The Cheapest Day Rate Costs More: Run the Maths

Every DC and fit-out programme has a moment where a spreadsheet says the cheapest engineer wins. The rate is real; the saving usually is not. The gap between a cheap hire and a vetted engineer at a fair rate is not the day rate — it is everything the cheap rate silently assumes you will absorb.

What the cheap rate leaves out

The lowest quote is usually low for reasons that never appear on the quote:

• References nobody actually called
• Test kit that is missing, borrowed or out of calibration
• Cards and certs that will not clear site induction
• No insurance worth the name behind the work
• No bench behind the individual if they drop out

Day one, lost

Start with the most common failure: the engineer arrives and cannot get on site. Expired card, wrong card, no induction booking, no RAMS acknowledgement. You pay for the day either way — and the programme loses the day too, which is the more expensive half. On a site with booked access windows, one lost day can push the whole sequence back a week.

The rework multiplier

Now the expensive one. Substandard work is rarely caught the day it happens; it is caught at test, or worse, at handover — after ceilings are closed, floors are down and other trades have moved in. Rework at that stage carries the full programme overhead: out-of-hours access, permits reopened, retesting, and often another trade paid to open and close the path.

Run the maths on a ten-day job. The gap between the cheapest quote and a properly vetted engineer typically adds up to about a grand over the programme. One day of late-stage rework — access, labour, retest, another trade in attendance — clears that saving on its own, and rework rarely travels alone. The maths only ever runs one direction.

The rate is the number you see. Rework is the number you pay.

Crews that vanish

The quiet cost: cheap labour is loyal to the next rate, not to your programme. An engineer who leaves mid-job takes site knowledge with them — what was agreed verbally, which routes changed, where the part-finished work sits. Replacing them costs recruitment time, re-induction and days of a new person rediscovering what the last one already knew. None of that appears on any invoice, and all of it lands on the programme.

What a fair rate actually buys

A vetted engineer at a fair rate is not a premium product. It is the baseline done properly: references checked before day one, calibrated test kit with certificates to prove it, cards and inductions cleared in advance, insurance that stands behind the work, and continuity if life gets in the way. The fair rate prices in the checking. The cheap rate prices it out — and hands you the bill later, with interest.

Compare total cost to programme completion, not the day-rate column. If the numbers on your current job are starting to run the wrong direction, we should talk. Talk to us about vetted engineers