits

We are not immune to the pressures described above — no delivery business is. But the model we have built is a direct response to them. Rather than assembling teams purely through subcontract relationships, we bring specialist engineers and tradespeople on as full BESAT employees across our Consultancy, Engineering, and Industrial & Commercial Services divisions, investing in their development over the course of a career rather than a single contract. It is a slower way to build capability than simply expanding a supply chain — and, we believe, a considerably more resilient one when the industry is competing this hard for the same shrinking pool of skilled people.

The workforce crunch facing UK construction is not going to resolve itself over the next reporting cycle. The businesses that come through it with delivery capability intact will be the ones that started investing in people before the demand forced their hand.