The Growth Plan Has a Leak — and Nobody Has Called the Plumber

Ask a Westminster think-tanker about growth and you will get a diagram. Ask a householder in Leeds why the boiler replacement has slipped to next spring and you will get a shrug, a quote and a waiting list. The second conversation tells you more about Britain in 2026 than the first.

For years, the growth debate has been conducted in the language of abstractions: investment allowances, planning reform, industrial strategy, fiscal headroom. These things matter. But they are the grammar of growth, not the sentence. The sentence is whether someone can actually turn up, certify the work, fit the part and send an invoice. On that test, the country is failing in ways that no Treasury spreadsheet captures.

The economy you can actually book

Growth is not an abstraction for the family whose bathroom has been half-finished since August because the tiler cannot find a second tiler. It is not an abstraction for the parent who has phoned eleven childminders and found one place, or the patient who has been told the NHS dentist is taking new patients in a town three buses away. These are supply-side problems in the most literal sense. The demand is there. The capacity is not.

The Office for Budget Responsibility can model the effect of a tax change on business investment. It cannot wire a consumer unit. The Department for Business and Trade can publish a strategy for advanced manufacturing. It cannot train a heating engineer in Shropshire. And yet the gap between what the economy needs and what it can deliver is now so wide that it has become a drag on everything else.

You can see it in the prices. Try getting a quote for a small electrical job and see how quickly the number rises when the tradesperson realises the job is not small. Try booking a dental appointment and listen for the pause. Try finding a plasterer who will return your call before Christmas. These are not anecdotes. They are the texture of an economy running below its potential because it has run out of people who can do the work.

A training system with a waiting list of its own

Part of the answer is obvious, which is why it is so frustrating that it remains unresolved. Britain needs more tradespeople, more technicians, more carers, more dental hygienists, more childcare staff. It needs them in every region, not just in the cities where the jobs are most visible. And it needs them soon.

But the training system has its own capacity problem. Colleges have spent years cutting courses because the numbers did not add up. Apprenticeship starts have been skewed towards older workers and existing employees rather than young people entering the trade. The levy is a fine idea in theory and a bureaucratic obstacle course in practice for small firms that cannot afford to carry an apprentice through the admin.

We have also spent decades treating vocational education as the plan B. That was a mistake, and it is now an expensive one. A country that can produce a thousand graduates in media studies but cannot produce enough electricians to install heat pumps has not solved the productivity puzzle. It has simply moved the bottleneck somewhere less fashionable.

Planning reform is not just about towers

The same blindness affects the planning debate. Westminster talks about housing targets and tall buildings, which are real issues. But the everyday economy also needs workshops, industrial units, dental surgeries, childcare premises and training centres. A nation that cannot build a dental surgery because the site is awkward and the local plan is silent on health uses is not a nation with a growth strategy. It is a nation with a housing policy and a blind spot.

Small firms trying to expand face the same wall. A garage that wants to add a bay, a bakery that wants a second oven, a plumbing firm that wants to store more parts — these are the unglamorous building blocks of higher output. They do not produce ribbon-cuttings. They do produce jobs, tax revenue and the kind of local resilience that no central strategy can manufacture.

The migration argument is a supply argument in disguise

It is impossible to talk about practical capacity without talking about who does the work. Some of the shortages are so acute that no domestic training pipeline can fill them quickly enough. That is not a reason to abandon training. It is a reason to be honest about the transition.

A grown-up government does both: it trains more people here, and it makes it easier for sectors with genuine shortages to recruit from abroad while that pipeline is built. The alternative — pretending that a six-month visa rule or a shortage occupation list can substitute for a decade of underinvestment in skills — is not a policy. It is a delaying tactic.

This is not a free-for-all argument. It is a capacity argument. If the economy cannot staff its hospitals, build its homes or repair its boilers, it will not grow at the rate the Treasury forecasts. It will simply become more expensive to live in, and less productive than it should be.

What a plumber-shaped growth agenda looks like

A serious supply-side agenda would start with a simple question: where are the bottlenecks, and what would it take to clear them? That means counting the gap in trades, health and care, and childcare. It means funding colleges to run the courses that employers actually need, not the courses that look good in a prospectus. It means making it easier for small firms to take on apprentices without drowning in paperwork.

It also means treating infrastructure as more than rail lines and gigafactories. Broadband, yes. But also the local depot, the training workshop, the dental surgery and the childcare place. These are the fixed capital of everyday life, and they are woefully underprovided.

And it means accepting that some of this will take years. There is no announcement that can conjure an electrician. There is no fiscal event that can shorten a dental waiting list by next quarter. The unglamorous truth is that growth is often a function of thousands of small, practical decisions — about courses, premises, visas and paperwork — that never make the front page.

The unglamorous fix

Westminster loves a strategy because a strategy can be launched. A plumber cannot be launched. A plumber has to be trained, insured, certified and paid. The same is true of the dentist, the childminder and the heating engineer. Britain’s growth problem is not only that the Treasury is too cautious or the planning system too slow. It is that the country has forgotten how to build practical capacity at the scale and speed the everyday economy requires.

The next growth plan should have fewer diagrams and more waiting lists. It should ask why the boiler cannot be fixed, why the dentist cannot be seen and why the childcare place cannot be found. The answers will be unglamorous, local and specific. They will also be the closest thing to a real growth strategy that Britain has had in years.