How to Read a Repair Estimate Before You Decide

Two estimates for the same repair can differ a lot because they use different parts. Neither is automatically wrong, but they are not the same thing.

• New from the maker

  Made for your model by or for the car’s manufacturer. Ask how long the warranty runs and whether it covers labor too.

• Aftermarket

  New, made by another company. Quality varies, so ask which brand and why the shop likes it.

• Remanufactured or rebuilt

  A used part restored to working condition. Ask who did the work and what was replaced in the process.

• Used

  Taken from another vehicle. Ask what vehicle it came from, its mileage if known, and what happens if it fails soon after it goes in.

On an old car, a used part can be a sensible choice. Just find out what happens if it fails. A cheap part with no warranty can mean paying for the same labor twice.

This is where most surprises come from. A shop may not know everything until the job is taken apart, and that is normal. But the estimate should tell you where the unknowns are. Look for these words:

• "Inspect" or "further diagnosis required." The price covers looking, not fixing. The cause may not be confirmed yet.
• "Teardown." The shop must take the engine or transmission apart to see inside. Ask what you owe if you decide against the repair after the teardown, and whether it will be put back together.
• "May need" or "recommended." Ask which items are needed to make the main repair work and which are just good ideas.
• "Estimate only." Ask how far the final bill could go above this before the shop has to call you.

Ask the shop to write "call me before going over this amount" on the work order, with the amount you agree on.

• What exactly failed, and how did you test it?
• Will this repair fix the symptom I came in with, or only one possible cause?
• What is the worst realistic case once you open it up?
• What is the next thing likely to fail on this car?
• Is any of this a safety issue? Which items would you fix first?
• What warranty comes with the parts and the labor, and can I have that in writing?
• May I have the old parts back or see them?
• If I decide not to do the repair, what do I owe today, and is the car being charged storage?

A second opinion helps most when the repair is large or the diagnosis is unclear. To make the two comparable, do this:

1. Ask for the first estimate in writing

   You may have paid for the diagnosis. Ask for the findings too, so the next shop can check them.

2. Describe the symptom to the next shop

   Tell them what the car is doing, and show them the first findings. Ask them to confirm the cause themselves.

3. Compare like with like

   Line up the same parts type, the same labor scope and the same warranty before you compare totals.

4. Tow it if it is unsafe

   If the car should not be driven, do not drive it to a second shop. Have it towed, or ask whether the second shop can look at the written findings first.

Then use the final number. It goes in line C of the comparison in our repair or junk guide, alongside what your car is worth.

Go ahead with more confidence when the cause has been tested, the scope is clear, the shop will call before adding work, and the total still makes sense next to the car’s value. A clear estimate from a shop that explains itself is a good sign, even when the number stings.

If the number does not make sense for this car, you can decline. A car that does not run can still be sold: we buy non-running cars with a free flatbed tow, and our offer depends on year and model, condition, demand for parts, weight and size, and towing distance. Ask for one before you decide.