Quick Answer
The UK construction sector needs roughly 47,860 extra workers every year between now and 2029, and 91 percent of the occupations that would install heat pumps are already on the Skilled Worker shortage list. Waiting for the pipeline to fix itself is not a plan. Build resilience by widening who you hire, taking funded training routes seriously (the Growth and Skills Levy lands in April 2026), and treating retention as a system, not a perk. The firms that get this right will own the next decade. The ones that do not will spend it firefighting.
Table of Contents
- The numbers behind the crisis
- What workforce resilience actually means
- Widen the pool: hire who you have not been hiring
- Use the funded training routes properly
- The Growth and Skills Levy: what changes in April 2026
- Multi-skill your existing engineers
- Treat retention as a system, not a perk
- Build a five-year workforce plan
- What the industry is saying
- Recommended videos
- Frequently asked questions
- My verdict
The numbers behind the crisis
The headline figure most people quote is 225,000 new workers by 2027. The Construction Industry Training Board's latest Workforce Outlook is calmer than that: 47,860 new workers a year, every year, between now and 2029. That is 239,300 people in five years. Either way, it is a lot, and the industry is not on track.
The CITB also reports that fewer than 50 percent of construction apprentices complete their training, and only 24,230 new construction apprentices started in 2023/24. The Federation of Master Builders' Q3 2024 State of Trade survey found 38 percent of small builders had jobs delayed because they could not find skilled labour. Carpenters and bricklayers top the shortage list. Heat pump roles, electricians and plumbers are not far behind.
The heat pump cliff edge
The Aldersgate Group's Heat Pump Workforce report (November 2025) puts ten core installation occupations, accounting for 91 percent of the potential workforce, on the Skilled Worker Visa Temporary Shortage List. The current MCS-certified heat pump engineer count sits around 7,800. The 2028 target is 33,700. That is a tripling in under three years.
The gap is not new. What is new is the speed. The Future Homes Standard lands in 2026. The Warm Homes Plan needs 600,000 heat pump installs a year by 2028. EICRs, EV charge points, retrofit upgrades, rewires for solar, battery storage. Every one of these jobs needs a qualified pair of hands, and right now we do not have enough of them.
Andrew Eldred, Deputy Chief Executive of the Electrical Contractors' Association, put it plainly when their 2026 Electrical Skills Index landed: "In ECA's 125-year history, we have never seen a gap so wide between ambition and workforce reality." That is the operating environment. Plan for it.
What workforce resilience actually means
Resilience is not the same as recruitment. Recruitment is a campaign. Resilience is the property of a business that keeps delivering when the labour market tightens. It comes from four things working together: a broader hiring pool, a faster training pipeline, multi-skilled engineers, and retention that holds onto the people you have already paid to develop.
Most small trade businesses I speak to are doing one of those four things at any one time, usually under pressure. Hiring when a van sits idle. Putting an engineer through MCS when a customer asks for a heat pump. Bumping a wage when someone hands their notice in. That is reactive. It is also expensive: Alison Warner's analysis put the cost of losing one engineer at over £15,000 when you add recruitment, lost productivity and customer disruption.
Resilience is doing the four together, on a schedule, before you need them. It looks boring on paper. It is the difference between a five-van firm that doubles in 2027 and one that turns work away.
The resilience test
If your lead engineer handed in their notice today, how long before the wheels came off the business? If the answer is "a fortnight" you have a workforce problem dressed up as an operational one. The fix is the same either way: cross-trained engineers, documented procedures, a pipeline you can pull from.
Widen the pool: hire who you have not been hiring
The first lever is the simplest and the one most firms ignore. The traditional pool for a UK trade apprentice is a 16 to 19-year-old lad from a family with a tradesperson in it. That pool is shrinking. Fewer than 19 percent of the construction workforce is under 25. The schools careers piece is broken; we covered that in the image problem piece earlier this year.
Widen the pool deliberately:
- Career changers in their late 20s and 30s. Logic4training's 19+ programme exists precisely for this. They show up with money to invest, life experience, and a customer-facing instinct most teenagers do not have. Yes, they need more pay during training. Yes, they finish faster.
