Construction faces a specific version of New Zealand’s skills problem: apprentice numbers more than 30 percent below their 2022 peak, an ageing workforce with retirements outpacing replacement, and an infrastructure programme that requires sustained workforce capacity over the coming decade.
For a construction business, that means capacity planning has to assume skilled labour is scarce rather than available.
The capacity decision is the growth decision
The step that determines whether a construction business can take larger work is whether it can staff it. A contractor who wins a project they cannot crew has a worse problem than one who declined it.
Practical discipline before bidding larger work:
- Confirm crew availability for the actual programme dates, not in principle.
- Assess subcontractor capacity the same way, and understand that in a tight market your subcontractors have options.
- Model the cost of scarcity — if you have to pay above market to crew the job, that belongs in the price.
- Consider whether the work displaces more profitable existing work.
Pricing has to carry the training cost
An apprentice is not commercially productive for a meaningful period and consumes supervisor time that would otherwise be chargeable.
If your charge-out rates assume full productivity from everyone on site, taking on an apprentice makes every job less profitable and you will conclude training does not work. Build the non-chargeable supervision time into the rate.
Work out your real overhead rate as well — total annual overhead divided by total direct cost of work. Most small construction businesses find it is 20 to 35 percent once vehicles, insurance, unbilled time and administration are counted properly. That recovery goes on every job before any margin.
Licensing constrains who can do what
Restricted building work must be carried out or supervised by a Licensed Building Practitioner licensed in the relevant class. Working outside your class is a disciplinary matter regardless of competence.
That means your capacity is not headcount — it is licensed capacity. A business with plenty of hands and one LBP can only run as many concurrent sites as that person can genuinely supervise, and nominal supervision across several sites is the pattern behind a number of Building Practitioners Board findings.
Growing licensed capacity takes years, which is another argument for supporting existing staff through licensing rather than waiting until you need it.
Retention costs less than recruitment
Replacing a skilled tradesperson costs recruitment, months of reduced output, and frequently a client relationship. What keeps people:
- Consistency between what was promised at hire and what happens.
- Decent equipment and a reasonably run site. Chaos is exhausting and people leave it.
- Progression that exists — supporting licensing, ticket courses, moving toward supervision.
- Realistic programmes. Sustained pressure to complete work that cannot be done safely in the time available drives good people out.
- Managers trained to manage, rather than promoted for being good on the tools.
Subcontractor relationships are capacity
In a tight market, subcontractors choose their clients. The contractors who get crews are the ones who pay on time, issue clear scopes, run organised sites and do not treat variations as a fight.
That is a commercial advantage built over years and lost quickly. Paying subcontractors late to manage your own cashflow is borrowing capacity you will need later.
Note also that retention money withheld under a commercial construction contract must be held on trust in a separate account, and subcontractors are entitled to information about where theirs is held.
Health and safety weighs heaviest on new people
Inexperienced workers are over-represented in injury statistics because they cannot yet recognise hazards and are least likely to refuse an unsafe instruction.
Falls and vehicles are where the sector’s serious harm concentrates. For working at height the duty is to eliminate the risk where reasonably practicable — prefabricating at ground level, edge protection, scaffolding — before reaching for harnesses, which do not prevent a fall.
The demand side
Infrastructure investment requirements are projected to sustain workforce pressure, particularly in civil infrastructure and specialist trades. For a business positioned in those areas, the constraint over the next several years is likely to be capacity rather than work.
That is an argument for building capability now, while you can train people, rather than trying to recruit qualified people later alongside everyone else.
Education Counts publishes training data under an open licence, MBIE publishes Building and Construction Trends reporting and LBP requirements, and WorkSafe publishes construction guidance.
Figures: Education Counts workplace-based learner data, 2025. General information only.
