Hiring Contractors Yourself vs a Project Manager: Which Costs Less?

Running the trades yourself sounds cheaper: no contractor's margin, direct rates, full control. The arithmetic is more complicated than the pitch suggests, and the difference usually shows up in time rather than in the quotation.

What the Margin Actually Buys

A turnkey contractor's margin covers coordination, the risk of rework, and the cost of carrying trades between stages. Removing the margin does not remove the work — it moves it to you.

The Cost of Coordination

Sequencing fifteen to twenty trades across nine months is a job in itself. Every morning spent waiting for a mestri who did not arrive is a morning not spent earning, and every week of slippage carries interest on whatever is borrowed.

Where Doing It Yourself Wins

If you have built before, know your trades personally and can be on site most days, direct engagement genuinely costs less. That is a real answer for some owners and we say so.

The Project Manager Alternative

A project manager runs procurement, contract administration, the programme and quality on your behalf, for a fee that generally sits well below a turnkey margin. You keep the direct rates; somebody else chases the plumber.

Is running the trades myself actually cheaper?

Only with prior experience, existing trade relationships and time on site. First-timers usually spend the saving on rework and delay.

What does a project manager cost?

Typically a percentage of construction value, generally well below a turnkey contractor's margin.

Can I bring one in mid-build?

Yes, and it is common once a programme starts slipping. Earlier is cheaper than later.