- Women. The numbers are still appalling. The CITB's Inspire programme and the Women Into Construction network exist to help small firms recruit. Use them.
- Ex-forces. The Building Heroes scheme places ex-service personnel into trade roles. They arrive with discipline, paperwork habits and a CSCS card halfway through.
- School leavers from outside the trades family network. The Get In Construction and Go Construct school engagement programmes target schools where no one in the year group has a trade parent. Most of these kids have never been told the trade pay scale.
None of this is virtue signalling. It is supply economics. If you are fishing in the same shrinking pond as every other firm in your area, you will lose. The firms hiring 31-year-old former retail managers and 19-year-old college leavers from non-trade backgrounds are the ones filling their vans.
The £2,000 incentive most small firms miss
Hire a young apprentice under the Universal Credit Youth Jobs incentive and you get up to £2,000 in employer payments. Stack that with the £1,500 CITB SME grant for apprentices and the £14,000 in CITB attendance grants over the term of the apprenticeship and the maths changes. We mapped every funding route in the skills bootcamps and CITB grants guide.
Use the funded training routes properly
The funding landscape for trades training in 2026 is the most generous it has been in a decade, and most small trade owners I speak to are using maybe a third of what is on the table. Two reasons: it is fragmented across CITB, Skills Bootcamps, MCS-linked grants, the Boiler Upgrade Scheme installer training pots, and the levy itself. And the paperwork is a hassle.
Here is the simple map.
| Route | Who pays | What you get | Best for |
|---|---|---|---|
| Apprenticeship Levy / Growth and Skills Levy (Apr 2026) | 95-100% funded for SMEs | Level 3 Plumbing & Domestic Heating Technician, including heat pump modules; Level 3 Installation and Maintenance Electrician | Starting a 16-24-year-old from scratch on a 3-4 year programme |
| Skills Bootcamps | DfE funded | 12-16 week intensive courses in heat pumps, EV charging, solar PV, retrofit | Upskilling an existing engineer fast, or fast-tracking a career changer |
| CITB attendance + completion grants | CITB levy pool | Up to roughly £14,000 per apprentice over their term | Stacking with the levy to offset wage cost during training |
| Heat Training Grant | BEIS / DESNZ + manufacturers | Up to £500 per learner toward MCS heat pump training | Putting a qualified heating engineer through MCS |
| UC Youth Jobs apprentice incentive | DWP | Up to £2,000 employer payment | Hiring an under-25 from the Universal Credit register |
Stack them properly and the cost of putting an apprentice through a three-year programme drops to a fraction of the headline wage bill. We mapped a full worked example in the ROI of staff training piece: a four-van firm spent £4,200 on training and added £38,000 of margin in twelve months.
Two things to do this quarter. First, register with CITB if you have not. The annual return takes an afternoon and unlocks the attendance grants. Second, ring your local Skills Bootcamps provider and ask what they have running for heat pumps, solar PV or EV charging in the next six months. Pick one engineer per quarter and put them through.
The Growth and Skills Levy: what changes in April 2026
From 6 April 2026 the Apprenticeship Levy becomes the Growth and Skills Levy. Same 0.5 percent of payroll over £3 million, same structure for the big builders. What changes for everyone else is more important.
- From August 2026, all apprentices under 25 at non-levy paying businesses are fully funded. The 5 percent co-investment goes. This matters: most SME trade owners I know baulk at the 5 percent on top of the wage. Now it is gone.
- Apprenticeship units replace full standards. Levy funds can pay for short, focused units of an apprenticeship standard. You can put an engineer through the heat pump unit without committing to the full plumbing apprenticeship. This is closer to the Mark Krull point: stop forcing engineers to choose traditional or low carbon. Train them in both.
- Foundation apprenticeships expand. The £40 million foundation apprenticeship pot announced in 2025 covers construction. It is a six-month bridge for school leavers who are not ready for a full three-year programme. Useful for the late-developer who would otherwise drop out.
