In 1953 the band decided that a change to traditional brass should occur. The band's name then changed to ‘Kinneil Colliery Silver Band' to reflect the support the band received from the miners of Kinneil Colliery. The band's most notable claims to fame came in 1959 when they won the second section national championships and in 1965, it was placed fourth in the National Championships of Great Britain despite a disastrous ending to the test piece Triumphant Rhapsody.

Kinneil maintained a strong link to the local mine workers, who subscribed to the band until the colliery closed in 1983. Shortly after the closure of the colliery, support was received from the National Union of Public Employees. In 1993, NUPE amalgamated with the other public sector unions to form UNISON and the band changed its name to UNISON Kinneil Band to mark their continued support.

In 2019, disaster struck when a massive fire tore through Newtown Park, the home of Bo'ness United Football Club, and gutted the bandhall. Over a century of trophies, memorabilia, and irreplaceable items were lost in the blaze. Yet, even in the face of this heartbreaking setback, the band’s determination remained unwavering. Today, Kinneil Band continues to thrive, carrying forward its proud tradition of music and community.