Technician Shortage: Why a $60,000 Vacancy Beats a Slow Bay
The last shop I trained at lost a brake-and-suspension tech in March and didn't backfill until July. The owner kept telling customers "we're a little short-staffed" like it was a weather delay. It wasn't. It was four months of an empty bay, deferred jobs walking next door, and the two remaining techs eating overtime until one of them started looking too. By the time he found a replacement, the math had stopped being about a payroll line and started being about whether the location still had a viable book of work.
Dan Marinucci's recent sales-advice column in *Tire Business* ran alongside the news roundup every shop owner is reading this season. The U.S. Aftermarket is forecast to grow in 2026, the average vehicle on the road is now around 13 years old, Giti was named fastest-growing tire brand, Michelin is still the most valuable, Hankook is ramping a Tennessee plant, and Les Schwab cut 70 headquarters jobs in Bend while still planning to add new shops.
Read together, those headlines say the demand is there. What they don't say, and what the column is really about, is that demand you can't service is just churn waiting to happen. The constraint in this business stopped being cars in the lot. It's hands in the bay.
I'll take a position the cheerful forecasts won't: in 2026 the shops that win aren't the ones that chase the aging-fleet wave hardest. They're the ones that protect the techs they already have and sell around the skills they don't.
The Real Cost of an Empty Bay Isn't the Salary You Saved
The figure I keep coming back to comes from the industry research this column sits next to: a single technician vacancy costs the average shop roughly $60,000 a month in lost revenue. Know what that number is before you lean on it. It's a secondary estimate, never a line on anyone's P&L, so treat it as an order of magnitude rather than gospel. The order of magnitude is right, and any owner who's run short-handed knows it in their gut.
That money doesn't vanish in one place. It leaks through several at once, and the leaks feed each other:
| Where the loss shows up | The immediate hit | The second-order damage |
|---|---|---|
| Unfilled bay hours | Labor you simply can't bill | Complex, high-margin jobs get turned away or deferred |
| Overtime on the crew you kept | Margin erosion on every remaining ticket | Burnout pushes your next resignation closer |
| Slipped appointments | Customers wait, then leave | Reviews and word-of-mouth turn against you locally |
Here's the part owners miss when they "save" a salary by not rehiring fast: the $60,000 isn't the cost of the open seat. It's the cost of the work the rest of your bay can no longer reach because they're covering for it. Cutting labor cost by carrying a vacancy is the most expensive saving in the shop.
So my first rule for the year is unglamorous. Retention is cheaper than recruitment, and recruitment is cheaper than the revenue hole. Spend on the tech you have before you spend on the ad to replace the one who quit.
Sell What Your Bay Can Actually Do, Not the Trade-Press Wish List
The trade headlines push everyone toward the same shiny pivot: ADAS calibration, EV service, high-voltage work. The growth is real on paper. The readiness is not. The same research roundup puts EV maintenance proficiency at about 3% of technicians, and battery-qualified techs below 10%. On the vehicle side, advanced driver-assistance systems are spreading fast: roughly 38% of vehicles in operation carried ADAS in 2025, projected toward 71% by 2035.
Read that 38% carefully, because the live version of this article got it wrong and it matters. That figure is an *adoption* baseline. It counts how many cars on the road are equipped, and it says nothing about how many of them need a calibration repair today. Equipped does not put a car in your bay for service. Confusing the two is how a shop talks itself into buying a calibration rig that sits idle.
Match what you sell to what you can deliver without a comeback. That's where the real margin lives right now, and most of it is on the combustion fleet that's actually aging into your bay:
- Sell the work the aging fleet is bringing you today. A 13-year-old vehicle needs brakes, steering and suspension, filtration, cooling, drivetrain service. That's bread-and-butter undercar work your existing techs already do well. The press releases skip it because it's old hat, yet it's the volume the fleet-aging trend is genuinely handing you.
- Add electronic services at the pace you can certify. ADAS calibration and EV service are coming. Bring them in when you have a tech trained and equipped to do them right. A chart claiming the demand exists somewhere in the parc is no reason to staff for it early.
- Don't promise a repair you can't certify. Selling a complex electronic job into a bay without the qualified hands and the tooling doesn't generate revenue. It generates liability and a vehicle you can't hand back.
One grounded industry theme worth flagging here: MEMA continues pushing for equitable vehicle-data access so independents can compete with dealers on these electronic systems. That fight is real and it's strategic for every shop planning an ADAS or EV pivot. The data access is part of the readiness, and you treat it as one, never as an afterthought.
A Pre-Promise Checklist Before You Take the Complex Job
Most of the damage I've watched happen wasn't from refusing work. It was from accepting work the bay couldn't finish cleanly. Before a service writer promises a calibration, an EV battery job, or any advanced electronic repair, walk it through these four checks. If any one of them comes back "no," schedule the job for when you can do it right or refer it out. Taking the deposit and hoping is how you end up with a held vehicle and a comeback.
