Mobile Truck Wash - 24/7 - 365 Days a Year. Mobile Fleet Wash, HGV Mobile Cleaning, Underbody Wash, HGV Detailing, Pre MOT Cleaning. Covering Bedfordshire, Hertfordshire, Cambridgeshire & North London. We have refined the art of providing onsite fleet washing services for all types of vehicles, including Units, Trailers, Rigids, Vans, Transporters, RCVs, Bulkers, Tippers, Tankers, Skip loaders, Home Delivery/Refrigerated Box Vans & Plant Machinery via our purpose built mobile cleaning vehicles and fully trained staff. Your trucks are your company?s most substantial form of advertising ? the most visible representation of your brand. Make your brand shine brightly by having onsite fleet cleaning performed regularly by Fleet Wash.