The gasworks were built west of the town c1865. On the 30th of May 1865, the partly built gasworks at Aberdovey were to be auctioned, whilst the gas mains to the town had already been laid JGL. The gasworks in Aberdovey were operated by the Dysynni Gas Co. Ltd. Slater's 1895 Directory listed George E. Woodford as Company Secretary to the Dysynni Gas Co. Ltd. As well as the Barmouth Gas Co. Ltd.; the Dolgelly Gas Co. Ltd.; and the Rhos Gas Co. Ltd. All these companies were run by the industrialist Henry Dyke Dennis, of New Hall in Ruabon, and the company offices of all of Dennis' companies were in High Street, Ruabon. Circa 1920 a photograph showed a single-lift column guided holder in a steel tank. The retort house chimney still stood, but the roof and part of the retort house walls had gone. The gasworks had closed c1900. The gas supply was maintained, with gas supply from the gasworks at Towyn which supplied a gasholder at the site. A spiral-guided holder of 40,000 cu.ft. capacity was still in use in 1977 but was demolished about late-1982. The gasworks were visible on the OS maps from 1887 to 1902, with the gasholder station to the north visible from 1938 until 1982.