

Campervan Converter in Feniton, Devon
Mark1 Conversions Ltd is a Devon-based specialist in bespoke van to campervan conversions, serving customers across the UK.
Mark1 Conversions Ltd is a UK-registered company specializing in bespoke van to campervan conversions. The company prides itself on creating custom-designed campers that are tailored to individual lifestyles, vehicles, and adventure aspirations. They offer a comprehensive range of services, from full turnkey conversions to partial builds and specific component installations, ensuring flexibility for various customer needs.
Operating from their workshop in Devon, Mark1 Conversions serves a broad customer base spanning Devon, Cornwall, Dorset, Somerset, Wiltshire, and nationwide. Their expertise extends across a wide array of base vehicles, including popular models from Volkswagen (Transporter, Crafter), Ford (Transit Custom, Transit), Mercedes (Vito, Sprinter), Peugeot (Boxer), Citroën (Relay), Fiat (Ducato), Renault (Trafic), Vauxhall (Vivaro), and MAN (TGE). This extensive vehicle compatibility allows them to cater to diverse client preferences and requirements.
The company emphasizes craftsmanship, practicality, and style in every build, guiding clients from the initial design phase through to delivery. Their portfolio showcases a rich history of projects, highlighting their capability in installing various features such as pop-top roofs, crash-tested seating, full electrical and water systems, bespoke cabinetry, heating solutions, and external accessories like awnings and bike racks. Mark1 Conversions is committed to providing honest advice, transparent pricing, and trusted craftsmanship, aiming to deliver a seamless and satisfying conversion experience for every customer.
Reviewed by Joe Tannorella · updated May 2026 · Listing on camperbrain.com









Customers consistently find Mark1 Conversions delivers exceptional, high-quality craftsmanship for various van modifications and full conversions. Moreover, they frequently praise the first-class customer service, highlighting responsive communication, accommodating staff, and helpful guidance throughout the process. Additionally, customers appreciate the company's reliability, efficiency, and ability to deliver on budget and on time, leading to strong recommendations.
Just had our Citroen relay converted by Lee and the team at Mark 1 and we are so pleased with it. The standard of work is first class. They were very accommodating with what we wanted and kept us updated all through the process. If you’re looking for a conversion company look no further.
Great service at competitive prices from Lee and his Team. Many thanks for installing my van windows, ply and carpet lining to such a high standard and for the help and consultation provided.
Really appreciste thecservice from all at Mark1 conversions as they add a Reimo hightop roof to our van. They talked through all aspects of what we wanted, before putting together a detailed quote. They hsve then coped with nervois cutomers watching on as they cut a hole in the van roof!! Thanks all. Looking forward to seeing the finished product. Baz
Mark1 Conversions specializes in bespoke campervan builds tailored to each client. They offer everything from full, turn-key conversions for dedicated van life to practical 'Daily Driver' setups that balance everyday use with weekend adventures. The company avoids pre-fabricated kits, focusing instead on custom craftsmanship. They also handle specific upgrades, including [pop-top roofs](/services/pop-top-roofs), window installations, electrical systems, and diesel heaters, allowing for both complete builds and partial modifications.
They have extensive experience converting a wide variety of panel vans. Mark1 Conversions frequently works on popular models such as the VW Transporter and Crafter, Ford Transit and Transit Custom, and the Mercedes Sprinter. Their workshop is also equipped to handle conversions for the MAN TGE, Peugeot Boxer, Citroën Relay, and Vauxhall Vivaro, among others. This expertise allows them to adapt their bespoke designs to many different vehicle platforms.
Customization is the core of the Mark1 Conversions process. Every build is a unique project, as the company does not use standard kits or fixed layouts. Clients have direct input on all aspects of the design, from the floor plan and cabinetry to material choices and specific appliances. This bespoke approach ensures the final vehicle is crafted to perfectly match the owner's lifestyle, travel plans, and personal taste.
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To All at Mark 1 Conversions, We'd like to say how delighted we are with the superb standard of your workmanship. In addition, we found that Lee was always helpful, polite and a real pleasure to work with. You supplied us with various items for the conversion of our van and during this we needed help and advice more than once. You took trouble to help and support us, even after we'd purchased items from you and we really appreciated this. We would highly recommend you any of our friends wanting conversion work carried out. To any potential customers looking for peace of mind regarding the best choice of company to do your conversion, look no further. Thank you for everything. Kind Regards, Richard and Annee
A fantastic conversion of our Boxer van by Lee and the team. Responsive from start to finish with updates and photos along the way. We are delighted with our van which is everything we could have hoped for and we are so much looking forward to living in it for the next three months. We would highly recommend Mark 1 Conversions. A quality company with first class customer service.
Mark1 Conversions operates with a policy of financial transparency. They provide detailed, agreed-upon quotes before any work begins, ensuring there are no hidden costs or unexpected charges. Each quote is tailored to the specific, custom design and component choices for the build. This straightforward pricing model means clients know the full cost of their project from the very start, allowing for clear budgeting and peace of mind.
Yes, the company is fully endorsed by Trading Standards, which reflects their commitment to fair and honest business practices. For specific systems within a build, they also provide services like [Gas Safe Certification for hobs and cookers](/blog/your-uk-guide-to-campervan-gas-certification-why-it-matters-how-to-get-yours-sorted). This ensures that critical installations are not only high-quality but also meet stringent UK safety regulations, giving customers confidence in the safety and reliability of their campervan.
Mark1 Conversions provides ongoing aftersales care that extends beyond the day of collection. The handover process is incredibly detailed, including a full walkthrough and a personalized manual for the specific build. This commitment ensures new owners are confident in operating all the systems in their van. The company remains a point of contact for support long after the customer has driven away, standing behind their craftsmanship.
Yes, Mark1 Conversions offers a [van sourcing service](/services/van-sourcing) to help clients find the right vehicle for their project. They can provide expert guidance on which makes and models are best suited for a customer's specific conversion goals and budget. By assisting from this very first step, they help ensure the foundation of the build is solid and perfectly matched to the final design.
The process starts with an initial consultation to discuss your ideas, needs, and lifestyle. This can be a visit to the workshop or a call. Based on this discussion, Mark1 Conversions develops a bespoke design concept and a transparent, detailed quote. Once the plan and quote are approved, the build begins. Throughout the conversion, they provide regular photo updates so you can watch your van come to life.