How much does it cost to convert a van into a campervan?
It’s one of the first questions almost every van builder asks — and one of the hardest to answer.
A simple DIY campervan with a bed, insulation and basic electrics can be built relatively affordably. A high-spec off-grid campervan with lithium batteries, solar power, heating, running water, a kitchen and a professionally finished interior can cost many times more.
As a general starting point, a DIY campervan conversion can cost anywhere from around €3,000 to more than €30,000, excluding the cost of the van itself.
Your actual campervan conversion cost will depend on the size of the vehicle, how many people will use it, the equipment you install and how much of the work you can do yourself.
This guide breaks down the main van conversion costs to help you create a realistic budget — including real examples based on current Eaglefelt prices for campervan insulation, sound deadening and interior lining materials.
Campervan Conversion Cost at a Glance
For a complete DIY conversion, these broad estimates provide a useful starting point:
| Type of campervan conversion | Estimated total conversion cost* | Typical use |
|---|---|---|
| Basic DIY campervan | €3,000–€7,000 | Weekend trips / 1–2 people |
| Mid-range DIY conversion | €7,000–€15,000 | Regular travel / 2–3 people |
| Advanced campervan conversion | €15,000–€25,000 | Longer trips / 2–4 people |
| Premium off-grid conversion | €25,000–€30,000+ | Long-term travel / families |
*Broad market-level estimates for the complete conversion. Base vehicle not included.
The final cost depends heavily on your electrical system, heating, windows, water system, furniture, insulation and interior finish.
It’s also sensible to keep approximately 10–15% of your campervan conversion budget available for unexpected expenses.
Small purchases add up quickly: wiring, connectors, fasteners, brackets, switches, trims, sealants, adhesives and tools can significantly increase the final bill.
What Determines the Cost of a Campervan Conversion?
Two campervans that look almost identical from the outside can have completely different conversion costs.
The biggest factors include:
- Base vehicle and van size
- Insulation and condensation control
- Sound deadening
- Electrical system
- Batteries and solar power
- Heating
- Windows and roof vents
- Water system
- Kitchen equipment
- Furniture
- Interior lining and flooring
- Number of beds and passengers
- DIY versus professional installation
Before ordering materials, decide what you’re actually building.
A weekend campervan for two people is a very different project from a four-season family camper designed for travelling across Europe.
1. Base Van Cost
The vehicle itself will usually be the largest single expense in your project.
Popular vans for camper conversions in Europe include:
- Fiat Ducato
- Peugeot Boxer
- Citroën Jumper / Relay
- Ford Transit
- Ford Transit Custom
- Mercedes-Benz Sprinter
- Volkswagen Crafter
- Volkswagen Transporter
- Renault Master
- Mercedes-Benz Vito
There is no single best van for a camper conversion.
The right choice depends on how many people need to travel and sleep inside, whether you need standing height and how much equipment you intend to carry.
Before buying a van, ask yourself:
- How many people will travel in it?
- How many permanent beds do you need?
- Do you need standing height?
- Will you use the campervan during winter?
- Do you need an indoor shower or toilet?
- Will you work remotely from the van?
- How much storage do you need?
- Will you carry bikes, skis or other large equipment?
Van size also affects your conversion budget.
A larger vehicle generally requires more insulation, lining, flooring, furniture and heating capacity.
2. How Much Does Campervan Insulation Cost?
This is one area where we can give much more useful figures because Eaglefelt specialises in campervan insulation and soundproofing materials.
Instead of relying on a generic insulation estimate, let’s look at the actual materials.
A panel van is essentially a large metal box, which creates three different challenges:
Heat: Bare metal transfers heat quickly.
Condensation: Warm, humid interior air can meet cold metal surfaces and create condensation.
Noise: Large sheet-metal panels can vibrate and transmit road, tyre and rain noise.
This is why campervan insulation should be considered as a system rather than expecting one material to solve every problem.
A comprehensive build can use:
Sound deadening → closed-cell insulation → thermal fill insulation → interior finish.
