In this guide you’ll learn:

• Whether to contact your insurer or the body shop first — and why the answer matters
• The exact step-by-step process to file an insurance claim with a body shop in 2026
• How to handle first-party vs. third-party claims differently
• What DRP (direct repair program) shops are and when to avoid them
• How supplements, parts disputes, and ADAS calibration work
• How payment flows — who pays the shop, when you owe your deductible, and more
• What to check before you sign off and drive away

You generally open the claim with your insurance company first, then bring the vehicle to the body shop. But in practice, many high-quality body shops will open the claim on your behalf if you give them your policy information — and that can be the easier path when you’re stressed and overwhelmed after an accident.

? Pro Tip: Whichever route you take, write down the claim number immediately. It’s the key that unlocks every subsequent step — from rental authorization to parts ordering to final payment. Without it, shops and adjusters can’t coordinate on your behalf.

Move to a safe location. If anyone is injured, call 911 immediately. Even if no one is hurt, call the police in most states — a police report creates an independent record of fault and damage.

Document everything on scene:

• Wide-angle photos of all four vehicles and their positions
• Close-up photos of every area of visible damage, paint transfer, and scratches
• Dashboard warning lights (photograph them before shutting off the vehicle)
• Road conditions, skid marks, traffic controls, and any contributing environmental factors
• Photos of the other driver’s license, registration, and insurance card
• Names and contact info of all witnesses

Request the police report number at the scene or ask how to obtain the report — body shops and adjusters frequently need it.

Call your insurer’s claims line, open the claim through their mobile app, or — if your body shop offers claims coordination — let them handle the opening call on your behalf. Either way, you’ll end up with:

• A claim number (write this down immediately)
• Your assigned claims adjuster’s name and direct number
• Confirmation of which coverages apply (collision, comprehensive, liability, rental)
• Rental car authorization if applicable

If you’re pursuing a third-party claim, call the at-fault driver’s insurer with the other driver’s policy number. Ask for their claims department, provide your documentation, and get a claim number from them as well.

Important: Don’t wait. Most insurers recommend reporting within 24–72 hours. Delayed reporting can complicate liability and rental coverage.

You have the legal right to choose any licensed body shop you want. Your insurer cannot force you to use a specific facility — though they can recommend shops in their Direct Repair Program (DRP) network.

What is a DRP (Direct Repair Program) shop?

DRP shops have negotiated agreements with insurers that streamline estimate approval, often meaning faster cycle times and simplified billing. However, some DRP agreements create financial pressure to use cheaper aftermarket parts or cut labor hours. DRP shops aren’t inherently bad — many are excellent — but the relationship means the shop also serves the insurer’s interests, not just yours.

What to look for in a body shop when filing an insurance claim

• Full vehicle blueprinting — complete teardown and damage mapping before the estimate is finalized
• OEM repair procedure access — the shop follows manufacturer-specified methods for your exact make and model
• Structural measurement systems — computerized frame alignment to factory tolerances
• ADAS calibration capability — on-site or partnered calibration for radar, cameras, and sensors
• Proactive communication — milestone updates, not silence until pickup day
• Written repair warranty — a shop that stands behind its work in writing
• Verified reviews — consistent, detailed positive feedback from recent customers

If you’re in Southern California’s North Orange County area, the team at Brea Auto Body specializes in insurance claim coordination and handles every step from claim opening to final delivery.

What most drivers don’t realize: the first estimate is almost never the final number. Outer panels like bumper covers, fenders, and doors routinely conceal damage to inner structure, wiring, sensors, and mounting points that simply can’t be seen without disassembly.

The blueprinting process explained

A quality shop “blueprints” your vehicle — fully disassembling the damaged areas before finalizing the estimate. This reveals:

• Structural and unibody damage hidden behind outer panels
• Damaged wiring harnesses, sensors, and brackets
• Airbag system components that may need replacement
• Required ADAS sensor repositioning or replacement
• Corrosion protection requirements specific to your repair

The shop submits this blueprinted estimate — along with supporting photos and OEM procedure documentation — to your insurer’s appraiser. Both parties align on repair operations, labor times, and parts before work begins.

Understanding parts: OEM vs. aftermarket vs. recycled (LKQ)

Your estimate will specify which type of parts are being used:

• OEM (Original Equipment Manufacturer) — made by or for your vehicle’s manufacturer. Best for safety systems, structural sections, and ADAS components. Some policies guarantee OEM parts; others only require them on newer vehicles (typically 2–3 years old).
• Aftermarket — third-party manufactured. Cost-effective for non-structural cosmetic parts, but quality varies. You have the right to request OEM instead (you may pay the price difference).
• Recycled / LKQ (Like Kind & Quality) — used parts from salvage vehicles. Acceptable for some cosmetic components but generally not appropriate for structural, airbag, or sensor-critical parts.

Always ask your shop to explain parts choices for any component that affects your vehicle’s safety systems, frame integrity, or collision-avoidance technology.

A supplement is an updated repair estimate submitted to your insurer when additional damage is discovered during the repair process. Supplements happen on the majority of collision repairs — they are not a red flag, and they should not surprise you.

