Common misunderstandings in vehicle repairs

Why quotes may change

Initial repair estimates are based on visible damage. Once a vehicle is partially disassembled, repairers often discover additional damage that wasn't visible during the initial assessment.

This is normal and expected in collision repair. The repairer will typically request a "supplementary" assessment from the insurer before proceeding with additional work.

A changing quote doesn't mean the initial assessment was wrong — it means more information became available.

Assessment vs estimate

An assessment is performed by or on behalf of the insurer to determine the scope and cost of repairs. An estimate is a quote provided by the repairer.

These may differ because assessors and repairers use different systems, have different levels of access to the vehicle, or apply different repair methods.

• Assessments focus on what the insurer will authorise
• Estimates reflect what the repairer believes is needed
• Disagreements are resolved through negotiation

Repair timelines

Repair timelines depend on many factors beyond the repairer's control:

• Parts availability (especially for newer or imported vehicles)
• Insurer authorisation timing
• Supplementary assessment approvals
• Paint drying and curing requirements
• ADAS calibration scheduling

Delays are often outside the repairer's control. Asking for regular updates is reasonable, but rushing quality repairs can compromise safety.

New parts vs used parts

Insurance policies may allow or require the use of:

• OEM (new) parts: Made by or for the vehicle manufacturer
• Aftermarket parts: Made by third parties to fit the vehicle
• Used/salvage parts: Genuine parts from other vehicles

Check your policy wording. If you have concerns about parts quality, discuss this with your insurer before repairs begin.

"Approved repairer" meaning

When an insurer says a workshop is "approved," this means the workshop has a business relationship with the insurer. It does not necessarily indicate quality ranking compared to other workshops.

Similarly, a workshop that is not on an insurer's approved list may still be fully capable of performing high-quality repairs.

Authorisation requirements

Before repairs can proceed, the insurer typically needs to authorise the work. This authorisation confirms:

• The claim is valid and covered
• The proposed repair scope is agreed
• The costs are within acceptable limits

Repairers generally cannot begin work until authorisation is received, which may cause delays.