Campervan Sound Deadening Cost
Butyl sound deadening is used selectively on vibrating sheet-metal panels rather than necessarily covering every square centimetre of the van.
Current Eaglefelt Premium Sound Blocker prices are:
| Product | Current price |
| Premium Sound Blocker 2.0 mm | €12.90 / m |
| Premium Sound Blocker 2.5 mm | €14.90 / m |
| Premium Sound Blocker 3.0 mm | €18.90 / m |
The appropriate thickness depends on the installation location. The 2.0 mm version is particularly suitable for side panels and doors, while thicker products can be used in areas requiring greater damping.
You can compare Eaglefelt’s campervan sound deadening materials to choose the appropriate thickness for your build.
Closed-Cell Campervan Insulation Cost
Closed-cell foam is used against the metal body to reduce heat transfer and help manage condensation.
Eaglefelt offers both standard Termoflex and self-adhesive Termoflex XF.
Current prices include:
| Closed-cell insulation | Current price |
| Termoflex 5 mm | €6.90 / m |
| Termoflex 10 mm | €7.90 / m |
| Termoflex 15 mm | €9.90 / m |
| Termoflex XF 6 mm self-adhesive | €11.90 / m |
| Termoflex XF 13 mm self-adhesive | €15.90 / m |
| Termoflex XF 19 mm self-adhesive | €19.90 / m |
The materials are approximately one metre wide, so ordering 10 running metres provides approximately 10 m² of material before cutting and installation waste.
For example:
10 m of Termoflex 10 mm = €79
15 m of Termoflex 10 mm = €118.50
20 m of Termoflex 10 mm = €158
Or, using the self-adhesive XF range:
10 m of Termoflex XF 13 mm = €159
15 m of Termoflex XF 13 mm = €238.50
20 m of Termoflex XF 13 mm = €318
For builders who prioritise greater thermal performance, 19 mm is available for larger wall and roof areas where sufficient installation depth is available.
Compare the different thicknesses in our closed-cell campervan insulation range.
Polyester Thermal Insulation Cost
Polyester insulation can be used in suitable wall, roof and structural cavities to increase thermal and acoustic performance.
Eaglefelt Termo Wool is available in several sizes:
| Product | Coverage | Current price |
| Termo Wool 30 mm | 7 m² | €89 |
| Termo Wool 30 mm | 14 m² | €169 |
| Termo Wool 50 mm | 5.25 m² | €79 |
| Termo Wool 50 mm | 10.5 m² | €149 |
For example, a 14 m² roll of 30 mm Termo Wool currently costs €169, while a 10.5 m² roll of thicker 50 mm Termo Wool costs €149.
The correct amount depends on the vehicle size, layout and where thermal fill insulation will be installed.
See the available campervan thermal insulation options and roll sizes for your build.
Example: What Could the Insulation Materials Cost?
Let’s take a hypothetical campervan insulation system using current Eaglefelt pricing:
- 8 m Premium Sound Blocker 2.0 mm = €103.20
- 15 m Termoflex XF 13 mm = €238.50
- 14 m² Termo Wool 30 mm = €169
Example material total: €510.70
This isn’t a universal campervan insulation package or a quotation. The amount of each material depends on the vehicle, layout, coverage strategy and insulation specification.
However, it demonstrates something useful:
A proper campervan insulation system doesn’t necessarily have to cost thousands of euros in materials.
If you’re planning your insulation from scratch, our Complete Camper Van Insulation Guide explains how sound deadening, condensation control and thermal insulation work together before you close the walls.
3. Campervan Electrical System Cost
Broad estimated budget: €500–€6,000+
Unlike the Eaglefelt material prices above, this is a general market estimate rather than Eaglefelt pricing.
The electrical system is one of the biggest variables in a DIY campervan conversion budget.
