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Van Conversion Build Cost Estimator
Add up your conversion budget category by category, then see how much a professional install would add on top of a DIY build.
What goes into a conversion budget
This tool splits a typical van conversion into the categories that make up most build budgets: insulation, the electrical system, the water system, furniture and cabinetry, flooring, and windows or roof vents. Add your best estimate — a quote, a parts list total, or a rough guess — for each category and the tool sums them into a total materials cost.
Comparing DIY against hiring a professional
Switch the mode toggle to see two versions of the same build: a DIY total that assumes your own labor is unpaid, and a professional total that adds your entered labor cost on top of the same materials. The gap between the two is roughly what you're paying to save the time and skill of doing it yourself.
Frequently asked questions
How accurate are these cost estimates?
They're a planning starting point based on typical mid-range conversion costs, not a quote — actual prices vary widely by region, materials quality, van size and how much you shop around for deals or secondhand parts.
What's included in the “electrical system” cost category?
Typically the battery bank, solar panels, charge controller, inverter, wiring, fuses, breakers and monitoring — it's usually one of the largest single line items in a van conversion budget, so it's worth pricing out carefully.
How much cheaper is DIY really compared to hiring a professional?
This tool assumes DIY removes the labor line entirely, since your own time is the trade-off rather than a cash cost. A professional installer or conversion company adds that labor cost back in, but usually finishes faster and may carry a workmanship warranty.
Should I add a contingency on top of this total?
Yes — a contingency of roughly 10–20% on top of the estimated total is common practice for van builds, since unexpected repairs, upgrades and “while I'm in there” additions are the norm rather than the exception.