An auto repair estimate changed: organize the supplement

Questions covered in this guide

Separate discovery from approval

The Texas Department of Insurance explains that a shop can send a revised estimate when repairs cost more and that insurer agreement matters. A second estimate is therefore a new item to review, not automatic confirmation of payment. Ask the shop to show exactly what changed from the first version and why.

Make a line-by-line change record

Keep the original estimate and date every later version. For each added item, record the affected part or operation, the reason given, available photographs and the amount requested. Ask whether the new work was discovered during disassembly or changes an earlier assumption. Mark duplicated or unclear lines for explanation instead of combining every version into a larger total.

Identify who must answer each question

Use separate columns for the shop’s explanation, the insurer’s response and any amount still unresolved. Ask who will submit the supporting material and when a response is expected. Clarify repair authorization, storage arrangements and scheduling directly with the responsible parties. Do not assume that letting the insurer inspect the car also authorizes every repair or settles every contract term with the shop.

Keep the final scope traceable

Before treating the repair budget as settled, obtain the current written scope and the insurer’s payment explanation. Compare them with the repair agreement and ask about any remaining difference. Save invoices and completion records with the estimate history. The coverage tool can hold general policy questions, but it cannot determine whether a supplement is payable or whether a repair is technically adequate. If a dispute remains, use the preserved versions to ask a focused question about the specific item rather than restarting with only the latest total. Print your worksheet before leaving the page if you want to keep it.

Putting it into practice

A dated change record separates newly discovered work from duplicate lines and unanswered authorizations. The insurer response is kept distinct from the shop contract and the technical repair scope.

Sources and supported claims

TDI describes a shop submitting a new estimate when repair costs increase.
Source ↗ · state · Checked 2026-10-12

TDI says insurer agreement is needed for additional repair payment.
Source ↗ · state · Checked 2026-10-12