18/11/2025
Still using an old Chubb / Union mortice lock that “works fine”?
Your insurer may now expect a BS 3621 lock on external timber doors for proper thief-resistant performance and a 20 mm deadbolt throw.
WG Locksmiths Ltd upgrades older mortice deadlocks to BS 3621 5-lever options from recognised brands. Tidy fitting, clear pricing, and guidance on BS 8621 / BS 10621 escape locks for flats and shared exits.
Based in Beckenham (BR3) and covering Bromley, Crystal Palace, Sydenham, West Wickham and Chislehurst. DBS-checked and fully insured.
📸 Send us a WhatsApp message or DM with photos of your door edge and lock faceplate and we’ll reply during working hours with advice and a quote.