Van builds, UK
What does a camper van conversion cost?
Two vans on the same driveway, both described as a campervan conversion, can be separated by an order of magnitude. One has a foam mattress, a cool box and a plug-in hookup. The other has a 600Ah lithium bank, a diesel heater, a pop-top, a shower and furniture built to millimetre tolerances. Nobody can quote you honestly until you decide which van you are building. Below is what each system does to your budget, and what to ask a converter for. Then get real quotes for your actual van.
V5C
the registration certificate you must update when you change a vehicle's body type to motor caravan
Exterior
DVLA gives a body type description based on the vehicle's external appearance
8 lines
the budget lines that decide what a conversion costs, from base van to finished cabinetry
Three steps
- Tell us about the van and the build you want. Two minutes, no account needed.
- We pass your details to van conversion specialists covering your area, and to no one else.
- They talk layout with you and quote your actual van. Compare, choose, or walk away.
Campervan Conversion Cost is a free introduction service operated by Ellul Solutions Ltd. We are not a van converter, an insurer or a broker, and nothing here is legal, engineering or insurance advice. We are not affiliated with DVLA, DVSA, any government department or any vehicle manufacturer named on this site. We pass your details to relevant van conversion specialists who quote you directly; we may receive a fee from providers, you pay nothing and are under no obligation. DVLA points are cited to gov.uk and were checked on the date shown, requirements change, so confirm the current position with DVLA before you rely on it.
What decides the cost of a campervan conversion, 2026
Last updated
There is no honest single price for a campervan conversion, because the phrase covers everything from a bed platform and a cool box to a fully engineered off-grid vehicle. What is stable across every build is which decisions move the money. This table lists them in the order they usually bite, explains why each one moves the number, and gives the exact thing to ask a converter so two quotes describe the same van.
This is a cost driver table, not a price list. Each row is a decision or a system that converters price separately, with the direction it moves a quote and the wording that pins it down in writing. We publish no pound figures because the range for a conversion is genuinely enormous and any single number would mislead most readers; the DVLA points are cited to gov.uk. For your number, get quotes for your actual van and your actual layout.
| Budget line | Why it moves the price | What to ask for |
|---|---|---|
| The base van | Age, mileage, service history and rust decide whether you are building on a sound platform or funding a restoration you did not plan. Wheelbase and roof height set the layout before anything else does, and a van you can stand up in changes the whole build. | An honest pre-purchase inspection, particularly of sills, arches, floor and any previous repairs, before you spend a penny on the conversion. |
| Self-build or professional conversion | The largest single fork in the road. A self-build trades a very large labour cost for your own time, tools and mistakes; a professional build buys a warranty, a slot in a workshop diary and a finish you are unlikely to match first time. Part builds (a converter does the shell, you do the furniture) sit between the two. | If professional: what is in the quote, what stages you can take over, and what warranty covers the work. |
| Electrical system | Usually the biggest surprise. Battery chemistry and capacity, solar array size, inverter rating, DC-DC charging from the alternator, and whether you want mains hookup all compound. Going from lights and a phone charger to running an induction hob and a coffee machine off-grid is a step change, not an upgrade. | A wiring schematic, the battery capacity and chemistry, the inverter rating, cable sizes and fusing, and who certifies the installation. |
| Heating and insulation | Insulation is cheap in materials and expensive in labour, and it is the thing you cannot retrofit later without stripping the van. Heating choice (diesel air heater, gas, or nothing) changes the fuel system, the fitting complexity and the certification you need. | The insulation material, thickness and where it goes, including the floor and the cab bulkhead, plus the heater make, fuel source and who fits it. |
| Windows, roof and standing height | Cutting the van is skilled, irreversible work. A pop-top or high-top is one of the most expensive single items in a conversion, and window count drives both material and labour. Every hole is also a future leak if it is detailed badly. | The roof product, who fits it, the sealing detail and warranty, and how many windows and roof vents are included. |
| Water, waste and washroom | A tap and a jerry can is a small line. A pressurised system with fresh and grey tanks, a water heater, a shower tray and a toilet is a different project involving plumbing, drainage, extra weight and space that then cannot be used for anything else. | Tank capacities, whether tanks are internal or underslung, water heater type, and whether the washroom is a wet room or a cassette toilet in a cupboard. |
| Cabinetry and finish | The visible half of the build and the one where labour dominates. Flat-pack modules, hand-built ply and furniture-grade carpentry are three different price brackets, and weight rises with quality of materials unless it is designed for lightness. | The board material and thickness, the edging and finishing, how many units, and whether the design is weight-optimised. |
| Weight, paperwork and running it legally | Every system added is payload spent. A conversion still has to sit within the vehicle's maximum authorised mass with people, water and kit on board, and it still needs MOT, tax and insurance. If you want DVLA to record the body type as a motor caravan, that is its own process based on how the vehicle appears and is equipped. | A weight budget for the build, a weighbridge check when it is finished, and confirmation of what documentation you will get for gas, electrics and any habitation work. |
- The electrical system, standing height (pop-top or high-top) and the washroom are the three decisions that most often double a campervan conversion budget between the first sketch and the final quote.
