Two years after the Fireclay Works opened, Gartcosh became home to its first ironworks – Woodneuk Iron Works- it was probably built on the Woodneuk estate. The firm who operated Woodneuk ironworks was Gray and Watson. James Gray retired in 1865 but Archibald Gray continued the partnership with William Watson. In 1866 the works had 10 puddling furnaces, 2 heating furnaces and a rolling mill. The company suffered financial difficulties and eventually were sequestrated.