Unibody Repair in Fontana, CA

What Is Unibody Repair?

Unibody repair is the structural repair of a vehicle built without a separate frame. In a unibody, the floor pan, the front and rear rails, the pillars and the roof rails are joined into one shell. That shell carries the weight of the car and the forces of a crash.

When it is damaged, the repair must bring the shell back to its exact shape and strength. At Royal Collision Center we measure it, pull back what can be pulled and replace damaged sections at the joints the maker approves. The finished structure is measured again before the panels go on.

Why Unibody Repair Matters in Fontana, CA

Most of the cars, crossovers and minivans on Fontana roads are unibody, from commuters on the SR-210 to family cars on Sierra Avenue. In a crash, their structure is designed to fold in some places and stay rigid in others. That design is what protects the people inside.

A unibody repaired the wrong way loses that design. A rail heated and bent back can lose its strength, and a section joined in the wrong place changes how the car folds. Repairing to the maker's procedure keeps the car as safe as it was built.

When to Consider Unibody Repair in Fontana, CA

Have the structure measured after any collision that pushed in a corner, a rail, a pillar or a floor. Doors that close differently and buckled floor panels are clues. So is any word of structural damage in your adjuster's estimate.

Look at it before you decide on a total loss, too. A measured estimate shows whether the structure can be repaired. That helps you and your insurer make the decision with real numbers.

Signs You Need Unibody Repair

These signs point to damage in the unibody:

How Our Unibody Repair Works

Every unibody repair follows the same steps:

• Step 1: Call (909) 347-6911 or request a quote, and we can tow the vehicle in.
• Step 2: Bring it in for a free estimate, and we measure the structure and read the maker's repair procedure.
• Step 3: We explain which sections will be straightened and which replaced before any work begins.
• Step 4: Once you approve, we repair the structure, measure it again and get you back on the road.

Crush Zones and Rails

The front and rear rails include crush zones, sections built to fold and absorb a crash. Once they have folded, they have done their job. Most makers call for them to be replaced, not straightened.

We measure the rails with our Chief measuring system and replace the crush zones as the procedure directs. Sections outside them may be pulled back on the Car-O-Liner. Our Computer Frame Straightening page explains that measured process.

Structural Sectioning

Sectioning replaces only the damaged part of a structural panel, joined at a location the maker approves. It keeps more of the factory structure and its seams in place than replacing the whole part. Pillars, rails, rocker panels and quarter panels are often sectioned.

The joints are welded or bonded exactly as the procedure specifies, with our welding machines on site. Then the seams are sealed and corrosion protection is restored inside the panels. Our Quarter Panel Repair page shows how this applies to the rear of the car.

Following the Maker's Repair Procedure

Every vehicle maker publishes repair procedures for its models. They say where a section may be cut, how it must be joined and which parts may never be straightened. Some cars also use high-strength steels or aluminum that change the rules, as our Aluminum Body Repair page explains.

We read the procedure for your vehicle before the repair begins. It shapes the estimate and the plan. That is the difference between a repair that looks right and one that is right.

Why Fontana Customers Choose Royal Collision Center

Our facility is I-CAR certified, so our team is trained in current structural repair methods, and ASE certified for the mechanical work that follows. We run a Car-O-Liner, a Chief measuring system, a mobile frame machine and welding machines on site, and we have served drivers since 1993. Every collision and body repair is backed by our Lifetime Warranty.

We work with all insurance companies and document the structural repair for your adjuster. Towing, on-site car rentals and customer and car drop-offs and pick-ups keep you moving. Hablamos Español.