Where Construction and Trade Contracting Businesses Lose Margin

Most contracting businesses run on the founder's memory. Quotes are built from the last similar job, variations are agreed on site and invoiced late or never, and job status lives in text threads. The result is predictable: margin decided at quote time is lost in delivery, and nobody can say which jobs made money until the accountant reports it months later.
What disciplined infrastructure looks like
A quoting system with current cost rates, so every estimate starts from today's numbers, not last year's. Variation capture at the point of agreement, priced before the work is done. A single job board showing every active project, its stage, and its committed costs. A weekly report that shows margin by job while there is still time to act on it.
The test
If a director cannot name the three least profitable current jobs without calling the bookkeeper, the infrastructure is the problem, not the market.

