Lock change Master key systems UPVC Doors and Windows Repaired Garage Locks Broken key extraction Stockist of Double Glazing Repair Parts UPVC, Fancing and Garage Locks About us North London Locksmith has been providing locksmith and 24 hour emergency locksmith services for so many years now. From a simple lock installation to the most advanced alarm system, name it we do it. North London Locksmiths has been a part of the community for everyday locksmith needs in the entire North London, UK area, giving you 24 hour emergency locksmith service while expanding our product line and offering additional services to meet the safety and security challenges. North London Locksmith showcases a wide selection of high security locks, safes, and architectural hardware as well as imported panic hardware and locking devices.