It's easy to quote a repair price based on gut feeling — but gut feeling doesn't account for the exact part used, its cost, or how that cost has changed since the last time you ordered it.
The fix is simple: keep a spare parts catalog with an accurate cost price for every part you stock, and record exactly which parts were used on every single job. Over time, this turns into real data instead of guesswork.
Once parts costs are recorded consistently, your profit reports become meaningful. You can see revenue, parts cost, and other business expenses side by side — and know your real profit margin on every job, not just an estimate.
This also makes it much easier to spot problems early: a part whose cost has crept up, a job type that's quietly losing you money, or a technician who consistently uses more expensive parts than necessary.
