What does a bad hire actually cost a trades business?
The real, cited cost of a bad plumbing or HVAC hire — from the Department of Labor's 30% floor to the 50–250% all-in figure most owners never calculate.
By Jacob Crockett · CEO, HireAligned ·
The short answer.
A bad hire costs at least 30% of that person's first-year earnings, according to the U.S. Department of Labor — and once you add the indirect costs, most analyses land at 50–250% of salary. For a $60,000 HVAC tech, that's a range of roughly $18,000 on the low end to $150,000 when everything goes wrong.
Here's where that money actually goes.
The direct costs (the ones you can see)
- Recruiting and onboarding, twice. Job ads, screening time, paid training — all spent on someone you now have to replace and re-spend on.
- Wages for low or negative output. You paid full rate for work that was slow, wrong, or had to be redone.
- Separation costs. Final pay, admin time, and the disruption of an unplanned exit.
The indirect costs (the ones that actually hurt)
These rarely get measured, which is why owners underestimate the total:
- Botched jobs and callbacks. A bad install means warranty work, a return trip, and parts — on your dime.
- Customer reputation. One bad house call can cost referrals and reviews. In a business built on word-of-mouth, that's the most expensive line item of all.
- Senior tech drag. Your best people stop billing to babysit, correct, or redo the bad hire's work.
- Team morale. A weak or toxic hire makes your good techs work harder and trust you less.
Why the trades multiplier is so steep
In an office, a bad hire produces a bad spreadsheet. In the trades, a bad hire produces an angry customer, a leaking pipe, and a one-star review with your company name on it. The work is customer-facing and physical, so mistakes are visible, expensive, and public.
How to avoid paying it
The cost of a bad hire is really the cost of hiring in a hurry from a thin pool. The fix is structural: screen for fit before you're desperate, and always have a bench so you never have to say yes to the only warm body who applied. That's the entire premise behind how we hire for plumbing and HVAC businesses — pre-screened, culture-fit techs ready before the seat opens, so the 30% floor never becomes the 250% ceiling.
Frequently asked questions
How much does a bad hire cost?+
The U.S. Department of Labor estimates a bad hire costs at least 30% of that employee's first-year earnings. SHRM and other analyses put the fully-loaded figure at 50–250% of salary once lost productivity, supervisor time, and re-hiring are included.
Why is a bad hire more expensive in the trades?+
A bad field tech doesn't just cost wages — they cost botched jobs, callbacks, warranty work, a damaged customer relationship, and the senior tech's time spent supervising or redoing work. Those indirect costs often dwarf the salary.
What's the single biggest hidden cost of a bad hire?+
Customer reputation. In the trades, one bad install or rude house call can cost referrals and reviews worth far more than the hire's salary — and that damage doesn't show up on any payroll report.