Roof, Slide and Awning
RV and Van Roof Rack, Ladder and Roof Deck Installation
Typical range
$400 to $3,500
Shop hours
2 to 14
Labor rate
$210/hr
The short answer
Roof rack and ladder installation mounts racks, ladders, decks, and solar arrays into verified structural blocking with correctly sealed penetrations. Work runs $400 to $3,500, or 2 to 14 hours at $210 per hour plus parts, on RVs, camper vans, and fleet vehicles.
01
What this work actually involves
An RV roof is decking over rafters, not a load-bearing plate, so where a rack or ladder lands matters more than what the hardware is rated for. Fastening into 3/8 inch luan between rafters gives you a mount that holds until the first freeway expansion joint, then works loose and becomes a leak. Every mount we install lands on a rafter, on factory blocking, or on blocking we add, and where the wall or ceiling has to be opened to verify what is behind it, we open it. That verification is most of the labor on a job like this and it is not optional.
Sealing is the other half. Every fastener through a roof is a hole through the membrane into decking, and a screw driven through EPDM with a bead of sealant on top of it is a leak with a delay. We bed the mounting foot on butyl, drive the fastener to seat without crushing the membrane, then dress the perimeter and every head with self-leveling lap sealant. On camper van conversions with a painted steel roof, the sequence is different again, since bare steel at a drilled hole in coastal Oceanside or Long Beach air starts corroding within weeks unless the hole is treated.
Load direction is worth thinking about before drilling. A rear ladder on a fiberglass cap carries mostly vertical load but the top mounts see prying force every time someone climbs, and vintage caps in particular crack at those upper mounts. Overland and expedition builds add roof decks, awning rails, recovery boards, and solar, which stack both weight and wind load high on a vehicle that already handles poorly in a crosswind. We ask what is actually going on the rack, because a rack sized for two paddleboards is not a rack sized for a rooftop tent and four people.
Systems and brands we work on: Dicor, Eternabond, EPDM.
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
- Rafter and blocking location before any hole is drilled
- Structural blocking fabrication and installation where the roof has none
- Rear ladder installation on fiberglass caps and aluminum rear walls
- Roof rack, crossbar, and roof deck installation on RVs and camper vans
- Solar panel mounting with correct foot spacing and wiring pass-through
- Awning rail, recovery board, and cargo box mounting on expedition builds
- Backing plate installation where blocking cannot be reached
- Butyl bedding and self-leveling lap sealant at every roof penetration
- Bare metal treatment at drilled holes on steel and aluminum roofs
- Load check and water test at every mounting point before delivery
03
When you need this service
- A ladder that flexes, shifts, or creaks under weight
- Cracking in a fiberglass cap radiating from an upper ladder mount
- Sealant lifting or fasteners backing out at a rack foot
- Water staining inside the coach directly below a rack or ladder mount
- A rack that was installed without blocking and has begun to loosen
- Solar panel feet that have worked loose or lifted at one corner
- A need for a rack, deck, or mount that does not exist as a bolt-on for your vehicle
04
How we do it, step by step
- 01
Load and use interview
What is going on the rack, how much it weighs, and how the vehicle is used. A rack for paddleboards and a rack for a rooftop tent are different structural problems.
- 02
Structure location
Rafters and factory blocking located from above and confirmed from inside where access allows. Nothing is drilled based on a measurement from a brochure.
- 03
Blocking and backing preparation
Where no structure exists at the required mounting point, blocking is added or backing plates are installed so the load spreads across the deck instead of into it.
- 04
Layout and dry fit
Hardware laid out and dry fitted so foot spacing lands on structure and the finished position clears vents, AC units, and the awning through its full travel.
- 05
Drilling and hole treatment
Holes drilled clean, and on steel or aluminum roofs the bare edge is treated before anything goes over it. An untreated hole in coastal air corrodes within weeks.
- 06
Mounting and sealing
Feet bedded on butyl, fasteners driven to seat without crushing the membrane, then perimeters and fastener heads dressed with self-leveling lap sealant.
- 07
Load check and water test
Every mount is load checked and the whole installation is water tested, with the interior verified dry below each penetration before delivery.
05
Pricing and posted rates
| Item | Rate or range | Notes |
|---|---|---|
| Typical job range | $400 to $3,500 | Varies with extent of damage and parts availability |
| Shop hours | 2 to 14 | 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
Sprinter Vans
Mercedes Sprinter vans run last-mile routes, trade service, and camper conversions across Southern California. Sliding door tracks
Vehicle
Cargo Vans
Cargo vans on Transit, ProMaster, Express, and Sprinter platforms carry trade tools, parts inventory, and route freight. Rear door
Vehicle
Camper Van Conversions
Camper van conversions are Sprinter, Transit, or ProMaster chassis with windows cut into the sidewalls, a roof full of penetration
Vehicle
Off-Road and Expedition RVs
Expedition RVs mount a composite habitat box on a four wheel drive truck chassis, usually through a torsion-free three or four poi
Vehicle
Class B Camper Vans
A Class B is a camper built inside a factory van shell, usually a Sprinter, Transit, ProMaster, or Chevy chassis. Because the stee
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
Box Trucks
Box trucks put a separately built cargo body on a cab chassis, and the joint between them is where most failures start. Rear frame
08
Questions about roof rack and ladder installation
Frequently asked questions
How much does it cost to install an RV roof rack or ladder?
A rear ladder into existing blocking runs $400 to $800. A van roof rack with new blocking fabricated and multiple sealed penetrations runs $1,200 to $2,200. A full expedition roof deck with solar, awning rail, and custom mounts runs toward $3,500. The range is 2 to 14 hours at $210 per hour plus parts.
Will drilling into my roof cause leaks?
Not when it is done correctly. The failure mode is always sealant applied on top of a fastener instead of the foot being bedded on butyl underneath. We bed every mounting foot, seat the fastener without crushing the membrane, seal the perimeter and heads with self-leveling lap sealant, and water test the installation before the unit leaves.
Can you add a rack to a roof that has no blocking?
Yes, and it is common on lightweight trailers and older coaches. We fabricate and install blocking between the rafters, or fit backing plates that spread the load across the deck where the ceiling cannot be opened. Mounting into unsupported decking is the one approach we will not do, because it works loose and becomes a leak.
How much weight can my RV roof carry?
It varies enormously by construction, and the honest answer requires looking at your rafter spacing and material. Many travel trailer roofs are not rated for foot traffic at all, while a Class A with steel tube framing carries considerably more. We work to the vehicle manufacturer figure where one exists and design the mounting to spread load where it does not.
09
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More roof, slide and awning work
Ready to move on roof rack and ladder installation? Bring it to Yorba Linda.