The Dolgelly Gas & Coke Co. Ltd. was formed in 1855. In 1881, Mr Edward Jones was Chairman, John Ellis Manager and Secretary. The gasworks was first shown on the 1889 OS map, with a single gasholder. In 1895 Mr Jas. White was Manager and the registered Office was in Ruabon, George E. Woodford. On the 22nd of August 1896, land adjoining Smith Street, including works and works house, sold to Dolgelly Gas Company. 1,286 sq. yds. for £7,500. By 1901 the gasworks had expanded eastwards with a 2nd gasholder. In 1901 Mr. Ellis Jones, manager of Dolgellau gas works. Extra land was purchased on the 8th December 1903 (170 sq. yds) and the 8th October 1904 (130 sq. yds). In 1915 Robert Woodford was manager. The Annual gas production in 1949 was 14m cu.ft.. In 1952 the “Gas World Year Book”, recorded that Dolgellau was manufacturing 12 m cu.ft. of gas using horizontal retort plant. J.W. Lloyd was the manager. The Dolgellau gasworks was connected to the Barmouth gasworks in 1959, which had a surplus gas supply. It was later supplied in 1963 through the Mid Wales Gas Grid from the Maelor gasworks at Wrexham. In May 1974 two holders remained in use. A gasworks building was reused as a showroom as it faced the main street. The gasholders were still marked in the 1978 OS map, but only a single gasholder was marked on the 1983 OS map.