Common reasons for supplements

• Hidden structural damage revealed during teardown
• Required replacement of sensors or brackets initially deemed repairable
• Pre-repair scan revealing fault codes that require additional work
• Parts back-ordered, requiring a substitution at a different price point
• Additional calibration steps identified during repair

How supplements are handled

The body shop submits the supplement to your insurer with photos and documentation. The adjuster reviews and approves (or negotiates). Your shop handles this communication — you typically don’t need to do anything except be informed. However, ask your shop to keep you in the loop each time a supplement is filed so you know what’s happening with your vehicle and your claim timeline.

Supplement approval is the most common cause of repair delays. A shop with strong insurer relationships typically gets faster supplement approvals, which keeps your cycle time shorter.

Rental car coverage: what to know

• First-party claim: You need rental coverage on your own policy (typically listed as “rental reimbursement”). Check your daily limit — many policies cover $30–$50/day, which may not cover current rental rates. You’ll pay the difference.
• Third-party claim: If the at-fault driver’s insurer accepts liability, they must provide a rental vehicle or reimbursement. The rental period continues until your vehicle is repaired or declared a total loss.
• Rental coordination: Many body shops will help you arrange the rental through your insurer’s preferred rental company directly — ask about this when you drop off your vehicle.

How long will repairs take?

Repair time varies significantly based on damage severity:

• Minor cosmetic repairs (bumper scuffs, single-panel dents): 2–5 business days once parts arrive
• Moderate collision damage (multiple panels, minor structure): 1–2 weeks
• Severe structural or ADAS-heavy repairs: 3–6 weeks, sometimes longer for specialty or back-ordered parts

Ask your shop for milestone updates at each phase:

1. Teardown / blueprinting complete
2. Initial estimate submitted to insurer
3. Supplement(s) approved
4. All parts received
5. Structural repair and panel work complete
6. Paint and refinish complete
7. Reassembly and mechanical check
8. Pre-delivery ADAS calibration and post-repair scan
9. Quality control and road test
10. Detailing and delivery ready

Modern vehicles are equipped with Advanced Driver Assistance Systems (ADAS) — cameras, radar, lidar sensors, and ultrasonic devices that power features like automatic emergency braking, lane-keep assist, blind-spot monitoring, and adaptive cruise control. Any collision — even a minor one — can knock these sensors out of alignment.

Why this matters for your insurance claim: Calibration is often the last step before delivery and a required one — but some shops skip it or don’t include it in their initial estimate. An uncalibrated forward-collision camera or blind-spot radar isn’t just a warranty issue. It’s a safety issue.

What to ask your shop:

• Was a pre-repair scan performed? What fault codes were found?
• Which ADAS systems were affected by this collision?
• Will calibration be performed on-site or at a dealer/partner facility?
• Will I receive a calibration certificate with the vehicle?
• Was a post-repair scan performed confirming all fault codes are cleared?

Your insurer is required to pay for necessary calibration — make sure your shop includes it in the estimate and the supplement if needed. Do not accept a vehicle without confirmation that all required calibrations were completed per the manufacturer’s OEM procedures.

Understanding exactly who pays what — and when — prevents unpleasant surprises at pickup.

First-party claim payment flow

1. Insurer approves final repair amount (including all supplements)
2. Insurer sends payment directly to the shop or issues a check to you (joint payee with lienholder if financed)
3. You pay your deductible directly to the shop at pickup
4. If you chose OEM upgrades your insurer won’t cover, you pay the difference
5. Shop releases the vehicle once all balances are settled

Third-party claim payment flow

1. At-fault driver’s insurer accepts liability and approves repair
2. Payment goes directly to the shop
3. No deductible owed by you — the at-fault party’s insurer covers 100% of approved repairs
4. If the at-fault insurer disputes any line items, your body shop negotiates on your behalf

What if the check comes to you (not directly to the shop)?

If your vehicle has a lender (auto loan or lease), insurance checks are often made out to both you and the lienholder. You’ll need to get the lienholder to endorse or process the check before forwarding payment to the shop. Your shop’s front office can walk you through this — it’s common, just slightly slower.

Betterment charges — what are they?

On older vehicles, insurers may apply a “betterment” charge — a deduction for wear-and-tear on parts being replaced with new ones. For example, if your 8-year-old tires are replaced due to damage from the collision, the insurer may only pay 40–60% of the cost, reasoning that new tires are an upgrade from your worn ones. This is legal and common; ask your shop to flag any betterment items in the estimate so you’re not surprised.

Before you sign anything, inspect your vehicle methodically. Don’t let excitement to get your car back rush a process that protects your investment.

