Dr Locks is a round-the-clock locksmith on Fernvale Road in Sengkang, with technicians who cover the whole island. The business says it has been working for 21 years and has 12 licensed specialists, each with at least four years of hands-on experience. Technicians are stationed in Bedok, Ang Mo Kio, Jurong East and Woodlands, and the aim is to reach a lockout within 30 minutes, day or night. The work covers emergency lockouts, door lock repair and replacement, letterbox locks and keys, digital lock installation for Samsung, Yale and Gateman brands, master key systems, safe opening, and car lockouts with key replacement and transponder programming. Lock repairs and car lockouts start from S$80, and digital lock installation from S$150, both as at 2026, with a quote given before work begins. Customers say the team is fast. One needed a bathroom door opened on the eve of Chinese New Year, when the firm was supposed to be closed, and was glad of the help. Another praised a technician who opened a door without damaging the lock, then followed up the next day after the only key had been lost. Someone with a broken bedroom handle had it replaced in under 30 minutes. The only other locksmith listed within a kilometre is Locksmith AX Seletar, 0.4 km away, with far fewer reviews. The WhatsApp number is +65 8243 2440, and the address is 453B Fernvale Road, Singapore 792453.