Hi, I need a locksmith to replace a broken deadlock on a metal security gate at my workplace in Darlington. The existing lock jammed completely and could no longer be opened. It has since been removed. It appears to be a heavy duty surface mounted deadlock, possibly a Lockwood type. I’d like someone to supply and install a suitable replacement, ideally using the existing fittings. Photos attached. Please provide an approximate quote for labour and parts. Thanks, Johnny