Cosmic Campervans

About Cosmic Campervans

Derby's highest-rated campervan conversion specialist, with over 1,000 pop-top roof installations and a 4.9-star rating across nearly 200 verified reviews. Cosmic Campervans offer full conversions, pop-top installations, diesel heaters, solar, and a full accessories service from their Allenton workshop — known for some of the fastest turnaround times in the UK.

Base Vehicles They Convert

Pricing

Not sure what's a fair price? Read our guide to campervan conversion costs or estimate your build budget before you enquire.

Accreditations & Credentials

Reviews(273 total)

Get a ballpark figure for your build — not a quote. Actual prices depend on your specific requirements and the converter.

Use these to evaluate any converter — not just this one.

1. 1. Can I see examples of similar builds you've completed?

   Portfolio evidence is the best indicator of quality and style match.

2. 2. What's included in your quoted price — and what isn't?

   Quotes can vary widely on what's considered a "standard" inclusion.

3. 3. What deposit do you require and what's the payment schedule?

   Understand the full payment structure before committing.

4. 4. How do you handle changes or additions once the build has started?

   Scope creep is common — know the process and any extra costs upfront.

5. 5. What does your warranty cover, and for how long?

   Good builders stand behind their work. Check what's covered and what's excluded.

Recommended reading

Guides worth reading before you enquire with Cosmic Campervans.

• How Much Does a Campervan Conversion Cost in 2026?
• The Complete Guide to Choosing a Campervan Converter
• Pop-Top vs Fixed High-Top: Which Roof Is Best?