Collision and Structural
Aluminum Skin and Sidewall Replacement, Including Airstream
Typical range
$2,500 to $25,000+
Shop hours
16 to 120+
Labor rate
$210/hr
The short answer
Aluminum skin and sidewall replacement covers panel replacement on stick-and-tin trailers and riveted monocoque trailers including Airstream. Work runs $2,500 to $25,000 and up, or 16 to 120 hours at $210 per hour plus materials.
01
What this work actually involves
Aluminum-skinned trailers fail differently than laminated ones. On stick-and-tin construction the skin is a weather barrier stretched over a wood or aluminum frame, so damage tends to stay local and panel replacement is straightforward once you can source matching stock. On a riveted monocoque like an Airstream, the skin is the structure, and replacing a panel means understanding how load moves through the shell before you drill out a single rivet.
The hard part on both is corrosion. Steel fasteners in aluminum panels corrode galvanically, especially in coastal Southern California, and a panel that looks fine can be held on by fasteners that have lost most of their section. We find this constantly on units from Newport Beach, Long Beach, Oceanside, and the coastal San Diego cities.
Alloy and temper matter as much as gauge does. Trailer skins are commonly 3003 or 5052 in an H14 or H32 temper, and those do not form the same way. Substituting a harder temper because it happened to be on the supplier rack gives you a panel that cracks at the brake line when a return is formed, or that will not take a slight compound curve without oil-canning across the middle. Rivet specification is equally particular on a riveted shell, since a solid rivet of the wrong diameter enlarges the hole and shifts load onto the panel edge instead of the frame member behind it. We match alloy, temper, gauge, and fastener to what the builder used.
We work all years and all makes, and we currently have a 1959 Flxible in the shop alongside current-year units. Vintage panel work is a normal part of what we do, not an exception.
Location: All work is performed at our Yorba Linda facility. We do not offer mobile, roadside, or fleet route service.
02
What the job includes
- Aluminum panel replacement on stick-and-tin construction
- Riveted shell panel replacement on Airstream and similar monocoque trailers
- Rivet removal, hole preparation, and correct rivet specification on reinstall
- Corroded fastener replacement and galvanic isolation
- Frame and stud repair behind the skin where the substrate has failed
- Seam sealing and butyl replacement at every panel lap
- Polished aluminum restoration and finish matching
- Vintage and discontinued panel fabrication where stock is unavailable
- Insulation replacement in the wall cavity during panel-off work
- Alloy, temper, and gauge matching on replacement stock instead of nearest-available substitution
- Segmented repair where a damaged section is cut in rather than replacing a full sheet
- Post-repair water test at every seam
03
When you need this service
- Rivet heads that are lifted, swollen, or weeping a white powder
- A panel edge that has lifted or opened at a lap seam
- Dents that have stretched the panel past what can be worked out
- Corrosion blooming under paint along a lower panel
- Water staining inside that follows a seam line rather than a penetration
- Any impact damage on a riveted shell, which is structural by definition
- A skin that ripples or oil-cans in a way it plainly did not when the trailer was new
- Chalky gray streaks bleeding out from beneath a lap seam after rain
04
How we do it, step by step
- 01
Assessment and fastener survey
Every rivet and fastener in the affected area checked. On coastal units the fastener corrosion is usually a bigger job than the visible damage.
- 02
Panel sourcing or fabrication
Matching stock located, or the panel formed in house where the original is discontinued. On vintage units fabrication is the normal path.
- 03
Controlled removal
Rivets drilled rather than sheared, holes preserved where possible. On a monocoque shell we support the structure before removing a load-bearing panel.
- 04
Bucking access
Solid rivets have to be bucked from inside, so interior panel, cabinetry, or insulation in the affected bay comes out first. Owners are often surprised an exterior panel job begins with interior teardown, but there is no way to set a solid rivet from one side of the wall.
- 05
Substrate repair
Studs, framing, and insulation behind the panel repaired or replaced while the wall is open. This access does not come back cheaply.
- 06
Trial fit and hole transfer
The new panel is clamped in position, hole locations transferred from the structure rather than from the old panel, and every hole drilled and deburred before final fastening. Copying a pattern off a damaged panel simply repeats the damage.