A simple system may only need to power:
- LED lighting
- Phones
- USB devices
- A small water pump
An advanced off-grid campervan might include:
- Lithium leisure batteries
- Solar panels
- MPPT solar controller
- DC-DC charger
- 230V inverter
- Compressor fridge
- Roof fan
- Laptop charging
- USB-C outlets
- Induction cooking
- Diesel heater controls
Before buying batteries, solar panels and an inverter, calculate how much electricity you’ll actually use each day.
It’s surprisingly easy to spend thousands on an oversized electrical system that you rarely use to its full capacity.
4. Campervan Heating Cost
Broad estimated budget: €500–€2,500+
This is a general estimate rather than Eaglefelt product pricing.
If you’re planning a winter campervan conversion, heating can dramatically increase how much of the year you can comfortably use your vehicle.
Diesel air heaters are common in European campervan builds, although other heating solutions are available.
But heating should always be considered together with insulation.
A powerful heater cannot efficiently compensate for a poorly insulated metal vehicle.
Good thermal insulation reduces heat loss and helps your campervan maintain a comfortable temperature without forcing the heater to work continuously.
5. Windows, Roof Vents and Ventilation Cost
Broad estimated budget: €500–€3,000+
Windows provide natural light.
Roof vents help remove warm, humid air.
Powered roof fans can remove cooking vapour and excess heat during summer.
Ventilation is particularly important because even excellent insulation cannot eliminate the moisture generated inside a campervan.
Plan windows and roof openings early in your conversion.
Cutting a roof vent into an empty cargo van is considerably easier than doing it after you’ve installed insulation, wiring and a finished ceiling.
6. Campervan Flooring, Walls and Ceiling Cost
The cost of this stage varies considerably because it depends on the chosen plywood, flooring, wall construction and finish.
Typical materials can include:
- Floor insulation
- Subfloor
- Plywood
- Battens
- Wall panels
- Ceiling panels
- Automotive carpet
- Trim liner
- Flooring
- Adhesives
- Fasteners
- Edge trims
You don’t necessarily need expensive materials to create a professional-looking campervan.
Good preparation and careful installation often matter more than choosing the most expensive finish.
Weight should also influence your material choices.
Every kilogram used in walls, floors and furniture reduces the payload available for passengers, water, luggage and equipment.
7. How Much Does Campervan Carpet Lining Cost?
This is another area where we can calculate costs using actual Eaglefelt products.
Eaglefelt’s 4-way stretch lining carpet is designed specifically for vehicle interiors and difficult shapes such as:
- Walls
- Doors
- Pillars
- Wheel arches
- Window surrounds
- Roof panels
- Plywood panels
- Furniture
As one real-world example, Eaglefelt’s 4-way Stretch Lining Carpet Smoke Grey currently costs:
€84.90 for a 5-metre roll
The material is 2 metres wide, meaning a 5-metre roll provides approximately 10 m² of lining material before cutting waste.
Eaglefelt’s general quantity guide is:
Short-wheelbase VW T5/T6: approximately 10 metres for a full lining project including the headlining.
That would mean two 5-metre rolls:
2 × €84.90 = €169.80
Actual requirements vary depending on the vehicle and which surfaces you intend to line.
Browse our 4-way stretch campervan lining carpet to compare available automotive interior finishes.
Don’t Forget the Adhesive
Vehicle interiors experience large temperature variations, so a suitable high-temperature adhesive is important.
Eaglefelt Trim Spray Adhesive currently costs:
€13.90 per can
A useful guide for carpet lining is approximately one can per running metre of carpet.
For example, lining a small campervan with approximately 10 metres of carpet may require roughly 10 cans:
10 × €13.90 = €139
A 12-can package is also available for €149.
This gives us a realistic example for a complete small-van lining project:
10 m lining carpet: €169.80
Approx. 10 cans adhesive: €139
Example lining + adhesive total: €308.80
Again, this is an example based on the material quantity guide, not a fixed quote for every vehicle.
For installation, choose a suitable high-temperature campervan spray adhesive designed for automotive interior materials.