- Qualified hands. Do you have a tech certified for this exact job, beyond simply being willing to give it a shot? Skip this and you're risking a botched repair, a safety exposure, and a comeback that lands back on your ticket.
- The right tooling. Do you own the calibration target, scan capability, or HV isolation gear this work demands? Without it you produce incomplete or unverifiable work you can't stand behind.
- Data access. Can you reach the OEM service information and tool authorization this job requires? If you can't, you'll open the job and stall halfway through.
- Turnaround you can keep. Can you finish it inside the window you're about to promise? Overcommit and you've got a held vehicle, an angry customer, and a bay tied up.
Call it bureaucracy if you want. It's really the gap between running a profitable specialty service and selling a job twice while getting paid for it once.
What the Les Schwab Story Actually Teaches
Les Schwab cutting 70 jobs at its Bend headquarters while still adding shops looks contradictory in a headline. On the ground it's coherent, and it's the same point I'm making at a corporate scale: they trimmed back-office overhead and kept investing in the customer-facing footprint, the stores, where the techs and the trust live. The supplement pegs individual Les Schwab stores at roughly $3.5 million in average annual sales, well above the independent-retailer norm. The value sits at the counter and in the bay, well away from the HQ org chart.
There's a strategic split worth watching in the same news cycle: AutoZone leaning into centralized "Mega-Hub" distribution for parts availability, while Les Schwab holds a traditional store-level model built on local relationships. Both are bets on where the customer relationship gets won. For a shop owner, the lesson has nothing to do with which giant is right. Whatever you cut, leave the people doing the actual work alone.
About
I'm Ray Donnelly, Master Automotive Technician and Aftermarket Parts Authority at KZMALL Auto Parts. I'm ASE Master certified (A1–A9) with L1 Advanced Engine Performance, and I've spent 22 years working from the repair bay through owning my own independent shop and into parts and technical training. I write the "right part, first time" material, covering fitment, quality tiers, and comeback prevention, for shops and counter pros. I've lived the vacancy math in this article: at my own shop, fitment discipline and keeping good techs cut our warranty comebacks by about 30%, and a comeback is just a slower, angrier version of an empty bay.
KZMALL is a global B2B aftermarket distributor built on standardized ACES/PIES fitment data, carrying 50,000+ SKUs across passenger, SUV, and commercial applications so a short-handed shop can order once and get the right part the first time. Reach the desk via [contact](/contact) or browse the catalog and fitment tools on the [about](/about) page.
Conclusion
The forecasts say demand. The bay says capacity. In 2026 those two are not the same thing, and pretending they are is how a growing shop quietly bleeds margin. A vacancy you leave open to "save" a salary is the most expensive line in the building. The complex electronic work the trade press is excited about is real, but it pays only when you can certify the hands, own the tooling, and reach the data before you take the job.
Here's your move before the next slow week eats your margin. Rank your crew by who you can least afford to lose, then put a retention dollar against the top two names this month, ahead of any recruiting ad. Audit your last 30 days of declined and deferred jobs and total the undercar work, the brakes and suspension and filtration, that walked out unbilled, because that's the volume already rolling toward your door. Before you sign off on any calibration rig or HV tooling, name the certified tech who will run it. Do those three things and you grow on the capacity you actually have, with a crew still on the floor to install the part.
Original reporting: Expert sales advice for auto service pros, Dan Marinucci, *Tire Business*.
Frequently Asked Questions
Industry research cited alongside this column estimates roughly $60,000 a month in lost revenue per vacancy. Treat it as an order of magnitude, not a line item. The bigger point holds: the cost isn't the unpaid salary, it's the high-margin work your remaining crew can't reach while covering the gap.
No, and this is a common misread. The 38% is an adoption baseline for 2025 - how many vehicles on the road are equipped with ADAS, projected toward 71% by 2035. It is not a count of vehicles needing a calibration today. Equipped is not the same as in your bay for service.
Invest at the pace you can certify, not the pace the chart wants. Only about 3% of technicians are EV-proficient and under 10% are battery-qualified, so the bottleneck is trained hands, not customer demand. Bring in electronic services when you have a tech and the tooling to do them without a comeback.
On the aging combustion fleet already rolling in. The average vehicle is around 13 years old and needs brakes, suspension, filtration, cooling, and drivetrain work your existing techs do well. It's not in the press releases, but it's the real volume - and retaining the techs who do it beats chasing services you can't yet staff.
They trimmed back-office overhead and kept investing in the customer-facing footprint, where the techs and trust live. With stores averaging about $3.5 million in yearly sales, the value sits at the counter and in the bay, not the org chart. Whatever you cut, don't cut the people doing the actual work.
