Custom van conversion by Emery Custom Builds in Costa Mesa California

Craft Your Dream Custom Van Build

Orange County's Signature Custom Van Conversions

Sprinter, Transit, and ProMaster Conversions built by hand.

Looking for a custom van conversion in Orange County? Our Costa Mesa-based team builds custom camper vans tailored to your needs.

Custom off-grid camper van conversion by Emery Custom Builds
Van conversion custom wood cabinetry and storage compartments
Custom cargo trailer conversion interior shower stall installation
Anchor build Sprinter van conversion rear exterior view

Our Work

We specialize in high-end custom van conversions built with craftsmanship, precision, and purpose.

Custom cargo trailer conversion interior shower stall installation

Wanderwell brings together craftsmanship and heavy-duty power in a compact, well-balanced design.

Wanderwell | 14’x7′ Cargo Trailer Conversion

Wanderwell is not your minimalist, just-getting-by camper. This rig is seriously powerful, with all the modern luxuries packed into a small trailer. With AC and heating, a luxurious shower, bidet, and bathroom, sleeping room for four, French doors, and so much more. Wanderwell is a compact yet highly capable cargo trailer conversion that proves off-grid comfort doesn’t require excess. Designed with craftsmanship and function at its core, this build delivers a flexible living space and a robust power system—ready for extended travel wherever the road leads.
Van conversion sleeping area with custom blue upholstered bed platform

Designed for Slow Mornings, Long Roads, and Family Life

Haven | Ford Transit 148″ Extended

Haven was Emery Custom Builds’ original family-focused camper, designed to make time on the road feel unhurried, comfortable, and grounded. Built to transport and sleep up to four, this van balances off-grid capability with the kind of warmth and flexibility that makes traveling together easy, whether you’re chasing weekends in the wild or taking the long way home.
Van conversion interior viewed through open sliding side door

Maximum Flexibility for Self-Reliant Off-Grid Living

Crosswind | Sprinter 170″ Extended

Crosswind was built for freedom above all else. Designed around flexibility and self-reliance, this Sprinter conversion adapts easily to changing needs—whether that’s living full-time off-grid, hauling gear, or reconfiguring the space for daily life on the move. With a modular benches-to-bed layout, a powerful electrical system, and durable 80/20 cabinetry throughout, Crosswind prioritizes function without sacrificing comfort—ready to support long-term, independent travel wherever the road leads.
Custom camper van build shower installation detail

Rugged Simplicity for Quiet, Self-Reliant Travel

Daybreak | Ram ProMaster High Roof Extended

Daybreak was designed with a single goal: dependable off-grid living without unnecessary complexity or attention. Built for travelers who value simplicity, discretion, and comfort, this ProMaster is equally at home tucked into a trailhead or blending quietly into the city—ready to support days of self-reliant travel wherever the road leads. With minimal exterior markings and a quiet footprint, Daybreak is well suited for long-term urban stays, national forest campsites, and quick weekend getaways. Every element is designed to remain discreet, durable, and ready for movement.

Customers love us!

We design and build custom van and cargo trailer conversions in our Costa Mesa shop.
Off-grid electrical, plumbing, cabinetry, and full interior buildouts.

Custom van conversion interior with blue accent lighting and wood finish

Custom Vans

Full custom builds on the three most popular platforms: Mercedes Sprinter, Ram ProMaster, and Ford Transit.

Couple driving a Sprinter van cab during a winter road trip

Profession Build Consulting

DIY in confidence, knowing we've got your back.

Sprinter van conversion build in progress at Emery Custom Builds shop

Small Projects

Already started your conversion or just need help with the hard parts?

Custom cargo trailer conversion interior build

Cargo Trailers

Want more space than any van can offer? Cargo trailers give you the freedom to choose your size.

Want to know more?

Learn more about our services and who we are.

Our ServicesAbout Us

What We Build On

Custom van conversion interior with blue accent lighting and wood finish

Sprinter Vans

THE most popular van for conversions. Everything you'd want in a custom van.

Van conversion sleeping area with custom blue upholstered bed platform

Transit Vans

An absolute workhorse. Maintenance is easy and convenient.

Custom camper van build shower installation detail

ProMaster Vans

For van lifers who want maximum interior space without blowing their budget.

Custom cargo trailer conversion interior build

Cargo Trailers

Total separation between your tow vehicle and your living space.

Download our Free Van Build Budget Guide

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The numbers you need to plan your build. Our Budget Tool breaks down exactly what you get at the Basic, Standard, and Premium build levels.

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Get In Touch

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Based in Costa Mesa, CA
Serving Orange County, Los Angeles, San Diego & Inland Empire

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