Car repair estimates are often filled with confusing terms, labor hours, and line items. Here's how to understand what you're being quoted — and what actually matters.
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Labor hours are usually listed as "book time" — standardized estimates for how long a repair should take. This isn't clock time. A mechanic might complete a 2-hour job in 90 minutes, but you're still charged for 2 hours.
What's normal: Most shops charge $100–$180 per labor hour, depending on location and shop type (dealership vs independent).
Why they vary: Complex repairs (transmission, engine work) take longer. Simple jobs (oil change, brake pads) are quicker.
Red flag: If labor hours seem unusually high for a common repair, that's worth questioning.
If you don't want to interpret labor hours yourself, check your car repair estimate and we'll tell you if they're reasonable.
Parts make up a big chunk of most estimates. You'll see two main types: OEM (Original Equipment Manufacturer) and aftermarket.
OEM parts: Made by your car's manufacturer. More expensive, but guaranteed to fit and often come with better warranties.
Aftermarket parts: Made by third-party companies. Usually cheaper, quality can vary. Good for older cars or non-critical repairs.
Ask: "Are these OEM or aftermarket parts? What's the price difference if I choose the other option?"
Not sure if the parts pricing is fair? Check your car repair estimate and we'll compare it to typical market rates.
Many shops charge a diagnostic fee just to figure out what's wrong with your car. This is separate from the actual repair.
What's normal: $50–$150 for a basic diagnostic scan. More complex electrical or engine diagnostics can be $150–$250.
Sometimes waived: Some shops waive the diagnostic fee if you approve the repair with them.
Ask: "Is the diagnostic fee waived if I proceed with the repair?"
Want to know if your diagnostic fee is standard? Get your estimate analyzed for a breakdown.
You might see a line item for "shop supplies" or "shop fees." This covers things like rags, cleaning solvents, and other consumables used during your repair.
What's normal: Usually 5–10% of the parts and labor total, or a flat fee of $10–$50.
Sometimes included: Some shops bundle this into their labor rate instead of listing it separately.
Red flag: If shop supplies exceed 10% of the total, ask what's included and why it's so high.
Confused by all the fees? Upload your estimate and we'll explain each charge.
Not everything on your estimate needs to be done right now. Mechanics often include "recommended" repairs — things that aren't urgent but could prevent future problems.
Required (urgent): Safety issues like worn brake pads, leaking fluids, or failing steering components. These should be fixed now.
Recommended (can wait): Maintenance items like cabin air filters, engine air filters, or coolant flushes. These are good to do, but not urgent.
Ask: "Which of these repairs are safety concerns? What can wait until next time?"
Not sure what's urgent? Upload your estimate and we'll tell you what needs attention now vs later.
Every estimate is different. Understanding labor rates, parts markups, and urgency levels takes time and research. We do it for you in under 60 seconds.
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