1. Ventilation Systems Services
• Periodic maintenance of station and tunnel ventilation systems
• Fault diagnosis and repair of jet fans and axial fans
• Maintenance and replacement of fresh air and exhaust fans
• Cleaning and leakage inspections of air duct systems
• Inspection and refurbishment of dampers and air grilles
• Ventilation system testing in accordance with fire emergency scenarios
2. Mechanical Plant Rooms Services
• Periodic maintenance of mechanical equipment located in technical rooms
• Inspection and refurbishment of pump room equipment
• Maintenance of valve assemblies, manifolds, and distribution pipelines
• Fault diagnosis and repair of mechanical plant room equipment
• Ensuring piping and mechanical systems are fully operational
3. Fire Protection Systems Services
• Inspection and maintenance of sprinkler piping systems
• Testing and repair of fire hose cabinet systems
• Maintenance and commissioning of fire pumps
• Fire line pressure testing
• Integrated fire system testing with alarm scenarios
• Refurbishment of valve assemblies and line equipment
4. Domestic Water and Wastewater Systems Services
• Maintenance and repair of domestic water booster systems
• Cleaning and inspection of water storage tanks and transfer systems
• Maintenance and troubleshooting of wastewater pumping systems
• Inspection of drainage lines and blockage removal services
• Leak detection and pressure loss analysis
5. Fault Detection and Repair Services
• Fault analysis and root cause investigation in mechanical systems
• Repair or replacement of defective equipment
• Electro-mechanical integrated troubleshooting services
• Emergency response services for critical systems
• Rapid solution implementation to ensure operational continuity
6. Testing, Inspection, and Commissioning Services
• Performance testing of fans, pumps, and mechanical equipment
• Airflow and pressure measurement services
• System balancing and optimization
• Execution of fire emergency scenario tests
• Commissioning and reporting services