On this page (7 sections)
Factory shell below, converter work above
Below the roofline a Class B is stock. The unibody, the door apertures, the rocker structure, and the crash management system are exactly what left the van plant, which means published repair procedures and real parts availability. Above the roofline it is a different animal: someone cut a large hole in a structural roof panel and bonded a moulded high top over the opening.
That cut is the defining feature of the body style. A factory roof panel contributes stiffness to the whole shell, and removing a section of it transfers load into the remaining perimeter and into whatever adhesive and fastener pattern the converter chose. Some conversions do this beautifully with a bonded flange and mechanical backup. Others rely on sealant doing a job that sealant was never asked to do.
Which one you own determines everything about a repair. We pull interior headliner panels to see the actual joint before quoting, because two vans that look identical from the outside can have completely different attachment methods and completely different repair hours behind the trim. Photographs of the outside of a van tell us almost nothing about how its top was attached.
Racks, water, and dissimilar metals
Roof rack loading is the most common way a high top starts to separate. Owners mount solar, a fan, an awning rail, and a set of crossbars, then load recovery boards and a spare on top of all of it. Static weight is not the issue. Dynamic load on a washboard road puts a prying force on the bond flange, and the joint gives up at one corner first.
Water entry at the roof cut perimeter is slow and quiet. It runs down inside the B pillar or along a wiring chase, and the owner finds it as a damp cabinet floor or a smell rather than as a drip. Tracing it means water testing in sections with the interior panels off, working from the lowest suspect point upward.
Then there is galvanic corrosion. Aluminum brackets, rails, and solar feet bolted directly to a steel body without isolation set up a small battery every time it rains, and the steel loses. It shows as a rust halo around every fastener on an otherwise clean roof. We isolate with the correct barrier and hardware on reassembly rather than just cleaning and painting the halo.
House wiring chafe belongs on the same list. Battery cable routed through a body pass-through without a proper grommet will eventually cut its own insulation on a sheet metal edge, and on a lithium bank that is a serious event rather than an inconvenience. We reroute and protect those runs during any body work that already exposes them, since doing it at that point costs almost nothing.
How we put one back together
Structural van work follows manufacturer procedure. Sectioning locations, weld type, and adhesive specification come from the published repair information, not from improvisation, because these shells use high strength steels that lose their properties if you heat them the way you would heat a 1990s panel. Sectioning a rocker at the wrong location quietly removes crash performance that nobody will test until it matters.
The high top gets treated as a bonded composite assembly rather than a body panel. Damage to it means fiberglass or composite repair, bond flange restoration, and in some cases a new top sourced from the converter. Reinstalling one correctly is a fit and clamp exercise with cure time built into the schedule. Adhesive does not care about your calendar, and neither does the fit check that follows it.
House systems get tested before delivery, not just reconnected. Shore power, the inverter, the DC-DC charger, the fridge, and the water system all get run. A van that leaves with a perfect paint job and a dead solar controller is not finished, and that is exactly the gap that appears when body work and RV work happen at two separate businesses.
How this body is built
Factory van body, unmodified below the roofline, with a fiberglass or aluminum high top bonded to the cut roof.
Chassis: Mercedes Sprinter, RAM ProMaster, or Ford Transit unibody.
The body repairs like a commercial van but the house systems repair like an RV. Both skill sets have to be in the same building.
What fails on it
These are the failure patterns we see repeatedly on this body style. They are not generic RV problems. They come from how this particular vehicle is built and how it gets used.
- High top separation at the bond line after roof rack loading
- Water intrusion at the roof cut perimeter
- Galvanic corrosion where aluminum accessories meet the steel body
- House battery wiring chafe at body pass-throughs
Claims we handle on this vehicle
- Parking impact on the high top
- Rear door and hinge damage
- Solar panel and rack tear-off
Services for this vehicle
Frequently Asked Questions
A general body shop said they would not touch my fiberglass high top. Why?
Because it is composite work, not sheet metal work, and because reinstalling it correctly requires understanding how the converter attached it. Most collision shops are set up for stamped panels and factory procedures. We handle bonded tops, roof cut perimeters, and the sealing detail around them routinely, and we test for leaks afterward rather than assuming.
Can you repair the van body and service the camper systems in one visit?
That is the point of bringing a Class B here. Collision, refinish, solar and battery work, interior cabinetry, and plumbing all happen in the same building. Splitting the job between a collision shop and an RV service center adds a second scheduling cycle and creates a gap where each side assumes the other handled something.
Someone hit my sliding door. Does that affect the conversion inside?
Often more than expected. Sliding door impacts push load into the B pillar and the floor, and conversion cabinets are usually anchored to that same structure. We check cabinet mounts, door track alignment, and any wiring or plumbing routed through the affected wall before closing anything up, then cycle the door through its full travel loaded.
What does a leak trace cost on a camper van?
Diagnostics are posted at $285 per hour and credited toward an authorized repair. A roof cut perimeter trace usually takes one to two hours because it requires interior panel removal and staged water testing. Guessing at it is cheaper on paper and tends to produce a second visit, which is why we prefer to isolate the entry point properly the first time.