Caswell FRD is a division of C. Caswell Engineering Services Limited , a privately-owned Ventilation and Air-Conditioning contracting business established 50 years ago.
As our name suggests, we are Fire Resisting Ductwork specialists and manufacture CASWELL FIRESAFE® systems under licence from Firesafe Fire Rated Ductwork Limited.

CASWELL FIRESAFE® was developed in the UK in 2003 and has since become a leading international brand which is specified worldwide. CASWELL FIRESAFE® systems have been manufactured and installed by a dedicated core of licenced Partners in over 500 prestigious buildings across the globe.

C. Caswell Engineering Services Limited, known simply as ‘Caswell’ throughout the industry, are part of C. Caswell Holdings Limited, which also incorporates Firesafe Fire Rated Ductwork Limited and Konvekta Limited. The Caswell business was formed in the UK in 1969 by Colin Coxen. Ownership and management then passed to the next generation – through siblings Richard, Charles, Carolyn & Robert – and has been run as a successful family business from our manufacturing base in Lancashire ever since.