1. Troubleshooting and repair electrical works to ensure functionality, including but not limited to air-conditioning, refrigeration, and plumbing. 2. Installing, maintaining, and repairing electrical control wiring and lighting system. 3. Performing general electrical maintenance. 4. Repairing and replacing equipment, electrical wiring and fixtures. 5. Troubleshooting electrical issues using appreciated testing device. 6. Liaise with customers/constructor in regards to electricity maintenance or installation 7. Handle electrical circuit and connection for lighting and power. 8. Repair and maintain sewage piping system, water outlet and valve