Washdowns, as the name suggests, are places where the engines get cleaned and polished. The first was introduced in the third season, situated near Tidmouth Sheds. This later moved to the Repair Yard. Another was later seen at Maron station. This washdown is located between Crosby and Crosby Tunnel.

There are also washdowns on the Skarloey Railway; one at the quarry, one by C.G. Slate Company, one by the depot and one at the Village Square.