Does an Insurance Company Have the Right to Choose a Lump-Sum Repair for the Customer’s Car?

The answer is “Yes” But not at the expense of the customer’s rights.

When a car accident happens, many insured drivers feel reassured knowing that their insurance company will handle the repair costs. However, what most policyholders don’t realize is that insurance companies can manage car repairs in several ways. One common practice is “lump-sum repair” or “contracted repair,” where the insurer negotiates a fixed amount with a repair shop. This often leads to dissatisfaction among customers who feel their cars were “not restored to their original condition” or “poorly repaired.”

So, does an insurance company have the right to do this?
Legally, yes, they do but that right must remain within reasonable limits and must not cause harm to the insured party. The goal of repairing the customer’s car should be to restore it to its original condition, not to cut costs for the company’s own benefit.

Understanding “Lump-Sum Repairs” in the Insurance Industry

A “lump-sum repair” means the insurer estimates the total repair cost and agrees on a fixed price with a repair shop or service center often without consulting the customer. For example, if your car sustains 40,000 baht in damages, the company might strike a deal with a garage for that amount, leaving you out of the decision-making process.

While this may sound reasonable from a business perspective  as insurers must control costs in practice, this often leads to cost-cutting repairs rather than quality restoration.

Common problems include:

• Incomplete or substandard repairs
• Use of second-hand or non-genuine parts
• Paintwork that doesn’t match the original
• Or worst of all recurring issues requiring multiple repair attempts

Even though insurers have the right to choose lump-sum repairs, they do not have the right to infringe upon the customer’s legal rights.

The Customer’s Legal Right: “Restoration to the Original Condition”

Under motor insurance principles, repairs after an accident must restore the vehicle to its pre-accident condition.
 That means your car should be as close as possible to its original state in terms of structure, paint quality, safety, and functionality.

If an insurer’s chosen repair method worsens the car’s condition or reduces its quality, that could amount to a “tortious act.”
 An insurer cannot act in bad faith under the contract to the detriment of the insured.

Legally, even though the insurer is a contracting party, this doesn’t grant them unlimited authority over your vehicle.
Customers are entitled to fair, quality repairs that return their property to its original state. Acting solely for the company’s financial gain is not legally justifiable.

Lawyer Arm’s View: “Yes, They Can  But Not at the Customer’s Expense”

Lawyer Arm explains:

“The insurer may have the right to choose lump-sum repairs, but they have no right to cause the customer further harm.”

The insurer’s right to manage operations is protected by law, but it must be exercised in good faith and responsibility  consistent with Section 420 of the Thai Civil and Commercial Code, which states:

“A person who, willfully or negligently, unlawfully injures another is bound to make compensation.”

If the insurer’s repair decision leads to further damage such as mismatched paint, reduced performance, or new mechanical issues that could constitute a tort.

Moreover, a car is not just a financial asset it directly relates to safety. Poor-quality repairs may not only devalue the car but could cause further accidents, making the insurer liable under civil or even criminal law.

Why Should You Consult a Lawyer from the Start?

When an accident occurs, and your car needs repair, the first thing you should do is ask for clarity upfront:
 Where will the repair take place? How will it be handled? Can you choose your preferred repair center?

If you let the insurer take full control of the repair without reviewing the terms, you might end up with a poorly repaired vehicle  and the struggle to demand compensation afterward can cost you both time and money.

Consulting a lawyer early ensures that you:

• Understand your rights under your insurance policy
• Know your options regarding repair types
• Can take legal action if the insurer breaches its obligations

The Insurer’s Right Exists But It Must Be Fair

Ultimately, insurers do have the right to manage repairs, including using lump-sum arrangements.
However, that right must never override the customer’s right to fair treatment.
The car must be restored as closely as possible to its original state, not just “patched up” to save the insurer money.

If you’ve been in an accident, don’t wait until problems arise to seek legal advice.
Consult a lawyer immediately. It’s the best way to protect your rights and ensure a fair outcome.

WongSakorn Law Office

Our team of experienced insurance and compensation lawyers can help you file and pursue insurance claims properly and effectively ensuring you receive the full amount you deserve and that your car is restored to its original condition without compromise.

Let us “restore your rights” just like restoring your car  properly, and completely.