Your Body Shop Said One Week. Here’s Where the Extra Days Actually Go.

The estimate said a week. Day eight, the car is still on our lot with its bumper off, and the customer calls to ask whether something went wrong. Usually nothing did. What happened is that the number on the first estimate was a guess about a car nobody had taken apart yet, and the days that got added have mostly nothing to do with how hard anyone is working.

If you are in the middle of this right now, or about to be, here is where repair time actually goes, how long jobs typically run, and what you are entitled to know when the schedule slips.

How Long Collision Repair Usually Takes

Any single number is misleading, because a scuffed bumper cover and a hit that bent a rail are different animals. The best industry figures come from CCC, the estimating software company whose data most insurers and shops work from. Its Q3 2025 Crash Course report, as covered by Claims Journal, found that repairs needing no calibrations averaged about 13 days from the day the car came in to the day it left. Repairs with one calibration averaged 15.5 days, and repairs with several ran past 17.

Those are door-to-door days, not working days, and that difference matters. Here is how the jobs we see tend to sort out in practice, as typical ranges and not promises:

• Minor cosmetic damage (a bumper cover scrape, one repainted panel): often 3 to 5 days, if parts and paint go smoothly.
• Moderate damage (two or three panels, a replaced bumper, sensors involved): usually 1 to 3 weeks.
• Structural damage (frame or unibody pulls, airbags, multiple systems): 3 weeks is common, and 6 or more happens when parts are scarce.

CCC also noted, in coverage of its Q2 2025 report by Autobody News, that overall repair days were down about two days from their peak but still four to five days above 2020 levels, and it pointed to supplement handling and technician shortages as possible reasons. So if repairs feel slower than they used to, they are.

Where the Days Actually Go

In our experience, on a typical job the car is under a technician’s hands for only part of the days it spends with us. The rest is waiting. These are the four places the waiting happens.

Teardown Finds What the Photos Couldn’t

An estimate written from photos or a quick walk-around prices what is visible. The real list gets written when the bumper cover comes off and we can see the foam absorber behind it crushed flat, a bracket with two broken tabs, or a headlight mount that sits a quarter inch out of place. A wiring connector snapped inside the fender is a classic one. None of that shows from the outside, and none of it was on the first estimate.

This is why our collision repair estimates are written as a starting point, and why we would rather document hidden damage than paint over it. The cost is that the schedule has to be rebuilt once the real list exists.

Parts Arrive on Their Own Schedule

Once teardown is done, most of the replacement parts get ordered, and they do not all show up together. A part that is listed as available can arrive scuffed from shipping, missing its hardware, or for the wrong trim. We check every part against the repair plan before it goes on the car, and a bad one means reordering and starting that wait again.

Large panels such as hoods, fenders and quarter panels tend to take longer to arrive than small clips and brackets, and newer or imported vehicles are the most likely to hit a backorder. Substituting a different part to save time can cost more time than it saves, because a part that does not fit gets found out at the worst moment, after paint. If you want the full story on part types and what it means for timing, we cover it on our OEM parts page, and in our breakdown of used OEM, new OEM and aftermarket.

Scans, Calibrations, and Work That Leaves the Building

A modern car has cameras and radar units in the bumpers, windshield and mirrors, and after certain repairs those sensors have to be scanned and sometimes recalibrated. CCC’s 2026 Crash Course report put calibrations on 28.3% of repairable appraisals in 2025, up from 21.8% the year before. Every one of those is a step that has to be scheduled.

Some of that work, and some mechanical or glass work, is done by an outside specialist instead of the shop itself. California rules require a shop to state any sublet repair with the estimate and to give you the name and location of the outside facility if you ask. Asking tells you whether your car is going to spend a day on a trailer.

Paint Has a Clock You Can’t Rush

Refinishing runs in stages: prep and priming, base coat, clear coat, then curing, and only after that polishing and reassembly. If a neighboring panel needs to be blended so the color matches in daylight, that is more painting and more drying, which we explained in why a repaired panel can look off. Pushing a car out of the booth early is how you get solvent pop, the tiny blisters that show up when solvents are trapped under a surface that cured too fast. We would rather lose a day than redo a hood.

Why a Supplement Stops the Clock

When teardown turns up damage that was not on the first estimate, the shop writes a supplement, a revised estimate that adds the new parts and labor. If an insurance company is paying, someone there has to review and approve it before we can order the additional parts. In our experience that approval can take a couple of days, and on a busy week it can take longer than a week.

CCC’s 2021 Crash Course, as reported by Repairer Driven News, put supplements on 60.9% of claims in its 2020 data. That is an older figure, but it makes the point: a supplement is the normal path, not a sign your shop missed something. The single best thing you can do is ask your adjuster for a status the same day a supplement is sent. We also walked through how a first estimate and a later insurance check relate in what to do with the insurance check.

What the Shop Has to Tell You Before It Charges More

Extra Work Needs Your Approval First

California Bureau of Automotive Repair regulations draw a clear line here. Under 16 CCR 3354, before a shop does additional repair or lets charges climb past the original authorized price, it must give you an estimate describing all additional parts and labor, with their costs and a total revised cost, and then get your authorization and record it. In plain terms, a repair cannot quietly grow.

Insurance Approval Is Partly Your Phone Call

There is a second rule that catches people off guard. When an insurer is paying and the approved amount is not yet known, 16 CCR 3353 has the estimate carry a notice that it is the customer’s responsibility to contact the third-party payor for approval of the repairs. So if your shop calls to say a supplement is waiting on approval, that is the moment to call the adjuster yourself.

Questions Worth Asking at Drop-Off and Again Midway

You do not need to be a car person to keep a repair moving. These are the questions that usually get a real answer:

1. What is the scheduled date based on, and what has to happen for it to hold?
2. Which parts are ordered, and what is the arrival date on each one?
3. Is any part of the work going to an outside shop, and for how long?
4. Does the car need a scan or calibration, and who does it?
5. If a supplement is sent, who is it going to, and when did they receive it?

A shop that can answer all five with specifics is working the schedule. A shop that answers every one of them with “we are waiting on parts” probably has not looked.

When a Delay Is Normal, and When It Isn’t

We think most delays are legitimate. A backordered fender, a supplement in an adjuster’s queue, a sensor that has to go out for calibration: those add days, and you can usually see the cause if you ask. What is not normal is a car that sits for a week while no one can tell you what it is waiting on. That is a communication failure, and it is fair to say so.

If the repair is running past what your rental coverage allows, the next step is to know your own policy’s daily cap and the at-fault insurer’s separate obligations. We laid that out in what happens when rental coverage runs out first.

Quick Answers About Repair Timelines