In 1851 Singer attended the Great Exhibition, observing the range of products and styles available to him; he had his own elaborate and decorative designs on display. In that same year he moved into 25 Market Place, a larger and more public display for his watchmaking business, at the same time as providing workshops for his church work and living quarters for himself and soon afterwards his family. The name 'Singer' is still visible, engraved on the window above the door lintel. Two forges in nearby Justice Lane and more workshops in Eagle Lane just behind no 25 were established. In January 1852 he married Sarah Doswell from nearby Beckington. Between 1853 and 1862, they had three children, sons Walter Herbert and Edgar Ratcliffe and daughter Amy Mary. In that same period of his family life, his business expanded greatly. A major contract was with the Reverend J W E Bennett, who had taken over the parish church of St John the Baptist in 1852, which was then in a state of disrepair. They both were in favour of ornate church décor in the Gothic Revival style that originated with the Oxford Movement and Pugin. Singer's craftsmen were kept busy for four years; much of the brass is still in the church today. Elsewhere large altar crosses may be seen in the cathedral churches of Madras, Ripon, Gloucester and Salisbury. In his obituary in the Somerset Standard in 1904 it was stated that over 600 churches were lit by candle, oil and gas, including Bristol Cathedral, on fixtures from his foundry. In 1866 Singer acquired a new permanent site for a factory in Cork Street, setting up a new furnace and recruiting craftsmen from Belgium, France and Switzerland. He re-introduced into England the process of repoussé. Among these new recruits were sand-moulders; their skills were deployed  in castings for the ecclesiastical side of the business, but then proved invaluable when statuary was requested when sand-casting was essential. "Mr J W Singer, of the Market Place, Froome, has been engaged, for the last twelve years, in the manufacture of medieval metal work, in silver, brass, and iron, which has been principally employed for ecclesiastical purposes. Nearly one hundred places of worship and other public edifices have been supplied by him...Hundreds of candlesticks, etc., of exquisite workmanship, have been sent to Oxford alone, where they are extensively used in the Colleges. Mr Singer is at present engaged in manufacturing enamelled medieval jewellery in silver...From fifteen to twenty hands are generally employed...The articles mostly manufactured are altar-rails and standards, gates, and candlesticks...The great merit of Mr Singer's productions is the variety and taste of his designs, all of which are the result of his own genius..."