Joe Locksmithing & Trading is a locksmithing service in Serangoon offering HDB and residential lock replacement and repair services. The service specialises in main door locksets, gate level locks, and related locksmithing work, handled by Mr Leong who is noted for being professional, patient, and helpful. Mr Leong is able to address complex issues including ground settlement effects on door alignment. Customers appreciate the professional service and patient problem-solving.