Custom Camper Vans. Built by Hand.
We've been converting vans since 1994, and in Sebastopol since 2002. Pop-tops, full builds, and everything in between.
Or call us: (888) 332-9602
What We Do
GTRV has been building custom camper van conversions in Sebastopol, California for over 30 years. Every build starts with a conversation about how you actually travel, not a package you pick from a menu.
We do pop-tops, full builds, and everything in between on Ford Transit, Mercedes Sprinter, Ram ProMaster, and Toyota Sienna.
Not Sure Where to Start?
Most people aren't. Answer a few questions about how you want to use your van and we'll point you in the right direction. Takes about 3 minutes. No commitment.
Our Vans
Ford Transit
The most popular full-size platform in the US. High roof and pop-top options. Good for full-time travelers and weekend campers alike.
Mercedes Sprinter
The original benchmark. AWD available. Excellent for longer trips and higher build complexity.
RAM ProMaster
Easier to park, more budget-accessible. Pop-top available. Front-wheel drive and a wide, flat floor.
Toyota Sienna
The only minivan we convert. AWD standard. Our garageable pop-top Sienna is one of the most popular builds we do.
What’s Next:
The RAM ProMaster City
The RAM ProMaster City is the first genuinely new small van platform to hit the US market in years. Smaller footprint than a Transit. Easier to park. Still garageable with a pop-top. We've been doing design work on it since the specs dropped, and we're taking deposits now, before the vans arrive.
If you've been waiting for a smaller, more practical option, this is it. Getting in early means first priority on scheduling when Q1 2027 inventory lands.
Coming Q1 2027
From Our Customers
Worth Reading First
FAQ’s
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We build on four platforms: Ford Transit, Mercedes Sprinter, Ram ProMaster, and Toyota Sienna. Each one suits a different kind of traveler. Our platform comparison guide can help you figure out which one fits your situation. We're also developing builds for the 2027 Ram ProMaster City.
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It depends on the platform, the scope of the build, and what you need inside. A pop-top installation on an existing van is a different conversation than a full custom conversion from scratch. The best way to get a realistic range is to tell us a little about what you're looking for, and we'll walk you through what to expect.
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A pop-top is a roof section that raises up to give you standing room inside the van, then folds flat when you're driving or parked. It's what keeps a van garageable while still being comfortable to live in. Pop-tops are our specialty, and about half of the people who contact us are asking about them.
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Timelines vary depending on the type of build. A pop-top installation takes less time than a full custom conversion. We'll give you a realistic estimate once we know the scope of your project. The best place to start is a conversation about what you need.
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Yes. We're in Sebastopol, California, and we're happy to have visitors. If you're in the area or planning a trip through, give us a call at (888) 332-9602 and we'll set up a time to walk you through the shop.
Stay in the Loop
We send a newsletter every few weeks with what we're building, what we're learning, and what's worth knowing before you make a decision. No hype. Useful stuff.