Pickup inspection checklist

• Exterior panels: Even panel gaps on all repaired areas, no ripples or wavy surfaces in reflected light
• Paint match: Check in natural daylight — look for color match and texture consistency between repaired and adjacent panels
• Dashboard: No warning lights or fault codes illuminated
• Driver-assist features: Test lane-keep assist, forward collision warning, blind-spot monitor, and backup camera if applicable
• Structural feel: Doors open, close, and latch with factory resistance — not loose or stiff
• Corrosion protection: Ask for documentation that anti-corrosion treatment was applied to bare metal areas
• Post-repair scan report: Confirm all fault codes are cleared
• Calibration certificates: Receive written documentation of every ADAS calibration performed
• Repair warranty: Get a written warranty document that specifies what is covered and for how long
• Final invoice: Review every line item — it should match the approved estimate plus all approved supplements

If anything concerns you, say so before signing. A quality shop welcomes your scrutiny — it’s a sign they do the job right the first time.

? Smart Move: Get a written repair estimate from a trusted body shop first. Then call your insurer to ask about rate impact hypothetically — without actually filing — before you commit. Most insurers will answer this question honestly.

Should I go to the insurance company or the body shop first when filing a claim?

In most cases, contact your insurance company first to open a claim and receive a claim number. Then bring that number to your chosen body shop. However, many quality body shops offer to open the claim on your behalf — this is perfectly valid and can simplify the process when you’re stressed after a collision. Either way, the claim number is what the shop needs to coordinate with your adjuster on estimates, approvals, and payment.

Do I need multiple estimates when filing an insurance claim for body shop repairs?

No. You are generally not required to get multiple estimates. One thorough blueprinted estimate from a reputable shop — combined with complete documentation and photos — is sufficient. Getting multiple quick estimates can actually slow down the process and fail to capture hidden damage that only appears after disassembly. Choose the shop you trust and let them produce a complete repair plan.

Can my insurance company force me to use a specific body shop?

No. You have the legal right to choose any licensed collision repair facility. Your insurer may recommend shops in their Direct Repair Program (DRP) network — and those shops can offer convenience benefits like faster approvals — but the final choice is always yours. If an insurer representative implies otherwise, ask for that in writing; it’s not legally accurate in any U.S. state.

What is a supplement in a body shop insurance claim and why does it happen?

A supplement is an updated repair estimate submitted to your insurer when additional damage is discovered during teardown and repair. This is extremely common — collision damage visible from the outside rarely reflects everything that’s wrong underneath. Hidden structural damage, broken sensors, and damaged wiring harnesses are routine discoveries. Supplements are a sign the shop is doing the job right, not cutting corners. Your shop handles the supplement submission and negotiation with your insurer.

When do I pay my deductible when using a body shop for an insurance claim?

You pay your deductible directly to the body shop at vehicle pickup, not to your insurer. Your insurer pays the remaining approved repair amount directly to the shop. If it’s a third-party claim where the other driver is at fault and their insurer accepts liability, you typically owe no deductible at all.

Will filing an auto insurance claim raise my rates?

It depends on fault, your insurer, your state, and your claims history. Not-at-fault claims generally have minimal to no premium impact in most states. At-fault claims typically result in a premium increase at renewal — often 10–40%. Comprehensive claims (hail, flood, theft) usually have little to no impact. For minor damage close to your deductible amount, it may be worth paying out of pocket to avoid a rate increase. Get an estimate first, then ask your agent about impact before filing.

What if the insurance company declares my car a total loss?

If repair costs approach or exceed roughly 70–80% of your vehicle’s Actual Cash Value (varies by state), your insurer may declare a total loss. You’ll receive an ACV settlement offer. You can negotiate this using comparable vehicle listings in your area. If you have GAP insurance on a financed or leased vehicle, it covers the difference between the ACV settlement and your remaining loan or lease balance. You also have the option in most states to retain the salvage vehicle at a reduced settlement, though this limits future insurability.

Does the body shop negotiate with the insurance company on my behalf?

Yes — a quality body shop handles the back-and-forth with your insurer on estimate approval, supplement review, parts disputes, and labor operations. They are your advocate in that negotiation. This is one of the most valuable things a skilled collision center does beyond the actual repairs. You shouldn’t have to argue with an adjuster over line items — your shop’s estimator does that work for you.

What is a betterment charge in an insurance claim?

A betterment charge is a deduction applied by your insurer when worn or depreciated parts (like tires, batteries, or belts) are replaced with new ones as part of your repair. The insurer’s position is that replacing worn parts with brand-new ones is an upgrade over the vehicle’s pre-accident condition, so they only pay a percentage of the replacement cost. This is legal and common on older vehicles. Your body shop should flag all betterment items in the estimate upfront so there are no surprises at pickup.

Ready to start your insurance claim?

Contact Brea Auto Body — North Orange County’s trusted collision repair experts. We handle everything from claim number to keys.

Before you pay your deductible and take your keys, confirm all of the following:

• ? Panel gaps are even and consistent on all repaired areas
• ? Paint matches and texture is consistent in natural daylight
• ? No dashboard warning lights or fault codes
• ? All driver-assist features tested and functioning correctly
• ? Doors, hood, and trunk open, close, and latch properly
• ? Post-repair scan report received showing all codes cleared
• ? ADAS calibration certificate(s) received for all affected systems
• ? Written repair warranty received and reviewed
• ? Final invoice reviewed and matches approved estimate + supplements
• ? Rental vehicle returned (don’t return it until satisfied with your repair)
• ? All documents filed with your insurance records