Why Your Technicians Are Underutilised (And What to Do About It)

You have five technicians on the payroll. That is 200 billed hours available each week. But you are only invoicing 130. The missing 70 hours are sitting there unpaid — draining your profitability every single week. Here is where those hours go and how to get them back.

What Utilisation Really Means

Utilisation is simple: it is the percentage of your technician’s available time that you are actually billing to customers. If a technician works a 40-hour week and you bill 30 of those hours, your utilisation is 75%. The other 10 hours — 25% — are sitting there costing you money.

This sounds straightforward. It is. But most workshop owners do not measure it properly, which means they do not see the problem until it shows up in their profit number.

Here is what matters: you are paying your technician for 40 hours. Whether you bill those 40 hours or not, you are paying the wages. You are paying the superannuation. You are paying the payroll tax. The only variable is whether the customer is footing that bill or whether you are absorbing it.

At 75% utilisation, you are eating 25% of your labour cost. That is $15,000 per year per technician, gone. With five technicians, that is $75,000 in ghost cost that never makes it to your profit line.

The Seven Time Wasters That Kill Utilisation

Your technicians are not lazy. They are not sitting around doing nothing. But somewhere in their day, 25–35% of their time is walking away unbilled. That time is being spent on seven common things:

1. Waiting for parts — The technician pulls the car in to start the job. The part has not arrived yet. He waits. Or the job is halfway through and the next part is stuck in a supplier’s pipeline. He sits idle rather than pulling another job into the bay because he thinks this job is almost ready to complete. Parts delays are the single biggest time waster in most workshops. It is not the technician’s fault. It is a supply-chain problem.

2. Unclear job allocation — Nobody told the technician which job he is supposed to start when the current one finishes. He waits for you or the foreman to tell him what is next. He might read the job board wrong or pull something from the queue that is not actually ready to go. This is a process failure, not a people failure. But it is costing you.

3. Come-backs and warranty work — The job was completed. The customer came back. The issue was not what everyone thought. Now the technician is doing 5 hours of unpaid rework because the diagnosis was wrong or something was missed the first time. This is real work, but it is not being billed. Every workshop has some warranty percentage — the industry norm is 3–5%. If yours is higher, something is systematically broken with your diagnostics or quality control.

4. Administration tasks done by technicians — Your technician answers the phone. He writes up the job card. He updates the system. He sorts paperwork. Every hour he spends doing admin is an hour he is not turning spanners. Many workshops have deliberately embedded admins into the workshop to reduce this burden. Many others have not. If your technicians are doing admin, your utilisation is bleeding out.

5. Lack of proper tooling — The job requires a specialist tool your workshop does not own. The technician rigs a workaround or waits for you to source the tool. What should take 2 hours takes 4. The time difference is invisible on the job card because you are not tracking where the hour went. But you are absorbing it in your effective labour rate.

6. Scope creep and quote overruns — The quote said 4 hours. The job took 5. You only charged for 4. That is an hour of unbilled labour walking out the door. This happens constantly in workshops because estimates are often educated guesses, not exact calculations. Every hour of overrun is a utilisation leak.

7. Poor scheduling and job flow — The job board is a disaster. Jobs are not sequenced in a way that keeps bays flowing. There is a gap between job completion and the next job starting because nobody prepared the vehicle or pulled what is needed. A 10-minute gap between every job adds up to 3–4 lost hours per week across a team.

How to Measure Utilisation Properly

You cannot fix what you do not measure. Most workshops do not measure technician utilisation at all — or they measure it wrong.

The correct calculation is this: take your total labour revenue for a week (actual money billed to customers), divide it by the standard labour cost of having your technicians available (total wages + superannuation + on-costs, divided by billable hours available).

If five technicians work 40 hours each = 200 available hours. Your total labour cost for that week (wages + super + tax) is $8,000. That is a standard cost of $40 per hour. If you billed $5,200 in labour that week, your utilisation is $5,200 ÷ $8,000 = 65%.

Track this weekly, not monthly. Weekly data shows you problems immediately. Monthly averages hide the bad weeks. If last week hit 75% but this week dropped to 58%, you can diagnose what changed.

Practical Fixes for Each Time Waster

Parts delays: This is not something your workshop technicians can fix alone, but you can. Create a parts pre-check process. Before a job is scheduled to start, confirm that all known parts are in stock or on order with a confirmed arrival. If a critical part is delayed, communicate with the customer upfront and reschedule the job. Do not put a technician into a bay with incomplete parts. Also, negotiate better lead times with your suppliers. A 48-hour lead time instead of a 5-day lead time is worth negotiating hard for.

Unclear job allocation: Install a visible job board that is updated in real time. Every technician should know what is next before the current job finishes. Some workshops use a digital board, some use a physical whiteboard. The method does not matter. Clarity does. The foreman should walk the board every morning and ensure jobs are sequenced logically — parts-ready jobs first, complex jobs for your best technicians, simple jobs for your newer ones.

Warranty and comebacks: Track these separately. If warranty is climbing above 5%, investigate. Are diagnostics being rushed? Are quality checks missing? Are techs not spending enough time on the initial repair? Do not hide warranty work in the general labour costs. Make it visible. When the technician sees that warranty work is hitting 8 hours a week, they pay attention.

Admin work: Hire a dedicated admin or workshop assistant if you have the headcount budget. If not, reduce the administrative burden on technicians by streamlining paperwork, using digital job cards that auto-populate from the customer record, and having someone (you, the foreman, or an admin) answer phones and manage interruptions. Every phone interruption during a complex repair costs you 20 minutes of refocus time, not 5 minutes.

Tooling gaps: Audit your workshop once a year. What specialist tools are missing? What takes longer because of poor tooling? Budget for these. A $3,000 tool that saves 200 hours of labour per year pays for itself in 3 weeks. It is not a luxury. It is a utilisation multiplier.

Quote overruns: Stop using educated guesses. Use historical data. Pull up the last five jobs of the same type. How long did they actually take? Use that as your estimate baseline, then add 10% for unknowns. Do not estimate based on memory or optimism. Use your job history.

Scheduling and job flow: Pull every job that is supposed to start the next morning and prepare it before you close. Have parts ready, have the vehicle positioned in the right bay, have the technician brief ready. This 30-minute prep at day-end saves 3 hours in lost flow time the next day.

The Link Between Utilisation and Profit

Here is why this matters beyond just the utilisation number itself. Every percentage point of utilisation you recover is direct profit.

Take a five-person workshop with an effective labour rate of $110 per hour (this is what you actually earn after all overruns, warranties, and discounting). That is 200 available hours per week.

At 70% utilisation, you are billing 140 hours. That is $15,400 per week in labour revenue, or $800,800 per year.

At 85% utilisation, you are billing 170 hours. That is $18,700 per week in labour revenue, or $972,400 per year.

The difference is $171,600 per year. You did not hire anyone. You did not work harder. You fixed the time wasters and recovered labour that was already there. That $171,600 flows straight to your gross profit — assuming your labour ratio is sound.

The Bottom Line

Your technicians are probably not underutilised because they are lazy or unmotivated. They are underutilised because your processes are broken. Parts are delayed. Jobs are not queued clearly. Diagnostics are wrong the first time. Admin work is interrupting paid work. There is no visibility into what comes next.

Fix the process, not the person. Measure utilisation weekly. Hunt for the seven time wasters. Eliminate them one at a time. That 70% utilisation can become 85%. And that 15-point improvement is worth $100,000+ of profit sitting there, waiting for you to claim it.

Your technicians will thank you too. They will spend less time frustrated by delays and more time doing what they are good at: turning spanners and making money for the workshop.