Hidden crash damage and the revised repair estimate
A collision repair appraiser explains supplements
The first estimate usually covers damage you can see before the vehicle is taken apart. Once a bumper, trim or another part comes off, more damage can turn up. The shop may then write a supplement. A supplement adds or changes repair steps and costs. It’s a normal part of some repairs. Even so, each one should be explained and put in writing. [1, 2]
Find out what the shop discovered
Ask for photos, the updated estimate and a plain explanation of each added repair. Ask which items are directly tied to the crash. Also ask which, if any, were already there before it. [1, 2]
The repair shop should check the vehicle maker’s procedures. A new part may change whether scans, calibration or structural measurements are needed. It may also change whether work has to be sent out to another business. [1, 2]
Sort out approval and timing
Ask if the insurer needs to inspect or approve the added work. Find out whether you need to sign a new authorization. Confirm who pays any difference under your policy or claim. A supplement may hold up parts orders or push back the promised finish date. [1, 2]
The total cost may climb high enough for the insurer to look again at whether the vehicle is a total loss. Get that decision in writing. [1, 2]
Go over the final paperwork
Compare the first estimate, any supplements and the final invoice. Ask the shop to point out what was repaired, replaced, scanned or calibrated. Keep copies in your claim file. If a new problem shows up after you pick up the car, report it promptly. Point to the documented repair plan when you do. [1, 2]
Questions for the shop and the insurer
- What new damage turned up, and where are the photos?
- Has the added work been approved?
- Does the new cost change the finish date or the total loss decision?
See the supplement before you say yes
Ask to see the supplement before you agree to any added work. [1]
Sources and further reading
Take this as general education from a collision repair appraiser’s viewpoint. Insurance steps and consumer rights differ by policy and by place. Check your local rules and read your written repair authorization.
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