Quick answer: Every body shop estimate has 5 blocks: parts (with source codes for OEM, aftermarket, or recycled), labor (broken into body, refinish, and mechanical hours), paint and materials, sublet work (alignment, ADAS calibration, glass), and sundries plus fees. Compare two estimates line by line, watch for inflated labor hours and missing ADAS calibration on 2018+ vehicles, and ask for OEM on warranty-eligible cars.
A body shop estimate is one of those documents that looks like a phone bill. Five pages, a wall of acronyms, and a bottom line that either makes you flinch or makes you suspicious. Most drivers either sign without reading or assume the highest number wins. Neither is right.
We write estimates every day. They're not magic. They follow a pattern, and once you know the pattern, you can read any shop's quote in about three minutes and know whether it's honest. This post walks through that pattern, line by line, using a real example you can compare against your own estimate.
What an estimate actually contains
A standard collision estimate has five blocks. Every shop in the US uses some version of this format because the major estimating software (CCC ONE, Mitchell, Audatex) all output the same buckets.
- Vehicle and damage description. Year, make, model, VIN, mileage, and a list of which panels are affected.
- Parts. Every replacement part with a line number, description, source (OEM, aftermarket, or salvage), and price.
- Labor. Hours per operation, billed at the shop's door rate. Three labor types: body, refinish (paint), and mechanical.
- Paint and materials. The consumables that go with the paint job: primer, clear coat, masking tape, sandpaper. Usually billed at $35 to $50 per refinish hour.
- Sublet, sundries, and miscellaneous. Anything farmed out (wheel alignment, glass, ADAS recalibration) plus shop fees and supplies.
Most estimates also have a section for prior damage (so the insurer doesn't pay for what was already there) and a customer acknowledgment signature line at the bottom.
Block 1: parts, the line where shops differ most
Every part has a source code. Read these carefully because this is where two shops quoting the same job can vary by hundreds of dollars.
- OEM (Original Equipment Manufacturer). Made by the car's manufacturer, shipped in the same box as the factory-original part. Most expensive but guaranteed fit and finish, required by most automaker warranties on newer vehicles.
- A/M or AM (Aftermarket). Third-party manufacturers. 20 to 60 percent cheaper than OEM. Quality varies by brand. Fits most older or non-luxury cars without issue. Avoid on cars with bumper-mounted ADAS sensors, fitment tolerances are tighter there.
- LKQ or RECY (Recycled). Salvage yard pulls. Half the price of OEM. Fine for non-structural panels on older vehicles. Insurers love these. Customers should ask whether the shop inspected the part before quoting.
- REM (Remanufactured). Used part rebuilt to spec. Common for headlights and tail lamp assemblies. Usually fine.
If your estimate is 100% OEM and the car is more than 5 years old, ask why. If it's 100% aftermarket and the car is a 2023 with radar in the bumper, push back. The right mix depends on the car and the panel.
Block 2: labor, where shop economics show up
Labor is billed in tenths of an hour at the shop's door rate. National averages run $52 to $75 per hour for body labor, $58 to $82 for refinish, and $95 to $135 for mechanical. Tristate metro shops (NY, NJ, CT) usually sit at the top of those ranges. Specialty aluminum-certified shops bill 1.5x to 2x.
Hours per operation come from the estimating software's built-in database. A front bumper R&R (remove and replace) is 1.7 hours. A door skin is 5.8. A quarter panel is 12 to 18. If a shop's hours are dramatically higher than what your second estimate shows for the same operation, ask for justification. Hidden damage is a legitimate reason. Padding hours is not.
Watch for the word blend in refinish lines. Blending paint into adjacent panels (for color match) is a real operation, but some shops double-bill it as a full refinish. A blend is roughly 50% of a full panel refinish.
Block 3: paint and materials
This is the easiest block to inflate and the hardest for a customer to verify. The shop charges a paint and materials rate (usually $35 to $50 per refinish hour) on top of the refinish labor.
