After an accident, your car usually disappears from view for a while before anyone tells you what’s actually wrong with it. Someone called an “assessor” looks it over, and a few days later you get a verdict: repair, or write-off. It can feel like a bit of a black box.
Our assessor at Linwood Coachworks sees this confusion a lot. So we asked them to walk through what actually happens between your car arriving and that verdict landing in your inbox.
The first thing we check isn’t the dent
It’s tempting to assume an assessment is just someone looking at the visible damage and estimating a repair cost. It isn’t. The panel damage is often the easiest part to judge; it’s everything behind the panel that takes the time.
A hard knock to a bumper or wing can transfer force much further into the car than it looks from the outside, into the crash rails, the subframe, suspension mounts, even the alignment of the chassis itself. We check all of that before we even start pricing cosmetic work, because a repair estimate built only on what’s visible is a repair estimate that’s likely to be wrong.
How we decide between repair and write-off
This is the question everyone actually wants answered, and it comes down to a fairly simple comparison: the cost of a proper repair, against the car’s pre-accident value.
If a full, correct repair (parts, labour, paint, and putting right anything structural) comes in at or above a certain proportion of what the car was worth before the accident, an insurer will usually class it as uneconomical to repair rather than pay for the fix. That threshold is set by the insurer, not by us, and it varies by policy and by insurer.
What our assessment does is make sure that comparison is being made on accurate numbers. We’ve seen cars written off based on an inflated repair estimate that included work the car didn’t actually need, and we’ve seen the reverse too: a car repaired that probably shouldn’t have been, because someone missed structural damage. Getting an assessment from people who actually do the repairs, rather than someone who’s only ever seen the car on a screen, matters here.
Why your car’s systems matter as much as the metal
Modern cars aren’t just steel and paint. Most vehicles built in the last several years carry driver assistance systems, cameras, radar, parking sensors, that rely on being mounted and calibrated with real precision. A knock that moves a bumper or windscreen by even a few millimetres can be enough to throw a camera or sensor out of alignment.
That’s part of why our assessment doesn’t stop at bodywork. If your car has adaptive cruise control, lane assist, or a forward-facing camera behind the windscreen, any of that needs checking, and very often recalibrating, as part of a proper repair. Skipping that step doesn’t save time, it just means the car goes back on the road with safety systems that might not be doing what they’re supposed to.
What “uneconomical to repair” actually means for you
If your car is written off, it doesn’t necessarily mean it’s unsafe or undriveable in its current state; it means the insurer has decided the repair cost isn’t justified against the car’s value. That’s a financial decision, not always a safety one, and it can feel like a strange outcome when the car still looks mostly fine.
If you disagree with a write-off decision, you’re entitled to ask for the reasoning behind it, and in some cases to get an independent assessment. It’s worth asking rather than assuming the first number you’re given is final.
What happens after the assessment
Once the assessment’s finished, you’ll get a clear outcome: a repair going ahead (with a realistic timeline, since we don’t sign off on shortcuts), or a total loss figure to take to your insurer. Either way, you should be told why, not just what. If something in an assessment doesn’t make sense to you, ask; a good assessment should be able to explain itself.
Straightforward assessments, done by people who do the repairs
Because assessing damage is part of running our workshop, not a separate job for someone who’ll never see the car again, our assessments are grounded in what a repair actually involves, not a generic formula. If you’ve had an accident and want an honest read on your car before anything’s decided, bring it in, or send us photos, and we’ll give you a free, no-obligation assessment.
Frequently asked questions
Who decides if my car is a write-off, the garage or the insurer?
The insurer makes the final call, based on the assessment. A good assessment gives them accurate numbers to make that decision on, which is why it’s worth having it done properly rather than rushed.
Can I get a second opinion on a write-off decision?
Yes. You’re entitled to challenge a write-off decision and ask for an independent assessment if you think the first one got it wrong.
Does a written-off car mean it’s unsafe to drive?
Not necessarily. “Uneconomical to repair” is a cost-versus-value calculation, not automatically a statement about the car’s current safety. That said, a car that’s been in a serious accident should always be properly checked before being driven again regardless of the insurance outcome.
Do all repairs need ADAS recalibration?
No, it depends on what systems the car has and what was damaged or disturbed. Any car with cameras or sensors near the affected area should be checked as part of the assessment.
How long does an assessment take?
It depends on the extent of the damage, but straightforward assessments are often done within a day or two of the car arriving. More complex structural checks can take longer.