What this is worth, per apprentice
Take a 23-year-old career changer starting a Level 3 Plumbing and Heating apprenticeship in April 2026 at a non-levy SME. The Growth and Skills Levy covers 100 percent of the training cost (£15,000-£20,000 per apprentice). CITB attendance grants stack on top: up to £8,000 over the term. The SME hires a productive engineer for the cost of a wage and a van. The same hire under the old levy cost an additional £750 to £1,000 in co-investment per year.
One caution. The Growth and Skills Levy detail is still being finalised by DfE and Skills England. The skeleton is set but the precise unit list is not. If you are planning a 2026 apprentice intake, talk to a training provider in February, not April.
Multi-skill your existing engineers
This is the lever that pays back fastest. Most trade businesses run with engineers who specialise narrowly: a gas engineer, an electrician, a plumber. Single point of failure. Single revenue stream per engineer.
Multi-skilling is the discipline of adding a second and third qualification to engineers already on the payroll. The Logic4training position on this is right: stop polarising into traditional or low carbon. A heating engineer who can install a combi today, a heat pump next week and a solar diverter the week after is worth more to the customer, more to you, and infinitely more resilient when one demand stream dips.
| Starting trade | Add | Time | Day rate uplift |
|---|---|---|---|
| Gas engineer (ACS) | MCS heat pump (BPEC + Energy Efficiency) | 2-4 weeks | £75-£125 a day |
| Electrician (Level 3) | EV charging (City & Guilds 2921) | 3-5 days | £40-£80 a day |
| Electrician (Level 3) | Solar PV (City & Guilds 2399) | 3-5 days | £50-£100 a day |
| Heating engineer | Retrofit Assessor (PAS 2035) | 4-6 weeks | £100-£150 a day on retrofit jobs |
We covered the per-certification numbers in detail in the green skills certifications piece and went deep on heat pump specifically in the heat pump training and certification guide.
The objection most owners raise is straightforward: "if I train them up they will leave." It is the wrong question. The right one is what happens if you do not train them and they stay. You end up with a £40,000 engineer doing £20,000 work. The retention answer is in the next section.
Treat retention as a system, not a perk
The cost of losing one engineer is over £15,000 on Alison's numbers. Most trade owners will pay that bill twice or three times a year and treat it as the cost of doing business. It is not. It is a retention failure that is fixable.
Retention is not free coffee and a Christmas party. It is a system with four parts.
- A clear progression path. Every engineer should know what they have to do to earn the next £5,000. Write it down. Tie it to certifications: gain MCS heat pump and the day rate goes up by £40. Pass Level 3 electrical and the pay scale moves. Vague "we will look after you" promises are not progression paths.
- Decent kit and decent vans. The cheapest retention lever I know. An engineer with a knackered van and a broken pipe wrench thinks about leaving every Monday morning. The £200 a year you save not maintaining tools costs you a £15,000 leaver.
- Real feedback, monthly. Twenty minutes, one-to-one, no agenda except "what is making your week hard." Most owners do not do this. It is the single highest-ROI thing on this list.
- Pay reviews on a schedule, not on a threat. If your engineer has to hand in notice to get a pay rise you have already lost. Review pay in January and July, every year, against day rate benchmarks. We pulled together the benchmark figures by trade and region in the trades benchmarking piece.
The Gen Z piece is non-negotiable now
Under-25s in trades are rising three times faster than any other age group, and they expect different things from employers. Flexible hours where possible, mental health support, transparent pay, real progression. The firms ignoring this end up with veteran engineers and no pipeline. The full picture is in the Gen Z in the trades piece.
One more thing. Onboarding a new engineer badly will cost you that engineer inside six months. The first 30 days set whether they stay for five years or five months. We documented a tested 5-day onboarding playbook with digital checklists in the onboarding piece. Use it.
Build a five-year workforce plan
This is the part nearly no small trade business does. A five-year workforce plan is one sheet of paper. It does not need a consultant.
