Every conversion starts with the base van. The internal length, roof height, wheel arch positions and floor condition all shape what is possible. A long-wheelbase van such as a Sprinter, Transit, Crafter or Ducato gives enough room for a fixed bed, a kitchen run and a small bathroom without the living area feeling tight. Once the van is assessed, the converter draws up a layout that places each zone, sleeping, cooking, storage and washing, in the right order for how you will actually use the space. Insulation is fitted first, followed by ply lining on the walls and ceiling, which gives a clean surface for cabinetry and hides the cable runs that come next.
The electrical system is planned and routed before the lining goes in, so every fused branch circuit is correctly sized and every cable run stays accessible. A leisure battery bank is sized to your amp-hour needs, a solar array is mounted on the roof with an MPPT charge controller, and a 230V inverter is wired in if you need mains-style power. The plumbing system follows a similar sequence: fresh and waste water tanks are positioned to maximise capacity within the floor space, food-grade pipework is secured against road vibration, and a 12V pump pressure check and full leak test are carried out before the floor or cabinetry is closed over. A diesel heater is the most common heating choice because it runs from the van’s fuel tank and draws very little from the battery bank.
Gas appliances, a hob, for example, require Gas Safe registered installation, and any gas work is carried out to that standard. Where the conversion changes the vehicle’s classification, DVLA reclassification may be required, and the converter advises on this before the build is finalised. At handover, the converter commissions every system, electrical, plumbing and heating, and walks you through how each one works, so you leave with a van you understand and can use confidently from the first trip. The written, itemised quote produced before work begins covers all of this: components, labour and timeline, with no obligation until you are happy to proceed.