By Greg Allan, tradesman and creator of Data First Coaching
What numbers do most plumbers already track, and why do they still fall short?
Most plumbers already watch the numbers that are easiest to see: jobs invoiced, money in the bank, maybe the quote to job ratio. These matter, but they are lagging. They tell the owner what already happened, usually a month after it happened, and by then the margin on a dozen jobs has already been lost.
A plumbing business runs on quoted hours against real hours. A blocked drain quoted at a set price assumes a set amount of time on the tools. A hot water replacement, a bathroom reno stage, a backflow test and certificate, each one has a time built into the price. None of that shows up on an invoice. The invoice only shows what was charged, never what it actually cost in hours to deliver.
Why can a fully rostered week still produce no profit?
A plumbing crew can be rostered for a full week, billed out for a full week, and still return nothing to the bottom line, because the hours quoted and the hours actually spent on site have quietly drifted apart. Nobody is watching that gap because nobody is tracking it weekly.
This is the part most owners miss. A plumber can look at a healthy job list and a full diary and still be losing money on every second job, because travel blew out, a gas fitting job needed a second trip for parts, or an apprentice took twice the quoted time on a bathroom rough-in. None of that is visible in the bank balance until the quarter closes and the number is worse than expected.
Picture a plumbing business where the licensed tradespeople were spending real chunks of their week in the office, working up technical quotes for bathroom renovations and commercial backflow jobs, instead of being out on the tools. Nobody had put a number on it, so it looked like normal office work. Once the business started tracking the hours each tradesperson actually spent on billable work against total hours paid, the gap was plain to see. Low weeks now lead to a direct conversation about who is on the road and who is at a desk, rather than a guess at the end of the month.
What two weekly numbers actually show the truth?
Two numbers matter more than any other for a plumber who wants to catch a margin problem before it eats the quarter: billable hours against hours actually on the job, and billable hours against total hours paid for. The gap between those two numbers is the gap between the quoted margin and the real one.
The first number shows whether jobs are taking longer than they were quoted to take, whether that is a blocked drain that turned into a full relay, or a hot water unit that needed extra fittings nobody priced in. The second number shows whether the crew's paid time, including travel, training, apprentice supervision and time in the office on quotes, is actually converting into chargeable work.
Neither number is complicated to understand once it is in front of an owner. The problem is almost nobody is pulling it together weekly, so it sits invisible until the bank account forces the conversation.
How do AI agents help a plumber keep this number without more admin?
An AI agent is software that does a job the way the owner would do it themselves, using the owner's own prices, wording and rules. For this number, an agent can sit across job data and timesheets and keep the hours picture current every week, without a plumber or an office admin person building a spreadsheet by hand.
This matters because the plumbers who would benefit most from this number are also the busiest ones, the owners running jobs, quoting bathroom renos and answering emergency callouts, with no spare hour to compile reports. Data first means the number comes from what the business is already doing, job by job, not from an owner stopping to describe the week to someone else.
AI agents can also flag the moment a job type is consistently running over its quoted hours, whether that is backflow testing, strata maintenance work or gas fitting compliance jobs, so the pricing on that job type can be looked at before it happens on the next ten jobs.
What should change once a plumber sees this number every week?
Once a plumber can see billable hours against hours worked every week, decisions change from guesses to conversations grounded in the business's own numbers. A low utilisation week for one tradesperson is no longer a vague feeling that someone seems slow, it is a specific number to talk through.
For a plumbing business this can mean moving a licensed tradesperson off office quoting and back onto the road where their billable time is worth more, adjusting how a certain job type is quoted, or looking again at how much travel time between jobs is being priced in. None of this needs a bigger team or new software bought off the shelf. It needs the right weekly number, and a plumber willing to look at it honestly.
How does Data First Coaching approach this?
Data First Coaching, built by Greg Allan, starts from the plumbing business's own job and timesheet data through the Trade Business Intelligence, not from the owner explaining what they think is happening. For this question it looks first at labour and job hours, because that is usually where a margin problem actually starts, long before it shows up as a cash problem. As Greg puts it to owners looking at their own numbers for the first time, “You've got a pricing problem. You're actually not making profit.” The how, building the weekly view and deciding what to do with it, is worked through inside the Academy, among members who are open minded, innovative and willing to share, because the Trade Business Intelligence is powered by every member for every member.
Looking for a business coach who starts from your numbers? Plumber Business Coach or every answer for plumbers.
