Maintenance and Replacement of Compressors and Dryers for London Underground

This planned procurement invites qualified suppliers to bid for a contract to maintain and replace compressors and dryers across the London Underground network. The successful contractor will deliver comprehensive maintenance and compliance services for compressed air and pressure vessel systems through a single consolidated contract. Services will cover assets in rolling stock maintenance facilities, signalling infrastructure, fire safety systems, depot workshops, manufacturing facilities, station smoke extraction systems, effluent ejectors, and train cleaning systems. Required services include planned maintenance with scheduled inspections and servicing, 24/7 fault response and emergency support, fault diagnosis and repair with component replacement, critical spares management to ensure rapid recovery, and statutory examinations and certifications under Pressure Systems Safety Regulations. This is a safety-critical contract requiring specialist expertise in compressed air systems and pressure vessel management. Power assets are excluded from this scope. Interested suppliers should demonstrate relevant experience, technical capability, and capacity to support multiple locations across the London Underground estate.