By Greg Allan, tradesman and creator of Data First Coaching
Why does a generic business coach often fail a plastering business?
A generic business coach often fails a plastering business because the advice is built for any trade at once, not for how a plasterer actually works. Square metre rates on sheeting and setting, drying time between coats, cornice and ceiling jobs priced differently to a full renovation patch, subcontracting to builders who pay on their own schedule, none of that fits a worksheet written for a sparky or a landscaper. Without the plasterer's own numbers in front of them, the coach is guessing.
Most coaching still starts with the owner explaining the business from memory. How many crews are out, which jobs are running over because a wall was not dry enough to set, which builder is sitting on last month's invoice. That explaining costs time the owner does not have, and it is already out of date by the next job.
What goes wrong when a plasterer picks a coach on reputation alone?
A plasterer who picks a coach on reputation alone often ends up being told to hire more labour, raise the square metre rate, or run more advertising, when none of those touch the real issue. A business can look busy with crews moving between three sites and still be bleeding money because two of those jobs are running at a loss once drying delays and recalls are counted.
The usual pattern is this: a builder is slow to pay on a staged job, so the plastering business tightens cash by chasing new work harder, which puts more crews on the road, which stretches the same office hours further across quoting, invoicing and chasing. The coach treats the symptom, busier crews, instead of the root cause, which is usually sitting in the job costing and the aged invoice list the whole time.
What should you ask before you pay a coach?
Before you pay a coach, ask them how they plan to work from your own numbers rather than your story. Ask to see how they would use your quote log, your job costings and your accounting figures in the first session, not the fifth. If the answer is a worksheet or a personality quiz, that tells you plenty.
Ask whether they have run a plastering business or a trade business of their own, under the same pressure of drying time, callbacks and builders paying late. Ask what happens when a problem turns out to be a system issue rather than a people issue, do they fix the system, or do they just tell you to hire someone. A coach worth paying starts from data first, meaning your own job and finance numbers lead the conversation, not a generic framework applied the same way to every trade.
What are the warning signs of a coach who will waste your time and money?
The clearest warning sign is a coach who sells before they ask to see any of your numbers. If the first call is about the programme, the price and the testimonials rather than your quote log or your job costings, the coaching that follows is likely to be just as generic.
Other warning signs for a plastering business owner: every problem gets answered with hire someone or raise your prices, the coach has never run crews or chased a builder for payment, and the advice would read the same if you swapped plastering for painting or tiling. A good coach treats your business as its own case, built from its own data, not as one more client running the same script.
Can you build your own systems instead of renting generic software?
Yes. Instead of renting software built for every trade at once, a plastering business can build tools shaped around how its jobs actually run, its square metre rates, its subcontract work for builders, its crews moving site to site, and let AI agents handle the office work in between. An AI agent is software that does a job the way you would do it, using your own prices, your own wording, your own rules.
Picture a plasterer who loses an hour most evenings chasing quotes that went quiet and invoices that are overdue on a bigger subcontract job. An AI agent placed just before that point, drafting the follow up the way the owner would word it, with the right price and terms already in it, can take that off the owner's plate so the office time goes back into quoting the next job properly.
That does not mean every piece of software a plastering business already uses should be dropped. Some off-the-shelf job management or accounting tools suit a particular business well, and the data, how often it is actually used, what it does and does not capture about drying time or crew scheduling, shows which ones earn their place and which ones are just another subscription doing half a job.
How does Data First Coaching approach this?
Data First Coaching, created by Greg Allan, a tradesman who ran his own trade business, starts from the plastering business's own numbers through the Trade Business Intelligence Agent, reading the job and finance data the business already has, quote log, job costings, aged invoices, alongside years of coaching trade businesses.
From there it finds where a problem actually starts, whether that is a pricing gap on certain job types, a scheduling clash between crews, or invoices going out too late, and puts in the system or AI agent that fixes that root cause. The coaching goes where the data points, not where memory or habit points.
Looking for a business coach who starts from your numbers? Plasterer Business Coach or every answer for plasterers.

