Why two dents can cost very different amounts: what drives a collision repair bill

The three things every repair bill is built from

A collision repair is priced from three things: the parts that have to be replaced, the labor hours to remove, repair and reinstall everything involved, and the paint and materials needed to refinish the panels so they match. What you can see from the outside rarely sets the price. What sits behind the bumper cover or fender usually does, which is why nobody can give you an accurate number from a phone description or one photo.

We at ACE Body & Frame write free computerized estimates, and the point of that estimate is to turn those three things into line items you can read. Once you understand what each line pays for, a repair bill stops looking like a mystery number and starts looking like a list of decisions, some of which are yours to make.

Parts: usually the biggest swing

Two dents that look alike can hide very different parts lists. A bumper cover on an older sedan is one part. The same hit on a newer vehicle may involve the cover, the reinforcement bar behind it, foam absorbers, brackets, parking sensors, a camera and the wiring that connects them. Headlights are another common surprise, because many modern headlight assemblies are expensive single units rather than a bulb and a lens.

The type of part matters too. New parts from the vehicle maker, aftermarket parts and recycled parts from another vehicle all have different prices and different tradeoffs, and we explain those choices in our guide to choosing OEM, aftermarket or recycled parts. Availability also plays a role: a part that has to be shipped from far away can add days to the job even when it does not add much to the price.

• What was damaged, including parts hidden behind the outer panel
• Whether each part can be repaired or must be replaced
• The type of part specified: new from the maker, aftermarket or recycled
• Sensors, cameras and lighting built into damaged panels
• Clips, fasteners and one-time-use hardware that cannot be reused

Labor hours and what they actually pay for

Labor is the time it takes to do the work correctly, and much of it is time you never see. To fix a door dent properly, the trim panel, handle, mirror or glass may have to come off so the metal can be reached and the new paint can cover the full panel. Removing and reinstalling those parts is labor, and it is necessary labor, not padding.

Repairing a panel can take more hours than replacing it, or fewer, depending on the damage. A shallow dent in a flat area is often faster to repair. A crease across a body line or damage near an edge may be better replaced. Structural work is the largest labor item when it applies: if the frame or unibody has been pushed out of position, it has to be measured and pulled back before any outer panel will fit, and that work is done before paint.

Paint is more than a can of color

Refinishing involves preparing the surface, priming, applying color and clear coat, and curing it. The color has to match a finish that has been aging in the sun since the car was built, so the new paint is usually blended into the panels next to the repaired one. Blending is what keeps a repaired door from looking slightly different from the fender beside it in daylight.

That is why a small dent can still mean painting two or three panels. Pearl and multi-stage colors take more steps than a solid color, and plastic parts need different preparation than metal. Materials such as primers, sealers, sandpaper and masking are part of the bill as well. When you compare estimates, check whether one includes blending and the other quietly leaves it out, because that difference shows up later as a patch you can see.

Why the final bill can differ from the first estimate

The most common reason is damage nobody could see until the panel came off: a cracked bracket, a bent support, a damaged sensor mount. In insurance work this is handled as an additional request to the insurer, often called a supplement. The Texas Department of Insurance auto insurance guide notes that if the damage turns out to be worse than the adjuster first thought, you or the repair shop can ask the adjuster to increase the estimate.

If you are paying yourself, you should never be surprised. The Federal Trade Commission's auto repair advice recommends a written estimate that says the shop will get your approval before doing work beyond a set amount, and that is how we work: we show you what we found and you decide before anything extra is done. A shop that cannot explain why the number changed has not earned the difference.

The vehicle itself changes the math

The same kind of damage costs different amounts on different vehicles. A pickup bed, a cargo van side panel and a compact car door are not built the same way, and the parts, the access and the paint area all differ. Newer vehicles tend to carry more electronics in the bumpers, mirrors and windshield, and every one of those components has to be checked or replaced when the panel around it is damaged.

Motor homes and RVs are their own category. Much of their bodywork is fiberglass rather than steel, panels can be large, and parts are often specific to one manufacturer and model year. We handle motor home and RV body, fiberglass and glass work in-house, and those estimates usually depend more on parts availability than on labor. Classic cars and trucks sit at the other end: parts may need to be sourced, repaired or fabricated, and welding and fabrication can replace what no catalog still sells. In every case, the estimate should tell you why the number is what it is, not just what it is.

Where insurance fits into the number

When a claim is involved, the repair cost and your cost are two different numbers. According to the Texas Department of Insurance, you pay a deductible on collision and comprehensive claims, and the insurer pays for repair or replacement only up to the car's actual cash value. If the repair would cost more than the car is worth, the insurer may treat it as a total loss instead. When another driver was at fault, their insurer may be responsible, but fault and coverage are questions for your insurer or agent, not for a body shop.

The same guide says insurers are only required to pay for parts of like kind and quality to those that were damaged, which is where many disagreements about parts begin. If you are unsure what your policy covers before you file, it is worth a call to a licensed agent such as Aaron Husman, a property and casualty agent, so you know your deductible and coverages before the estimate arrives. Our own role is to document the damage thoroughly and work with whichever insurer is paying.

How to keep the bill honest without becoming an expert

You do not need to know how to straighten a frame to protect yourself. You need a few habits that make the estimate transparent and keep you in control of the decisions.

• Get the estimate in person, with the vehicle inspected, not from a photo alone
• Compare estimates line by line, not by the total at the bottom
• Ask which parts are new from the maker, aftermarket or recycled
• Ask whether blending into adjacent panels is included
• Ask the shop to call you before any additional work
• Keep your own photos of the damage from the day it happened
• Ask for the guarantee terms before the work starts

What a fleet manager should know about cost

For a company running trucks or vans, the repair bill is only part of the cost. Every day a vehicle sits waiting for a decision is a day a crew is short or a route is late. We offer fleet discounts for businesses that run several vehicles, and towing and rental car service are available, so a damaged work vehicle does not have to wait in a lot while someone finds time to drive it over.

The other fleet cost is the repair that was done cheaply and has to be done again. A work truck that carries employees deserves the same structural check and the same paint quality as a family car, and getting it right once is less expensive than bringing it back.

Getting a number you can actually rely on

The fastest way to a real figure is a free computerized estimate with the car in front of an estimator. Bring the vehicle to our shop on South Peachtree Road, Monday through Friday from 8 a.m. to 5 p.m., along with your insurance information if a claim is involved. If the car is not safe to drive, towing is available. We serve Balch Springs, Mesquite and the surrounding southeast Dallas County area, for families and for businesses.

We will walk you through each line, explain which parts of the price are fixed and which depend on choices, and tell you what we expect might turn up once the damaged area is opened. If you are still sorting out the claim itself, our guide to what to do after a wreck when the insurer is naming a shop covers that side, and our guide on how long a collision repair takes explains what happens once the work is approved. Every repair we do is satisfaction guaranteed.

Questions people ask me