8. Campervan Bed and Furniture Cost
Broad estimated budget: €500–€4,000+
You don’t need complicated furniture to create a good campervan layout.
For two people, a fixed rear bed is popular because the space underneath can become a large storage garage.
Smaller vans may benefit from:
- Folding beds
- Convertible seating
- Removable furniture
- Multi-purpose storage systems
Family campervans require more careful planning.
Plan the people first.
Then design the furniture and storage around them.
9. Campervan Kitchen Cost
Broad estimated budget: €500–€3,000+
A basic campervan kitchen might include:
- Portable cooker
- Water container
- Small sink
- Worktop
- Storage
A more advanced kitchen might include:
- Compressor refrigerator
- Fixed hob
- Large sink
- Electric water pump
- Hot water
- Large fresh-water tank
- Custom cabinetry
Before spending heavily on the kitchen, think about how you actually travel.
If you prefer cooking outdoors, an oversized indoor kitchen may simply consume valuable living space.
10. Campervan Water System Cost
Broad estimated budget: €200–€2,500+
A simple campervan water system can consist of removable fresh- and grey-water containers.
More advanced installations may include:
- Fixed fresh-water tank
- Grey-water tank
- Pressure pump
- Accumulator
- Water filtration
- Hot-water system
- Indoor shower
- Outdoor shower
Remember that water is heavy.
One litre of water weighs approximately one kilogram, meaning a 100-litre water supply adds roughly 100 kg to the vehicle.
How Much Does a DIY Campervan Conversion Cost for 2 People?
A two-person campervan gives you the greatest flexibility.
You can choose a smaller vehicle, need fewer beds and can keep electrical and water systems relatively simple.
As a broad complete-build estimate:
Basic DIY campervan: €3,000–€7,000
Comfortable campervan: €7,000–€15,000
High-spec or off-grid campervan: €15,000–€25,000+
These figures are general estimates, not Eaglefelt prices.
For a two-person conversion, we’d generally prioritise:
- Insulation and condensation control
- Ventilation
- Comfortable sleeping space
- Reliable electrical system
- Practical storage
- Heating for cold-weather use
- Refrigerator
Don’t build your van around every feature you’ve seen online.
Build it around the way you actually intend to travel.
How Much Does a Campervan Conversion Cost for 4 People?
A family campervan conversion generally costs more because you need more of almost everything.
Four people can mean:
- More approved travel seats
- More beds
- More storage
- Greater electrical consumption
- More water
- More ventilation
- Higher payload requirements
A broad DIY conversion budget could be approximately:
€12,000–€30,000+, excluding the van.
Large panel vans such as the Fiat Ducato, Peugeot Boxer, Citroën Jumper, Ford Transit, Mercedes-Benz Sprinter, Volkswagen Crafter and Renault Master provide more options for family layouts.
Can You Build a Campervan for 5 People?
Yes, but a five-person campervan conversion requires careful planning.
Five passengers need suitable travelling seats as well as practical sleeping arrangements.
Possible solutions include:
Layout 1: Permanent double bed + bunk beds + convertible fifth bed.
Layout 2: Pop-top sleeping area + rear bunks + convertible bed.
Layout 3: Large rear bed + convertible dinette + additional bunk.
Solve the seating and sleeping arrangements before designing the kitchen and cabinets.
Always check the vehicle conversion, registration, seating and seat-belt requirements applicable in your country before starting construction.
Example DIY Campervan Conversion Budget
Here’s an example of how a comfortable two-person DIY campervan budget might be structured.
The Eaglefelt-related material figures use example quantities and current Eaglefelt prices. The remaining categories are broad planning estimates.
| Component | Example budget |
| Eaglefelt sound deadening | €103.20 |
| Eaglefelt closed-cell insulation | €238.50 |
| Eaglefelt thermal fill insulation | €169 |
| Eaglefelt lining carpet | €169.80 |
| Eaglefelt lining adhesive | €139 |
| Electrical system* | €2,500 |
| Heating* | €800 |
| Windows & ventilation* | €1,200 |
| Furniture & bed* | €1,500 |
| Kitchen* | €1,000 |
| Water system* | €500 |
| Lighting & accessories* | €400 |
| Other materials & miscellaneous* | €800 |
| Example total | €9,519.50 |
*General planning estimate rather than an Eaglefelt product price.
