Combining a trailer with a steam cleaner, pressure washer, or steam generator, these mobile, self-contained cleaning units have solid steel construction and ASME-certified welds, heavy-duty leaf-spring suspension, safety chains, a wiring harness with brake lights, adjustable-height ball hitch or lunette eye, a leveling jack, and more. The systems can be customized with an enclosed, insulated trailer. In addition to mobile cleaning, the units can be used to thaw valves, tanks and piping systems to get viscous contents moving.