RV detailing is priced by the length of your RV, since a 20-foot campervan and a 40-foot motorhome take very different amounts of work. Cost also depends on condition, oxidation level, roof care, and whether you add interior detailing. A basic wash and wax sits at the lower end, while full oxidation removal, roof sealing, and ceramic coating fall at the higher end. If you are wondering how much to detail an RV, or how much does it cost to detail an RV for your size of rig, we share a clear price list with RV and motorhome detailing prices confirmed before your appointment, so there are no surprises.