The earliest recorded meetings of non-conformers in Kington Langley were at the dwelling house and barn of Richard Dovey in 1742, who certified the house with Philip Peirce, John Bright and John Salter. This was done in accordance with the Toleration Act of 1689 which permitted assembly for religious worship only at places certified by the Bishop of the Diocese. This was not compulsory but those meetings not registered could face prosecution (but most likely harassment) by magistrates. After the Toleration Act of 1812 certification became compulsory.
James Piniger was the occupier of a house which became certified for use as a meeting house for 'Independents' in December 1834. Pinnegar was a builder and mason, and in September 1835 he built Union Chapel. The chapel was certified as a newly erected building in the occupation of William Tanner, Benjamin Pegler and other Independents in September 1835. The Minister for the chapel was Benjamin Rees of Chippenham. The Union Chapel was placed in trust for the joint use of Moravians, Independents and Baptists. Inside is a single rear gallery supported by two iron columns. It had a pulpit and the lower seating was renewed in the late 19th century; some of the original box pews remained in the gallery in the 1930s. It was built for the Countess of Huntingdon's connexion.