Ventair Systems Ltd is one of the UK's leading ductwork manufacturers and installers. Based in South Wales, we have completed many high profile projects for companies such as John Lewis Partnership, Asda, Marriott Hotels, Ramada Inns, Diamond Synchrotron, Quinn Radiators and numerous office developments across the UK. These projects range from the complete manufacture and installation of full ventilation systems, to the manufacture and installation of full under floor heating systems.