By Greg Allan, tradesman and creator of Data First Coaching
Why does a stonemasonry job lose margin even when the quote looked right?
A stonemasonry job rarely loses margin in one place. It leaks a little at templating, a little more in CNC cutting, a little more again in polishing, until the job that looked profitable on the quote comes in thin once it is installed. Most owners only see the total at the end, by which time the leak has already happened on every stage.
A benchtop quote for a kitchen company or a builder usually covers material, templating, cutting, polishing and install as if they were one job. In reality they are five separate stages, each with its own cost driver. Natural stone slab yield is different from engineered stone. CNC time on a complex cladding or paving job is different from a straightforward benchtop. An apprentice taking longer in the workshop costs differently to a tradesman doing the same cut. When all five stages sit inside one lump figure, a rise in slab price, a slow polish, or a templating redo because a measurement was wrong all hide inside the same number until the job is closed out and the margin is already gone.
What does a stonemason's quote miss when it is one lump figure?
A single price per job hides which stage is actually costing the business money, so the same mistake repeats on the next benchtop or memorial without the stonemason ever seeing where it started. Breaking the quote into its real components, material, templating, CNC cutting, polishing, install, shows each part separately and lets the price move the moment one part changes.
Stone suppliers change slab pricing through the year, and a stonemason who quotes from memory or from last year's rate card is pricing against numbers that have already moved. If the quote is itemised by stage, a material price rise only needs to adjust the material line, not force the owner to guess at a whole new job rate. If a fabrication stage is slower than expected on a run of jobs, that shows up against that stage specifically, not buried as a vague feeling that jobs are taking longer than they used to.
How do you protect margin at each stage of a stone job?
You protect margin by pricing per component, material, templating, cutting, polishing and install, so each part of the job is visible on its own and can be adjusted the instant a cost changes, instead of carrying one guessed rate through the whole job.
When you can see the templating stage against its own cost, the CNC and cutting stage against its own cost, and the polishing and install stage against its own cost, gross profit margin becomes something you check on every quote, not something your bookkeeper finds at the end of the month. This matters most on natural stone, where slab variation, cutting waste and sealing time can differ job to job, and on complex cladding, paving or restoration work, where the labour stage can run long without anyone noticing until the job is done.
How do you stop an apprentice's error from reaching a customer's benchtop?
You stop it by testing your own process on yourself before an apprentice ever runs it, so the gaps show up in your workshop, not on a customer's installed slab. A stonemason who has never written down the steps for templating, cutting, polishing and sealing is relying on memory to train every new apprentice, and memory changes from job to job.
Silica dust and safety procedures in the workshop are an obvious place this matters, but it applies just as much to the quality steps: how a template is checked before it is sent to CNC, how a polish is checked before install, how a natural stone slab is matched for colour and vein before it is cut. If the owner has run through the process themselves and documented it, an apprentice following the same steps is far less likely to produce the error that turns into a remake, a delay, or a customer complaint on a finished benchtop.
Should a stonemason build their own system or rent one built for every trade?
Some off-the-shelf software suits a stonemasonry business well enough, particularly for simple scheduling or invoicing, and the owner's own data shows which of those tools earns its place and which one is being paid for out of habit. The stronger shift for many stonemasons is building systems shaped around how their own jobs actually run, with AI agents taking on the office work between stages instead of software built for every trade at once.
An AI agent is software that does a job the way the owner would do it, using the owner's own prices, wording and rules. Picture a stonemasonry business where leads, quotes, job profit and supplier emails were scattered across different places, and every quote meant working out slab yield and cutting time by hand after a site visit. What changes with the owner's own system is that it tracks every lead through from first enquiry, works out material and cutting cost at the quote stage, reports profit on each job automatically, turns supplier and customer emails into tasks, and fills in a quote from photos taken during a site template. This is what data first means for a stonemason: the numbers from the owner's own jobs decide where the system goes to work, not a guess about what the business needs.
How does Data First Coaching approach this?
Greg Allan's Data First Coaching starts from the owner's own job and finance data through the Trade Business Intelligence, looking first at which stage of the job, material, templating, cutting, polishing or install, is actually where the margin is leaking, rather than treating the whole quote as one number. As Greg puts it, “we price per item, it makes it nice and clear so you understand the costs associated with the job”, and he also teaches owners to “document it and test your own systems on yourself” before handing any process to staff. The how of building that per-stage system is worked through inside the Academy, with members, because the Trade Business Intelligence is powered by every member who joins, and the Academy is built for stonemasons and other trade owners who are open minded, innovative and willing to share what they learn.
