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Due diligenceExpert answer · 1 min read

How can I tell if a phone repair shop’s repeat repair claims are hurting margins?

Pull the repair tickets and count how many jobs came back for the same fault. Then add up the parts, labour time and refunds those repeat jobs cost, and compare that cost with the shop’s profit on the original work.

A repeat repair costs more than the part. The technician’s time, the second diagnosis, the customer’s patience and sometimes a refund all come out of the same job. Ask the owner whether the shop tracks warranty returns at all. If there is no record, the cost is probably being absorbed without anyone seeing it.

Go to the tickets. Look for repeat visits on the same device within the warranty window, and see whether they cluster around a certain part, a certain technician or a certain supplier. A pattern points to a cause you can fix. Scattered cases suggest normal variation.

Then look at the books. Is the cost of redoing work shown separately, or buried in parts expense or wages? Ask how refunds and free replacements are recorded. If the shop discounts to keep customers happy, check that too. Compare the margin on a typical repair with and without these costs. Your accountant can help you see whether the operating profit shown is the true figure. Finally, ask what the shop’s warranty promises, and whether it has changed. Ask staff what customers complain about most. They often know before the records do.

Key takeaways

  • Count repeat jobs on the same device and fault from the repair tickets.
  • Look for clusters by part, supplier or technician to find the cause.
  • Check whether redo costs and refunds are recorded separately or hidden in other lines.

Sources

This answer is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Business Development Bank of CanadaGovernment
    What is the operating profit margin?
    bdc.ca·Checked Oct 25, 2026
  2. 02
    Business Development Bank of CanadaGovernment
    What are financial statements?
    bdc.ca·Checked Oct 24, 2026
  3. 03
    Business Development Bank of CanadaGovernment
    How to conduct due diligence when buying a business
    bdc.ca·Checked Oct 21, 2026

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