A busy garage isn't a chaotic garage — it just feels that way when the phone won't stop, the diary is on paper and every mechanic has a slightly different idea of what's happening in Bay 3.
This guide lays out the small operational changes that separate the workshops running at 80% bay utilisation from the ones stuck at 45% and burning out.
1. Plan capacity in bay-hours, not slots
Most diaries treat time as 30-minute chunks. Real work doesn't fit that. Plan capacity as bay-hours per bay per day and let each service consume its real duration.
An MOT is 45–60 minutes. A brake overhaul is 2 hours. A full service is 90 minutes. When those durations are baked in, bookings stop overflowing.
2. Separate fast work from heavy work
Fast Lane work — MOT, oil, brakes, tyres, diagnostics, AC — can be booked online without a phone call. Heavy work (engines, gearboxes, complex diagnostics) belongs behind a conversation.
Splitting these lets you fill your bays with predictable fast work while still quoting properly on the profitable big jobs.
3. Kill no-shows with deposits on the risky slots
Saturday MOTs and school-holiday Mondays are the worst no-show risk. A £10–£20 deposit at booking cuts no-shows by roughly 60–80% without upsetting regulars.
Deposits net off the final invoice, so nobody's really out of pocket — they're just committed.
4. Reserve emergency slots per bay
Walk-ins and breakdowns are revenue, not interruptions — as long as you have somewhere to put them. Reserve one emergency slot per bay per day; if it's not used by 2pm, release it.
5. One status per job, everywhere
The single biggest cause of workshop chaos is different screens showing different truths. If Workshop says 'In Progress' and Payments says 'Completed', someone will get billed wrong.
Use one status flow (NEW → ACCEPTED → IN PROGRESS → WAITING PARTS → COMPLETED → PAID) enforced across every screen.
Frequently asked questions
- What's a healthy bay utilisation?
- Sustained 70–80% is healthy. Above 90% you're too fragile to absorb breakdowns; below 60% you're leaving money on the table.
- How much should the deposit be?
- £10–£20 is enough to filter out no-shows without scaring regulars. Higher for premium tyres or special orders.
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