- 07
Panel fit and fastening
New panel fitted, seams sealed with the correct butyl, and fastened to the original specification with isolation where dissimilar metals meet.
- 08
Finish
Polished to match adjacent panels on a bare shell, which means working through progressive grits until the new sheet reflects the same way the old one does, or primed, painted, and blended into the surrounding coating on a finished unit.
- 09
Water test
Every replaced seam and every new fastener line is flooded and watched from inside with the interior still open, so anything found at test can be corrected without pulling the panel a second time.
05
Pricing and posted rates
| Item | Rate or range | Notes |
|---|---|---|
| Typical job range | $2,500 to $25,000+ | Varies with extent of damage and parts availability |
| Shop hours | 16 to 120+ | Quoted after teardown, not before |
| Body and paint labor | $210 per hour | 2026 posted rate |
| Paint supplies | $55 per paint hour | Calculated automatically on every estimate |
| Body supplies | $5 per body hour | Calculated automatically on every estimate |
| Parts | 100% markup under $100, 35% over | Special order parts require a non refundable deposit at order |
| Deposit | 50% at authorization over $2,000 | Additional 25% when parts arrive on jobs over $10,000 |
| Sales tax | 7.75% on parts and materials | Labor is not taxed |
Insurance billed jobs may be billed at carrier negotiated labor rates that differ from the posted retail rates above. See all posted rates.
07
Vehicles we do this work on
Vehicle
Travel Trailers
A travel trailer tows from a ball hitch behind the tow vehicle rear axle on an A-frame tongue, which makes it the most sway-prone
Vehicle
Vintage and Classic RVs
Vintage coaches, from riveted aluminum Airstreams and Avions to GMC motorhomes and 1970s Class A units, use construction and parts
Vehicle
Utility Trailers
A utility trailer is an open deck on a welded frame with fenders, a ramp gate, and lighting, and it fails through deck rot, frame
Vehicle
Toy Hauler Trailers
A bumper pull toy hauler carries cargo behind the axles on a ball hitch, which is the worst possible combination for tongue weight
Vehicle
Bus Conversions, Prevost and Marathon
A Prevost, MCI, or Van Hool conversion is a commercial motorcoach shell finished by a second-stage builder such as Marathon, Feath
08
Questions about aluminum skin and sidewall replacement
Frequently asked questions
Do you work on Airstream trailers?
Yes. Riveted shell panel replacement, corroded fastener work, structural repair, and polished aluminum restoration are all in-house. On a monocoque shell the skin is structure, so we support the shell before removing a load-bearing panel rather than treating it as a cosmetic panel swap.
What does aluminum sidewall replacement cost?
$2,500 to $25,000 and up, or 16 to 120 hours at $210 per hour plus materials. A single lower panel on a stick-and-tin trailer sits near the low end. Multiple riveted panels on a vintage shell with fabrication and polishing sits at the high end.
Why are my rivet heads turning white and lifting?
That is galvanic corrosion between dissimilar metals, accelerated by salt air. It is extremely common on coastal Southern California trailers. The fastener is losing section, the surrounding aluminum is being consumed, and the seal at that point is gone. It needs fastener replacement with proper isolation, not just cleaning.
Can you fabricate a panel that is no longer available?
Yes. On vintage and discontinued units, forming the panel in house is frequently the only option and it is a normal part of this work. We currently have a 1959 restoration in the shop.
How long will a panel job take?
A single lower panel on a stick-and-tin trailer with stock on hand is usually one to two weeks. Riveted shell work runs three to ten weeks, driven mostly by interior access, what the fastener survey turns up, and whether the panel has to be formed here. Vintage units are slowest of all, because locating period-correct stock and matching a polished finish are both open-ended. We set the schedule after the fastener survey, since that is where scope on a coastal unit typically grows.
Can a dent be worked out instead of replacing the panel?
Sometimes. Aluminum work hardens as it deforms, so a shallow dent in a flat area can often be planished and finished, while a sharp crease has already stretched the metal further than it can be shrunk back. On a polished shell any worked area shows in reflection no matter how carefully it is finished, which is why owners of bare trailers frequently choose replacement over repair for anything at eye level. We show you the area under raking shop light and let you decide.
09
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