The Metric Most Shops Ignore
Ask any garage owner about their shop's revenue, and they'll have a number. Ask about their technician efficiency, and you'll usually get silence.
Technician efficiency is the most overlooked metric in shop management, and it has more impact on your bottom line than almost anything else.
What Is Technician Efficiency?
Technician efficiency measures how much of a tech's clocked time generates revenue.
Efficiency = Billed Hours ÷ Clocked Hours × 100
Example:
• Tech clocks in for 8 hours
• Tech bills out 6.5 hours of work
• Efficiency = 6.5 ÷ 8 = 81%
An 81% efficiency rate is generally considered good. But here's where it gets interesting: the difference between 70% and 85% efficiency can mean thousands of dollars per month.
The Math That Changes Everything
Let's look at two technicians with different efficiency rates:
The gap: $2,880/month or $34,560/year, from the same payroll cost.
That's not a slight difference. That's a new lift or a vacation for the owner.
Where Does Time Go?
When efficiency is low, the lost hours fall into a few categories:
1. Waiting
• Waiting for parts
• Waiting for diagnosis
• Waiting for bay assignment
• Waiting for customer approval
2. Non-billable Tasks
• Moving cars
• Cleaning workspace
• Finding tools
• Walking to the front desk
3. Rework
• Comebacks that require unpaid labor
• Jobs that take longer than estimated
4. Administrative Time
• Clocking in/out
• Writing notes
• Reviewing job assignments
Why Tracking Matters
You can't fix what you can't measure.
Without tracking efficiency:
• You don't know who your top performers are
• You don't know where time is being lost
• You can't compare performance over time
• You're guessing at capacity
With tracking:
• You identify training opportunities
• You spot workflow bottlenecks
• You make better hiring decisions
• You set realistic goals
Setting Realistic Benchmarks
Industry benchmarks for technician efficiency:
Note: Efficiency varies by job type. Complex diagnostics naturally have lower efficiency than routine services.
Common Causes of Low Efficiency
Shop Workflow Issues
• Poor job scheduling
• Parts not ready when tech is
• Customers approval delays
Training Gaps
• Tech unfamiliar with certain repairs
• Lack of diagnostic skills
• Needing help from senior techs
Equipment Problems
• Broken or missing tools
• Shared equipment creating bottlenecks
• Outdated diagnostic equipment
Motivation Issues
• Unclear expectations
• No visibility into their own performance
• Lack of recognition for good work
How to Track Efficiency
Manual Method
• Techs write start/stop times per job
• Compare to hours billed on invoice
• Calculate weekly efficiency per tech
Works, but requires discipline and creates paperwork.
Digital Method
• Use shop management software with time logging
• Automatic calculation of efficiency
• Real-time visibility for owners and techs
Less friction, more accurate, easier to sustain.
Having the Efficiency Conversation
Sharing efficiency data with technicians can be tricky. Handle it well:
Do:
• Share individual data privately
• Focus on improvement, not blame
• Highlight what's causing the lost time
• Set collaborative goals
Don't:
• Post rankings publicly (creates resentment)
• Punish without understanding causes
• Ignore systemic issues that affect everyone
The Goal Is Progress, Not Perfection
You're not trying to squeeze every second out of your techs. You're trying to:
• Identify waste in your workflow
• Remove obstacles that slow people down
• Recognize your top performers
• Support techs who are struggling
A 5% improvement in average efficiency translates directly to revenue growth with zero increase in labor cost.
Start Tracking This Week
Here's a simple action plan:
• Day 1-2: Have techs log their start/stop times per job
• Day 3-5: Calculate billed hours vs. clocked hours
• Week 2: Review the data; identify patterns
• Week 3: Address one workflow bottleneck
• Ongoing: Track efficiency weekly; discuss monthly
Within a month, you'll have insights you've never had before.
Your Techs Are Your Business
Every shop's #1 expense is labor. Every shop's #1 asset is skilled technicians.
Efficiency tracking isn't about squeezing more blood from the stone. It's about understanding how your most valuable resource is being used, and making sure nothing is being wasted.
The shops that win are the ones that know their numbers. Start with efficiency.