Direct Labour vs Main Contractor in Ireland — Cost, Time, Risk, and the Hybrid Route
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Main contractor: 12–18% on top, saves your time. Direct labour: cheaper, costs you 20+ hours/week. Hybrid is most common.
Main contractor: 12–18% on top of build cost, saves your time. Direct labour: cheaper, costs you 20+ hours/week for 9–15 months. Hybrid: most common in Ireland. You sub-contract groundworks, frame, and infrastructure directly; main contractor takes the build from weathertight onward. Direct labour requires you to act as PSCS (Project Supervisor Construction Stage) and to manage the trades yourself. Most first-time self-builders underestimate the time commitment of direct labour. Be honest about your time and experience before choosing. The main contractor premium is real money, but it's also buying your time and reducing your risk.
When this matters most
You're choosing the build route.
When this doesn't apply
You've signed the building contract.
Sources
RIAI, Form of Building Contract 2012. https://www.riai.ie/
Frequently asked questions
What is the main contractor's premium?
12–18% on top of build cost. For a €500k build: €60k–€90k. Saves you 20+ hours/week of project management for 9–15 months.
Is direct labour cheaper than main contractor?
Yes, by 12–18%. But you spend 20+ hours/week project-managing for 9–15 months. Most first-time self-builders underestimate the time commitment.
What is the hybrid build route?
You sub-contract groundworks, frame, and infrastructure directly. Main contractor takes the build from weathertight onward. Most common in Ireland. Combines the cost saving of direct labour with the time saving of a main contractor for the critical phases.
When this matters most
You're choosing the build route.
When this doesn't apply
You've signed the building contract.
Where to go next
Next decision
The next step in your build sequence.
- Appointing a Main Contractor in Ireland — The Contract, the Insurances, and the Programme →
- Choosing a Builder in Ireland — The 10 Questions That Sort the Field →
- Final Inspection in Ireland — BCAR, Certificate of Compliance, and What Gets Signed →
- Self-Build Programme in Ireland — Gantt Chart, Critical Path, and the 9–15 Month Reality →
- Snag List Process in Ireland — The Walk-Through, the 60–180 Items, and the Fix →
- Stage Payments in a Self-Build in Ireland — Milestones, Retention, and the 5% Rule →
Branch into
Adjacent decisions at the same stage.
- BER Assessment in Ireland — When to Get One, What It Costs, and What the Assessor Measures →
- PSCS and PSDP in Ireland — Mandatory Roles Under SHWW 2013, Who Takes Them, and When →
- Retention in a Self-Build in Ireland — 5% Held Back, When It's Released, and the Trap →
- Schedule of Works for a Self-Build — What It Is, Why It Matters, and How to Write One →
Watch out for
Common mistakes, hidden costs, gotchas.
Compare with
Alternative approaches worth knowing.