The buildings on the Thames site are the oldest surviving buildings associated with the firm of A. & G. Price, the earlier buildings at Onehunga having been demolished in 1957. Thames remained the firm's headquarters until 1968 when a head office in Auckland was opened, although Thames remained the centre of the firm's engineering activities. The Thames works grew in a piecemeal fashion. Mainly concerned with the production of machinery and plant for the Thames goldfield, Price also produced equipment for the timber milling industry, and boilers and engines for coastal boats and mine pumps. They later developed into the manufacture of railway engines.