Zero on the invoice does not mean zero cost. Every warranty revisit and goodwill callback still burns travel, labor, truck miles, and a dispatch slot that could have been a paying job. Shops that never cost these visits underprice the original work and never fix the process that caused the return.
Cost every callback like a real job
Log revenue at $0 (or parts only) and still enter hours, miles, and overhead. Tag the parent job. Over a month you will see which techs, job types, or manufacturers drive the bleed — and how much original-job margin was fiction.
Sort causes, not just count visits
- Training / skill — coaching and ride-alongs; temporary cost of growth.
- Process failure — wrong part, rushed diagnosis, skipped test; fix the checklist.
- Customer misuse / expectations — clearer handoff and written limits.
- True product warranty — manufacturer parts; your labor policy should be explicit in the original sale.
Protect margin without looking cheap
- Price original jobs with an expected callback rate baked into the service line (e.g. 5% of tickets get a free revisit).
- Offer labor warranties that are time-bounded and documented — not open-ended "we'll take care of you."
- Charge for out-of-scope returns politely and early; do not surprise them at the door.
When free is still the right call
A clear company mistake deserves a free fix and a review recovery plan. Just do not pretend it was free to the business. Track it, coach from it, and adjust pricing if a line's callback rate stays high.
See what a $0 revisit really costs
Enter a callback with $0 revenue in the free calculator to reveal the labor and travel hit.