London, Ontario's trusted mobile locksmith for over 50 years. D & L Mobile Locksmith provides residential, commercial, and industrial locksmith services across London and surrounding areas — including emergency lockout service, lock installation, rekeying, key duplication, and security system installation. Our fast-response locksmiths serve Byron, Masonville, White Oaks, Westmount, and all London neighbourhoods. We've built lasting relationships with our community through reliable, honest service. Locked out? Need a lock rekeyed or a security system installed? Call D & L today.