Where margin actually goes

Ask why a job made three per cent instead of eight and the answer is usually a shrug. There was no catastrophe. It was a reasonable job with reasonable people and it simply did not make what it should have.

The five per cent went somewhere, and it went in pieces small enough that nobody escalated any of them.

The usual leaks

Instructed work never valued. An instruction with a cost effect and no variation raised against it. The work was done, it cost money, and there is no route into the account. On a busy job there are usually three or four.

Dayworks submitted and never agreed. Sheets go in, nobody chases, and at the final account they are six months old with no signature. They are then settled at a discount or abandoned.

Loss and expense never claimed. Disruption is felt on site and mentioned in meetings, and no notice is given and no records are kept. By the account there is nothing to ascertain from.

Variations priced optimistically and settled low. Carried at application value in every internal report, settled at sixty per cent of it, and the difference appears as a single adjustment nobody forecast.

The ones that are structural

Preliminaries running longer than priced. The programme extended, the site team stayed, and the additional time was never claimed because no relevant matter was identified at the time.

Scope gaps absorbed. Work at an interface that nobody priced, done because it was needed, never raised because raising it felt petty.

Retention released late. Not a loss exactly, but a year of financing cost on money that should have been back.

Why they are invisible in reporting

Because none of them produces a cost. They produce an absence of value, which does not appear in a ledger. A cost report shows what was spent; it does not show what should have been earned and was not.

That is why the leaks only surface at the final account, when the value side is finally closed and the total is compared against what was assumed.

The monthly discipline that stops it

• Every instruction with a cost effect: is there a variation against it?
• Every daywork sheet over thirty days old: has it been agreed?
• Every delay event: has a notice been given, and are records being kept?
• Every variation carried internally: is it at settlement value or application value?

Four questions, twenty minutes, once a month. It is the highest-return administrative task on any construction project and it is the first one dropped when the job gets busy.