The Eaglefelt material portion in this particular example is:
€819.50
This isn’t a universal materials package or quotation. Different vehicles and builds require different quantities, thicknesses and products.
But it gives you a much more concrete idea of where the money goes.
A van conversion isn’t one big purchase.
It’s hundreds of smaller purchasing decisions.
Controlling those decisions is how you control your final budget.
Where Should You Spend Your Campervan Conversion Budget?
Some parts of a campervan are relatively easy to upgrade later.
Others become extremely difficult to access once the walls, ceiling and furniture are installed.
Prioritise the hidden structure first.
1. Rust Prevention and Preparation
Start with clean, properly prepared metal surfaces.
Treat corrosion before hiding the vehicle body behind insulation.
2. Sound Deadening
Treat unwanted panel vibration while the metal body is completely accessible. Choosing the right campervan sound deadening at this stage is much easier than trying to add it after the interior has been built.
3. Condensation Control
Install suitable closed-cell campervan insulation against the vehicle structure before closing the walls.
4. Thermal Insulation
Fill suitable cavities with lightweight polyester campervan thermal insulation to improve the thermal performance of the finished vehicle.
5. Ventilation
Plan airflow, roof vents and fans before finishing the ceiling.
6. Electrical Infrastructure
Run cables while everything is accessible.
Adding an extra cable now is easy.
Adding one after you’ve built the furniture isn’t.
7. Interior Lining
Finish the visible interior once the important systems underneath are complete. Eaglefelt’s 4-way stretch campervan lining carpet is designed for vehicle interiors including walls, doors, pillars, wheel arches and other difficult shapes.
Where Can You Save Money on a Campervan Conversion?
Doing the work yourself is the most obvious way to reduce van conversion costs.
You can also save by:
- Keeping the electrical system realistic
- Avoiding unnecessary gadgets
- Building simple furniture
- Using modular storage
- Calculating material quantities before ordering
- Choosing a simple water system
- Avoiding oversized batteries and inverters
- Doing your own interior lining
- Prioritising function over decoration
But there are areas where choosing the cheapest possible material can create false savings.
Materials hidden behind walls are a good example.
If insulation, sound deadening or adhesive fails after the interior is complete, replacing an inexpensive component may require dismantling walls, furniture and trim.
Spend carefully on the parts you don’t want to access again.
Don’t Forget Your Campervan Payload
Money isn’t your only budget.
You also have a weight budget.
Everything you install adds weight:
- Sound deadening
- Insulation
- Plywood
- Flooring
- Furniture
- Batteries
- Solar panels
- Water
- Refrigerator
- Heating
- Passengers
- Luggage
- Bikes and outdoor equipment
Payload becomes particularly important in family campervans.
Lightweight materials can leave more of the vehicle’s available payload for passengers, water and equipment.
Always calculate the expected finished vehicle weight and check the applicable legal limits for your vehicle.
DIY vs Professional Campervan Conversion
Should you convert a van yourself or pay a professional?
A DIY van conversion can reduce costs substantially, particularly if you already have the necessary tools and practical experience.
It also gives you complete control over:
- Layout
- Materials
- Insulation
- Electrical system
- Furniture
- Storage
- Interior finishing
Professional conversion costs more but can make sense for work requiring specialist knowledge, equipment or certification.
Many campervan projects therefore use a combination:
DIY where practical, professional help where necessary.
Is Converting a Van into a Campervan Worth It?
For many travellers, yes.
Building your own campervan allows you to spend money on the features that matter to you while avoiding expensive equipment you may rarely use.
There’s another advantage:
You know your campervan.
You know where the wiring runs.
You know what’s behind the walls.
