THE BLOG for Auto Repair Shops

How Auto Repair Shops Are Making Four-Day Workweeks Work

Written by Eric Joern | · December 01, 2025

A lot of shop owners aren't convinced a four-day workweek can work in auto repair. You need cars in bays, techs turning hours, and steady communication with customers. On the surface, it feels like a fast track to lower productivity.

But more shops are testing new schedules to reduce burnout, stabilize workflow, and keep technicians longer. When a shop is booked one to three weeks out, the bays stay full. And when the team is structured well, a four-day week can actually improve output—not hurt it. The key is using a schedule that supports the work, not one that works against it.

Here’s how shops are approaching the change, where it works, where it doesn’t, and how to test it inside your own workflow.

What a Four-Day Work Week Actually Looks Like in a Shop

A shorter week can take different forms: longer days, staggered days off, or a model where the shop stays open Monday through Friday while techs rotate. What matters isn’t the specific setup, but whether the mix of technicians is balanced, diagnostics land on the right days, and workflow moves cleanly from one bay to the next.

A well-structured four-day workweek doesn’t reduce car count. It simply reshapes how the work flows through the shop. When a shop is booked out, customer demand naturally fills the available slots. As long as bay coverage stays balanced and communication stays clear, most shops don’t lose throughput.

 

Scheduling Models That Work in Auto Repair

Staggered Technician Teams

Team A: Monday–Thursday
Team B: Tuesday–Friday

All bays stay active because each day has full coverage. Staggering also improves continuity—repairs don’t stall just because one tech is off.

True Four-Day Schedule (Closed One Day)

Shops booked out two to four weeks often lose zero car count because demand compresses into the four working days. With a tighter schedule and steady backlog, workflow stays full and revenue remains stable.

✔ Four Tens

Longer days work well in mechanical-heavy shops where production is steady across the day. In diagnostic-heavy shops, focus can drop late in the day, so results vary based on workload mix.

Variable Days Off

Techs choose a weekday off as long as bay coverage remains balanced. This creates flexibility for your team while keeping workflow predictable for the shop.

Eric Joern shares how leadership, workflow, and scheduling decisions shape whether a four-day workweek succeeds in a small business.

What Makes the Shorter Week Fail

Shops run into problems when they skip planning. If you don’t track flag hours, bay utilization, cycle time, and comebacks, you can’t measure the impact. If diagnostics land on the wrong day or techs don’t have the right support, bottlenecks appear fast. And if customer communication slips, doubt creeps in—even if the work is still getting done.

A shorter week works when the shop has structure. When it doesn’t, the schedule amplifies the weak spots already in the workflow.

How to Test It in Your Shop

Start with a structured trial so you can compare real results. You don’t need a huge sample size to see trends. Four to eight weeks is enough to understand whether a shorter schedule fits your workflow, your team, and your customer demand.

6 Questions to Answer Before Testing

  1. How many weeks out are you booked?
    Shops booked one to three weeks out have more flexibility because car count naturally pulls into the remaining working days.
  2. Will staggered schedules keep bay coverage consistent each day?
    Map out who turns hours in which bays. Coverage gaps create cycle-time delays that will skew your trial results.
  3. Do you have the right mix of A, B, and C technicians?
    A short week exposes skill gaps fast. Make sure diagnostics, mechanical work, and maintenance work can still move each day.
  4. How will diagnostic work move if the diagnosing tech is off the next day?
    Diagnostic-heavy days require continuity. Plan how those vehicles will move if the diagnosing tech is off the next day.
  5. Can the team maintain focus and quality during longer days?
    If your team is already fatigued, adding longer days will drive efficiency down, not up. Start with honest conversations.
  6. How will customer communication work?
    Decide who owns updates each day. Missed updates and unclear expectations will make the schedule look worse than it is.

6 Metrics to Track During the Trial

  1. Car count and billed hours
    This tells you whether the shorter week is lowering capacity or simply compressing it.
  2. ARO
    Watch whether average repair order climbs, drops, or stays steady. Efficiency gains often push ARO up.
  3. Bay utilization and workflow timing
    See how long vehicles sit between steps. If timing spreads out, you may need to adjust staffing overlaps.
  4. Comebacks
    A spike in comebacks means the pace is off or quality is slipping. That’s a clear red flag.
  5. Customer wait times
    Track promise times vs. actual delivery. This is a leading indicator of whether the schedule is helping or hurting throughput.
  6. Technician satisfaction and fatigue levels
    If output is holding but the team is burned out, the structure won’t last. Ask for feedback weekly.

Once you’ve tracked the right metrics each week, evaluate the trends to see whether the shorter schedule is supporting or straining your workflow.

When Shorter Weeks Improve Shop Productivity

Many shops see immediate gains. Techs arrive more rested. Workflow becomes steadier. Bays stay productive because teams work more intentionally. When people have predictable time off, burnout decreases and consistency increases. That combination raises both billed hours and shop morale.

Shops also notice that customer scheduling becomes more structured. When the shop controls the rhythm, rather than reacting to it, output stabilizes and quality improves.

Final Takeaway

A four-day workweek isn’t for every shop. But it’s far more realistic than most owners think. If your bays stay full, your team is strong, and your workflow has structure, a shorter week can create better output, better retention, and better work-life balance for your technicians.

The only way to know is to test it with real numbers. When the data tells the story, the decision becomes obvious.

Related Resources

How a Labor Matrix Boosts Your Auto Repair Shop's Profitability

Auto Repair Shop Accounting: 10 Tips to Stop Hidden Profit Leaks

6 KPIs Every Auto Repair Shop Owner Should Track for Profitability

How Often Should You Measure KPIs for Profit and Productivity? (video)

What Your Accounting Firm Does Every Month: Reports, Reviews, & Insights

If your accountant doesn’t understand auto repair shops, valuable opportunities get overlooked. At Kaizen, you get monthly financials you can trust and a team that knows the industry. With solid numbers and industry expertise behind you, decisions come easier.