A reasonable estimate for one panel respray on a single-stage paint job is $150 to $250 in materials. For tricolor or pearl finishes on a luxury car, that can double. If the materials line is more than 30% of the refinish labor cost, that's a flag worth asking about.
Block 4: sublet work, the modern surprise
Sublet means the shop pays another vendor to perform part of the repair. The most common entries:
- Wheel alignment. $100 to $180. Necessary after any frame or suspension work.
- ADAS recalibration. $200 to $600 per system. Cars built after 2018 with radar, cameras, or LIDAR almost always need this after a front-end collision. Two flavors: static (in-shop with a fixture) and dynamic (a road test with a calibration tool).
- Glass replacement. Windshield is $300 to $800. Side glass varies wildly with frame condition.
- Suspension or steering work. Sublet to a mechanical shop if your collision shop isn't equipped.
ADAS recalibration is the biggest hidden cost on modern estimates. Many cheaper shops skip it to come in low on the quote, then bill you for it after the fact, or worse, return the car uncalibrated and let you discover the lane-keep assist doesn't work three weeks later. Always ask whether ADAS calibration is included.
Block 5: sundries, fees, and the final line
Sundries are the small consumables (rags, gloves, masking film, adhesive) that aren't in paint and materials. Reasonable line: $30 to $80 total. If it's higher, ask.
Watch for these add-ons that some shops slip in:
- Hazardous waste fee. $5 to $20, legitimate.
- Shop supplies fee. Usually a percentage. Some states require it itemized. If it's more than 5% of total labor, ask what's in it.
- Storage fee. $30 to $75 per day. Only legitimate if the car sat at the shop waiting for parts or insurance authorization beyond a reasonable window.
- Diagnostic or teardown fee. $100 to $300, charged when the shop has to disassemble to find hidden damage. Normal on moderate to severe damage.
Red flags to push back on
- All labor hours significantly higher than the estimator software's default. Software hours are negotiated industry standards. Padding them is the most common abuse.
- OEM parts on every line for a 10-year-old non-luxury car. Reasonable shops mix OEM (for safety-critical parts) with aftermarket or recycled (for cosmetic panels).
- ADAS recalibration missing from a 2018+ vehicle with front-end damage. This is not optional and ignoring it can fail a state inspection.
- A “corrosion protection” line at $200+ on a panel replacement. Most modern parts come e-coated from the factory. This charge is usually $40 to $80 max if needed at all.
- Vague entries like “miscellaneous body work, 4 hours.” Every line should describe a specific operation on a specific panel.
How to compare two estimates
Get two estimates from licensed shops. Lay them side by side. Walk through line by line and ask three questions for each difference:
- Are the source codes the same? (OEM vs aftermarket vs recycled)
- Are the hours per operation the same? Differences over 0.5 hour need a reason.
- Is the operation list the same? One shop might include ADAS calibration that the other forgot.
A 10 to 25 percent variance between two reputable shops is normal. A 40 percent variance means one of them is wrong. Get a third opinion before you sign anything.
Use the calculator before any shop visit
Our car repair cost estimator gives you a defensible range with parts, labor, and paint as separate line items. Walking into a shop knowing roughly what the job should cost changes how the conversation goes.
Once you have a written estimate, you can also check whether the repair will impact your resale value with the diminished value calculator, and use the insurance claim readiness checker if you're still deciding whether to file at all.
Want a second opinion on an estimate you already have? Email a photo of the estimate to our shop and we'll mark up the line items that look off, free. Send it through the contact form or call dispatch.
The bottom line
A body shop estimate is just a structured list of decisions. Parts source, labor hours, paint materials, sublet work, and fees. Every line is negotiable, every line should have a reason, and every line should be defensible against a second opinion. The shops that stand behind their numbers welcome the conversation. The ones that inflate hope you won't ask.
If you're reading an estimate right now and something feels off, trust that instinct. Run the numbers through the calculator, get a second quote, and don't sign anything until the parts and labor lines hold up to questions.
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