PopTop Adventure family build on a AWD new 144 Sprinter with a pop top electric tent and two double swivel seats, indoor hide away shower and big garage area.
3D Scanning, engineered CAD modelling, and CNC manufacturing.
Every cabinet, seat, and bed is built for your layout.
Power, water, and heating systems for real off-grid living.
Interior finishes that look like a home, not like a cargo van.
Our Craft
From Dream to Your Driveway
Explore the craftsmanship and attention to detail in our best custom van conversions.
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Comfort
Kitchenette
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Our Advantage
Why Choose Big Bear Vans?
Based in Big Bear, California, our team of expert builders and engineers deliver precision-crafted homes on wheels that stand in a class of their own.
Feature 1
True Custom Builds
Big Bear Vans is a fully custom engineering company where we create any configuration and style you want. Instead of pre-built layouts and generic templates, we customize your entire campervan from scratch. Here’s what you can choose:
Ceiling, walls, and flooring kits in different colours and textures.
Space-saving elevator bed front or rear.
Kitchen with different customized cabinets and countertops.
Lightweight Aluminum bathrooms in different sizes.
Swivel seats or extendable benches.
Exterior upgrades like suspension, wheels, tires, awning, storage boxes, etc.
We’re small, but high-tech. That’s why we can customize layouts and features other shops won’t even touch.
Feature 2
Post Build Support
From first call to last key handover, we guide and support you at every step. Unlike other RV dealers, Big Bear Vans provides great after-sales support to its customers. We offer:
1-year or 3-year extended warranty on our craftsmanship.
Servicing and installing upgrades in our workshop.
Feature 3
CNC Technology
Our Big Bear workshop is equipped with the latest industrial CNC technology. At our workshop:
A team of 5+ designers uses CAD/CAM software to model every part of your van.
Components are cut by our two CNC router machines (metal & plywood).
We have several 3D scanners for precise measurements.
The result? A fully custom campervan, exactly the way you want.
Feature 4
Family-friendly Layouts
While others are built for couples, ours are for the whole crew. We’re proud to have built several family-friendly campervans In our family layouts, you can:
Sit, sleep, and travel safely with 4 or even 9 people.
Enjoy outdoors in the rear foldable patio and roof deck.
Have a dinette area for meals, games, and homework.
Have a fully functional kitchen and a lightweight bathroom.
Feature 5
Off-grid Ready
Every Big Bear van comes with a professional-grade //electrical and water system so you can go anywhere to stay without a second thought. We install:
Rapid Alternator Charging: Up to 250A with a 2nd alternator.
Self-heating lithium batteries (15,600Wh).
Integrated grey and fresh water tanks.
A 12V slim A/C unit that runs for up to 20 hours.
Solar panels on the roof and hood.
Off-grid freedom isn’t an upgrade in our converted vans, it’s a standard.
Our Methodology
Big Bear Vans Custom Build Process
Our transparent, collaborative process ensures your vision comes to life, from initial ideas to keys in your hand.
Immediate
Step 01
Start Your Journey: Vehicle Sourcing
Bring Your Van
Already own a Sprinter? We’ll inspect it and plan your build.
We’ll Source It For You
Access a brand-new van directly from a Mercedes dealer at a great price. We secure preferential pricing in LA/San Diego and handle all paperwork.
1 Month
Step 02
Collaborative Design Phase
Zoom Consultations
Meet your Project Manager to discuss adventure trips, family size, and storage priorities.
3D Renderings & Refine
Our designers create photorealistic visuals. Tweaks are unlimited until you’re 100% satisfied.
2 Months
Step 03
Engineering & Precision Planning
Systems Optimization
Engineers ensure electrical, storage, and weight distribution are optimized for safety and functionality.
Client Involvement
Approve final blueprints and material samples like countertop finishes and fabric swatches.
3-4 Months
Step 04
Build & Assembly
Interior & Exterior Build
Cabinetry, electrical, plumbing, and roof racks or solar panels are installed by experts.
Quality Checks
Weekly photo/video updates are sent to you so you can watch your van come to life.
Pickup
Step 05
Delivery & Beyond
Walkthrough & Test Drive
Learn every feature with our team to ensure you're ready for the road.
Lifetime Support
1-Year Warranty (3 years extended) and lifetime access to our California workshops.
Ready to start your build?
Testimonials
Voices of the Van Life
"Big Bear Vans did a full conversion for my MB Sprinter, and I could not be happier! I had very specific requests, and they met all of my req..."
DR
Danora Ramsey
Verified Owner
"Big Bear Vans built an amazing custom campervan for me. I am a remote worker, so I wanted to have an office space as well as a beefy electri..."
EC
Erik Christy
Verified Owner
"They built my Sprinter camper van. These guys did amazing work! I'm so in love with my van, and for sure I'll recommend it to everyone! Than..."
AP
Aleksandr Penkin
Verified Owner
"We probably looked at 10 or 12 different kinds of Sprinter layouts and couldn't find exactly what we wanted till we found Big Bear Vans. The..."
CB
Cathy & Ben
Verified Owner
"We ended up going with Big Bear Vans because they had the design layout that we wanted for a family, and they're family-focused. They did a ..."
LT
Lake Tahoe Owners
Verified Owner
"We love it. It works great. We love the storage and how open everything is. Big Bear Vans just seemed to be the ones that really adapted to ..."
VV
Vermont Van Owners
Verified Owner
Insights & Stories
Explore Our Van Life Blog
Expert advice on custom Sprinter conversions, off-grid living, and the freedom of the open road.