Why do profit margins erode even when you are busy?
You can be fully booked and still be losing money. The problem is unbillable time and costs that creep up without you noticing. If your team is taking longer than you have allowed for, that extra time comes straight out of your profit. If material prices have risen and you have not updated your price list, you are effectively subsidising your customers.
Labour cost makes up around 30 per cent of your total business costs. That makes it the single biggest lever on your margins, and the one most trade business owners check least often.
What are the main things you need to review regularly?
There are four core areas to keep on top of.
Billable time versus actual time. This is the most important check in any job. If you have a net profit margin of around 15 per cent and a job takes 15 per cent longer than allowed, that is your entire profit gone on a labour-only job. If it takes 30 per cent longer, say you allowed 10 hours and it takes 13, all of your profit is gone.
Material costs. Material prices tend to rise every year, broadly in line with inflation. If you set your price list once and never updated it, that annual increase in material cost is being absorbed by your margin. Over a couple of years you can move from healthy markup to effectively giving materials away.
Cost of operations. As your business grows you add staff, advertising, rent, and other overheads. If you are not recalculating your cost of ops when you make these changes, you may be taking on costs that your pricing cannot cover.
Team efficiency and material wastage. A team member who consistently finishes jobs faster than allowed is a multiplier. One who runs over time or wastes materials is quietly destroying margin. If your overall monthly profit looks fine, it may be one or two high performers masking the rest of the team.
How does the three-point check work on each job?
For every job, check three things: the actual time recorded against each item in the job notes, the estimated time you allowed for that item in your quote, and the total time on site.
If a technician records 45 minutes for a task you allowed 60 minutes for, that is a positive efficiency. If they record 90 minutes, that is a signal to ask whether the job was a non-standard install and whether a variation was discussed with the customer.
The total time cross-check catches missing job notes. If the individual items add up to 55 minutes but the technician was on site for 90 minutes, something happened that was not recorded. That conversation needs to happen before the invoice goes out, not weeks later.
For larger projects, apply the same logic through work-in-progress tracking. Watch the hours accumulating against your cost centres so you can flag variations early rather than discovering the blowout at the end.
How often should you review your pricing?
The right frequency depends on the type and volume of work you do.
- Daily or weekly reviews suit businesses doing high volumes of repeat jobs, where a small inefficiency at scale becomes a large one quickly.
- Monthly reviews work for businesses where job types vary more.
- Quarterly and annual reviews are for deeper market checks: are your prices still competitive, are you in the right range for the market, have costs shifted enough to require a full reprice?
- Ad hoc reviews should be triggered by any significant change, such as hiring a non-billable staff member, taking on new premises, or investing in equipment.
The key is assigning responsibility. If no one owns the review, it will not happen.
What does a daily supervisor review actually look like in practice?
One way to do this is a structured supervisor checklist completed each morning covering the previous day. The checklist can capture billable hours versus actual hours worked across the team, time lost to sick leave or annual leave, jobs without photos attached, callbacks and hours lost to them, and time spent on quoting.
With those numbers in a data board, you can see each supervisor's team efficiency at a glance. You can spot whether sick leave is seasonal, whether callbacks are concentrated with one technician, and whether quoting time is getting out of hand.
Tracking this data consistently is what surfaces problems you would otherwise miss. Without it, you can go months paying for inefficiencies that a small process change would fix.
How does reviewing operations uncover costs you did not know you had?
A review of how your team actually spends time during the day can reveal costs that never appear in your job management system. The discipline of measuring and questioning each category of activity is what turns a general sense that something is off into a specific, fixable problem. Without that review habit, the costs stay hidden and you keep absorbing them.
