Craig Nicholls – Managing Director

Joined Calder Services as Business Development Manager in September 2000 having previously worked in the retail industry. Promoted to Managing Director in July 2007.

Derek Niven – Technical Director

Rejoined Calder Services as a Heating Engineer in September 1992 having previously served his apprenticeship with Calder but left to see the world. Promoted to Technical Director in February 2008.

Simon Nowell – Operations Director

Joined Calder Services as Service Controller in October 1991. Promoted to Operations Director in January 2009.

Graham Harrison – Field Service Director

Joined Calder Services in October 1980. Promoted to Field Service Director in January 2009.