Locksmith Lingo Explained

Locksmiths use a variety of terms to describe locks, keys, doors, and security systems. If you’ve ever spoken to a locksmith and wondered what certain terms mean, our simple guide can help.

Cylinder

The cylinder is the part of a lock where you insert your key. If a cylinder becomes damaged, worn, or faulty, it may need to be repaired or replaced.

Lock Barrel

A lock barrel is another common name for the lock cylinder. Depending on the type of lock, replacing the barrel lets you use a new key without replacing the entire locking mechanism.

Euro Cylinder

A Euro cylinder is a common type of lock cylinder, particularly on uPVC and composite doors. It is shaped like a euro symbol when viewed from above and can usually be replaced without changing the entire door lock.

Multipoint Lock

A multipoint locking system secures a door at several points along the frame rather than at just one point. These locks are commonly found on uPVC, composite, and some modern doors.

Lock Mechanism

The lock mechanism is the internal part that operates when you turn the key or handle. If the mechanism becomes faulty, the door may become difficult to lock, unlock, or close properly.

Deadlock

A deadlock is a type of lock that is operated by a key and does not have a spring-operated latch. It can provide an additional level of security when fitted correctly.

Night Latch

A night latch, sometimes referred to as a Yale-type lock, is fitted to the inside of a door and typically operates automatically when the door closes. A key is generally used from the outside to gain entry.

Rim Cylinder

A rim cylinder is commonly used with a night latch. It operates the lock through a cylinder mounted on the outside of the door.

Key Cutting

Key cutting is the process of creating a new key to match an existing key or compatible lock. Depending on the type of key and lock, different cutting methods may be required.

Key Extraction

If a key snaps inside a lock, a locksmith may need to carry out key extraction. This involves carefully removing the broken key without unnecessarily damaging the lock.

Lockout

A lockout occurs when you cannot access your property, for example because you’ve lost your keys, locked them inside, or have a problem with the lock. An emergency locksmith can help regain access where appropriate.

Lock Picking

Lock picking is a specialist technique used by trained locksmiths to manipulate the internal components of certain locks. It is one of several methods that may be considered when attempting to gain entry without damaging the lock.

Lock Bypass

A lock bypass involves gaining entry by using a method that operates or circumvents the locking system without necessarily damaging the lock. The method used depends on the type of door, lock, and circumstances.

Anti-Snap Lock

An anti-snap lock is designed to provide additional protection against lock snapping, a method of attack that can affect certain types of cylinders. Anti-snap cylinders are commonly considered as part of a home security upgrade.

British Standard Lock

A British Standard lock is a lock that meets specific standards for performance, security, and durability. You may see terms such as BS3621 associated with certain types of British Standard mortice locks.

uPVC Door Lock

A uPVC door lock is a locking system used on uPVC doors. These doors commonly use multipoint locking mechanisms and euro cylinders, although the exact configuration can vary.

Lock Replacement

Lock replacement means removing an existing lock or lock component and installing a new one. This may be recommended if a lock is damaged, worn, outdated, or if you want to improve your property’s security.

Lock Repair

A lock repair involves diagnosing and fixing a faulty lock or its components rather than automatically replacing the entire lock. Whether a repair is possible depends on the condition and type of lock.

Emergency Locksmith

An emergency locksmith provides locksmith assistance for urgent situations such as lockouts, broken keys, damaged locks, or burglary-related damage.

Still Unsure What You Need?

You don’t need to know the correct locksmith terminology before getting in touch. BN Locksmith Services can discuss the problem with you, explain your options in plain English, and advise on the most appropriate solution for your door or lock.

If you’re unsure whether you need a lock repair, lock replacement, emergency lockout service, or security upgrade, get in touch with BN Locksmith Services, and we’ll be happy to help.