You know how the insulation was installed.
You know how the furniture is attached.
And if something needs repairing thousands of kilometres from home, that knowledge can be extremely valuable.
The goal isn’t to build the most expensive campervan.
It’s to build the right campervan for the way you travel.
Start Your Campervan Conversion with the Right Materials
Beds, kitchens and cabinets receive most of the attention in campervan build videos.
But some of the most important decisions happen before any of them are installed.
The materials hidden underneath your finished interior can determine how warm, quiet and comfortable your campervan will be for years to come.
A sensible order for many builds is:
Sound deadening → condensation control → thermal insulation → wiring → interior finishing.
At Eaglefelt, we specialise in materials for DIY campervan builders and professional van converters, including campervan sound deadening materials, closed-cell thermo-acoustic insulation, polyester thermal insulation, 4-way stretch campervan lining carpet and high-temperature spray adhesive.
If you’re unsure which materials you need or in which order to install them, start with our Complete Camper Van Insulation Guide.
Plan the hidden layers first. Build the interior second.
That way, you only have to build your campervan once.
Frequently Asked Questions About Campervan Conversion Costs
How much does a campervan conversion cost?
A DIY campervan conversion can broadly cost from around €3,000 for a simple build to €30,000 or more for a high-spec conversion, excluding the base vehicle. Electrical systems, heating, windows, furniture, kitchens and water systems are among the largest variables.
How much does a DIY van conversion cost?
A basic DIY van conversion may fall around the €3,000–€7,000 range, while advanced builds can exceed €15,000–€30,000. The final cost depends heavily on the specification.
Can you convert a van into a campervan for €5,000?
Yes. A €5,000 campervan conversion can be possible if you keep the design relatively simple, perform most of the work yourself and prioritise essentials.
How much does it cost to insulate a campervan?
The answer depends on van size, material thickness and the insulation system.
Using current Eaglefelt pricing as an example, 15 running metres of Termoflex XF 13 mm costs €238.50, while a 14 m² roll of Termo Wool 30 mm costs €169.
If you add 8 metres of Premium Sound Blocker 2.0 mm at €103.20, the example sound deadening, closed-cell and thermal insulation materials total €510.70.
Actual material requirements vary by vehicle and build specification.
What is the best insulation for a campervan?
There isn’t one material that performs every function perfectly.
A comprehensive system can combine butyl sound deadening for vibration control, closed-cell foam for thermal separation and condensation control, and polyester thermal insulation in suitable cavities.
Our Complete Camper Van Insulation Guide explains how the individual insulation layers work and the order in which they should be considered.
How much does it cost to carpet line a campervan?
As a real Eaglefelt example, a 5-metre roll of 4-way stretch lining carpet currently costs €84.90.
Approximately 10 metres is typically enough to fully line a short-wheelbase VW T5/T6 including the headlining, giving an example carpet cost of €169.80.
Eaglefelt Trim Spray Adhesive costs €13.90 per can, and approximately one can per running metre of carpet is a useful installation guide.
For a 10-metre lining project, this gives an example total of approximately €308.80 for carpet and individual adhesive cans.
Actual quantities vary by vehicle and coverage.
What is the most expensive part of a campervan conversion?
Apart from the vehicle itself, the electrical system can become one of the most expensive parts of a campervan build. Large lithium battery banks, solar systems and powerful inverters can cost thousands.
Is it cheaper to build or buy a campervan?
A DIY campervan conversion can be considerably cheaper than purchasing a comparable professionally converted vehicle. However, tools, your own time, mistakes and specialist work should also be considered.
Should I insulate my van before installing furniture?
Yes. Sound deadening, condensation control, thermal insulation and much of the electrical wiring should normally be completed while the vehicle structure is accessible.
What should I do first when converting a van?
Start by planning the layout, payload and major systems. Once the empty vehicle has been prepared, early construction stages typically include rust prevention, windows and roof openings, sound deadening, insulation and electrical infrastructure before interior walls and furniture are installed.