By Greg Allan, tradesman and creator of Data First Coaching
Why does a builder's gross margin look healthy on the quote but the job still lose money?
Most builders quote a fixed price or cost plus job as one bottom line number, built up from labour, materials, subcontractor cost and a margin the estimator has pencilled in. When overhead gets blended into that single figure instead of carried against each line, the quote can show a healthy gross margin on paper while the job itself, once it moves through frame stage, lock-up and handover, returns far less once everything is accounted for.
A renovation or extension with a run of variations can hide this even further. Each variation gets priced on the fly, often at a rushed margin, and folded into the same progress claim as the original contract. The builder sees cash coming in at each stage and assumes the job is tracking, when the true gross profit margin on that job, the number that should be protected and grown every month rather than checked once at quoting stage, has already slipped.
What does that hidden gap actually cost a builder before any coach gets involved?
The profit built into a quote is only ever an estimate against planned hours and planned material cost. The real cost of running the job gets calculated against the whole day or the whole site, not the neat hours on the estimator's sheet, so any delay waiting on a certifier, any subcontractor running late, any defect found at handover, quietly eats into the margin the builder thought they had.
This is the cost that shows up long before a coach is hired. A builder running several jobs through council approval, frame stage and lock-up at once can be carrying this gap across every one of them without ever seeing it, because the only number anyone looks at is the one at the bottom of the quote.
So how much should you expect to pay for a business coach for your building business?
Fees for a business coach vary, and the number on its own tells you very little. What matters far more is whether the coach starts from your own job and finance data or from a generic framework, because a coach working from your actual numbers is working on the real gap in your margins from the first conversation, not months into the relationship.
A coach worth paying for should be able to look at your fixed price and cost plus jobs, your progress claims and variations, and your subcontractor costs, and tell you where the gross profit margin is actually sitting, not where the quote said it would be. That is a data first way of working, and it changes what the fee is actually buying you.
What should you ask before you hire a business coach for your building business?
Ask whether the coach has run a building business themselves, whether they start from your own data or ask you to explain your business to them, and whether they fix the root cause of a margin problem with a system or just hand you a worksheet and move on. A coach who answers every problem with “hire someone else” is not fixing anything.
Greg Allan, who built his own trade business before coaching other owners, starts every conversation from the owner's own numbers rather than a generic template. Warning signs to watch for include a coach who leads with a sales pitch before asking a single question about your jobs, one who has never carried a defect list through to handover themselves, and advice that would read the same for a plumber, an electrician or a builder.
How can AI agents show you where the margin gap is before you pick up the phone to a coach?
An AI agent is software that does a piece of office work the way you would do it yourself, using your prices, your wording and your rules, so it can sit inside your business and surface the gap between quoted margin and real margin without you having to go looking for it. AI agents can be set to watch the exact spots where a building business loses margin quietly: materials pricing, subcontractor invoices and variation costs.
Picture a builder whose main supplier sends every invoice as an emailed PDF. He has no easy way to see what he is actually paying for materials from job to job, or to spot when a price has crept up between one order and the next. An agent built to gather every supplier invoice, build up his real materials pricing and produce a discrepancy report, now running on its own every month, gives him that picture without anyone in the office doing the work by hand.
How does Data First Coaching approach this?
Data First Coaching, built by Greg Allan, starts from the builder's own job and finance data through the Trade Business Intelligence rather than from a general framework. For a question about coaching cost, that means looking first at where a builder's quoted margin and real margin are drifting apart, whether that starts in how fixed price and cost plus jobs are built up, how variations are priced, or how overhead is carried across subcontractors and site time, before any talk of a coaching fee.
Greg says “people aren't used to that, they want to know what is each item cost”, which is exactly why pricing broken down item by item matters more than a single quote number. The how of building that into a builder's own systems is worked through inside the Academy, with members, because the Trade Business Intelligence is powered by every member who joins, and the Academy looks for owners who are open minded, innovative and willing to share.
Looking for a business coach who starts from your numbers? Builder Business Coach or every answer for builders.