Three columns. Year. People. Skills.
| Year | People on the books | Skills mix |
|---|---|---|
| 2026 (today) | 4 engineers, 1 apprentice | 3 gas, 1 electrical, 0 MCS heat pump |
| 2027 | 5 engineers, 2 apprentices | 3 gas + 1 MCS, 1 electrical + EV charging, 1 new heating apprentice |
| 2028 | 6 engineers, 2 apprentices | 3 gas + 2 MCS, 1 electrical + EV + Solar PV, 2 progressing apprentices |
| 2029 | 7 engineers, 3 apprentices | 2 gas + 3 MCS, 1 electrical full multi-skill, 1 retrofit assessor, 1 newly qualified engineer |
| 2030 | 8 engineers, 3 apprentices | 1 gas + 4 MCS, 2 electrical multi-skill, 1 retrofit lead |
Pin that to the wall. Update it once a quarter. Now every recruitment decision, every training spend, every pay review has a destination. Without it you are reacting; with it you are building.
If you want a stress test: read the warning signs in the construction distress piece. Most of them are workforce signals dressed up as financial ones. Cash flow problems usually start as missed jobs from missing engineers.
Pair the plan with operational systems
A workforce plan only works if the business systems hold up around it. The systems playbook covers the operational scaffolding: documented procedures, FSM software, training records that survive an engineer leaving. The plan is the destination; the systems are the road.
What the industry is saying
Recommended videos
Workforce Shortage: Rethinking Recruitment Strategy
Build Your Path
Apprenticeships: The Solution to Construction Workforce Shortages
Build Your Path
Galliford Try Construction Apprenticeships UK
careermapTV
Hire, Train, Retain: Construction Hiring and Retention Strategies
Construction Genius Podcast
Employee Retention Strategies That Work
ServiceTitan
How to Retain Employees in Small Business
Matterhorn Business Development
Frequently asked questions
Yes, but historically the paperwork has been the killer. Flexi-job apprenticeship agencies handle the admin while you get the engineer on the van. Screwfix has funded 50 placements via this route since 2022. Ask your CITB regional adviser to point you at the local flexi-job provider.
You will lose roughly one in three. That is the industry rate. The answer is not to stop training; it is to make the leavers expensive to themselves. A clear pay scale tied to certifications, a training agreement with a 24-month payback clause, and decent retention practice. The maths still works heavily in favour of training: a leaver costs £15,000, a trained engineer earns you £40,000-£60,000 a year in margin.
£1,200-£2,500 for the BPEC and Energy Efficiency tickets, two to four weeks off the tools. The Heat Training Grant covers up to £500 toward course fees. If you are not paying for it, why are you not paying for it? See the heat pump training piece for the worked example.
The levy structure switches over from 6 April 2026. The full apprenticeship funding changes for under-25s at non-levy SMEs land from August 2026. Apprenticeship units (short focused chunks of standards) become eligible from April 2026 onwards as the unit list is published by Skills England.
The Skilled Worker Visa Temporary Shortage List covers ten heat pump installation occupations and several other trades. Sponsorship is real but it is expensive (sponsor licence around £536-£1,476, immigration skills charge, certificate fees). For most small trade firms the maths only works if you are sponsoring a specific qualified engineer you have already met. It is not a substitute for the domestic pipeline.
Be specific about pay, be specific about progression, lead with what the role gives the engineer (not what you want from them). Most trade job ads are abysmal. We covered AI-assisted job ad writing for apprentices in this piece; the same logic applies for qualified engineers.
Yes, for the donkey work. SOPs, training records, induction packs, holiday rotas, performance review templates, the stuff that eats your Sunday evening. We built a training library system using Claude Cowork in this guide. It replaces the consultant for most small trade businesses.
My verdict
Workforce is the constraint. Plan for it like one.
The next five years in UK trades will be won by the firms that treat workforce as a system, not a series of crises. Widen who you hire. Use the funded routes properly, especially after April 2026 when the Growth and Skills Levy lands. Multi-skill the engineers you already have so they convert better and stay longer. And treat retention as a system with a progression path, decent kit, real feedback and pay reviews on the calendar. Most owners I speak to know all of this. The ones who actually do it will run firms two and three times the size of the ones who do not. Get the one-page workforce plan on the wall this week. Pick one funded training route to use this quarter. Have a 20-minute one-to-one with every engineer before the month is out. That is the resilience plan. Everything else is detail.
