A mobile locksmith business based at 976 Hougang Street 91, in Hougang, which says it has operated for more than 25 years and works 24 hours a day, seven days a week. The website says its teams cover five regions of Singapore, Central, North, North-East, East and West. It serves homes, offices, shops, cars and motorcycles, with emergency unlocking, including car door unlocking. The work listed includes digital door lock sales and installation, lock and knob installation, window lock repair, glass door lock installation, and sliding door repair. The website says quotes can be requested for any job with no commitment. Reviewers mention door unlocking, digital locks and door knob replacement most often. One customer with a smart lock that would not work was given phone advice that saved them money, and says the advice was professional. Another says a technician arrived within 30 minutes and handled a very old door carefully, and cites more than 35 years of experience. One early review describes the service as rude. Within a kilometre there are two other locksmith listings, both 0.7 km away. SIAH'S OLD-SAFE SERVICE rates 4.7 from nine reviews, and Joe Locksmithing and Trading rates 5.0 from three.