- If you convert a van to a campervan or motor caravan you must update the vehicle's registration certificate, and DVLA gives a body type description based on the vehicle's external appearance (gov.uk).
- Insulation is the cheapest material and the most expensive omission in a van conversion, because retrofitting it means stripping out finished furniture and linings.
Cite this page
“What decides the cost of a campervan conversion, 2026”, Campervan Conversion Cost, https://campervanconversioncost.co.uk/ (updated 2026-08-14). This is a cost driver table, not a price list. Each row is a decision or a system that converters price separately, with the direction it moves a quote and the wording that pins it down in writing. We publish no pound figures because the range for a conversion is genuinely enormous and any single number would mislead most readers; the DVLA points are cited to gov.uk. For your number, get quotes for your actual van and your actual layout.
Read next
The longer answers, with sources.
Campervan conversion cost breakdown: where the money actually goes
A campervan conversion cost breakdown by system: base van, insulation, roof, electrics, heating, water, furniture. Which lines dominate, and where people underestimate.
Campervan conversion and DVLA: changing the body type on your V5C
Campervan conversion and DVLA: recording a van as a motor caravan, why the V5C body type must be updated, and what it does not change about MOT, tax and insurance.
Self-build vs professional campervan conversion: which is right for you
Self-build or professional van conversion: the real trade-offs in cost, time, skills, warranty and resale, plus the part-build route most people never consider.
Camper conversion electrical system: what it costs and how to size it
How to size a camper conversion electrical system: an amp-hour budget first, then battery, solar, inverter and charging. Why this line so often doubles a build budget.
Questions, answered directly
How much does a campervan conversion cost in the UK?
There is no reliable single figure, and anyone quoting one is describing a specific van rather than yours. A simple self-build with a bed, storage and basic 12V power sits far below a professional off-grid conversion with a pop-top, lithium bank, heating and a washroom. Decide early on the roof, the electrical system and whether you want a washroom, because those three decide most of the budget, then get quotes for your actual van.
What should I do first when converting a van?
Two things before any building. Get the base van properly inspected, especially for rust in the sills, arches and floor, and write an electrical energy budget in amp-hours per day. The first stops you funding an unplanned restoration; the second stops the electrical system rewriting your budget halfway through.
Do I need to tell DVLA about a campervan conversion?
You must update the V5C registration certificate if the vehicle's body type changes, and gov.uk gives converting a van to a campervan or motor caravan as its example. DVLA gives a body type description based on the vehicle's external appearance, so check DVLA's current requirements before finalising the exterior if the classification matters to you.
Should I get a professional to do the electrics and gas?
For LPG, yes: have it designed and installed by an engineer qualified for LPG in leisure vehicles, and keep the documentation. For 12V and mains work, a competent self-builder can do the low voltage side with care, but mains installations should be installed and tested by someone qualified, and any system benefits from a documented schematic, correct cable sizing and proper fusing.
How long does a campervan conversion take?
A professional conversion is usually measured in weeks of workshop time, but the real constraint is the waiting list: good converters are often booked months ahead. A self-build is realistically measured in months of weekends, and almost everyone underestimates it. If you have a fixed date in mind, work backwards from it and build in slack.
Is this quote service really free?
Yes, free to you and with no obligation to accept any quote. We pass your details only to relevant van conversion specialists, who quote you directly. We may receive a fee from those providers, which is how the service is funded.