Door Locks & Latches
As a trusted ironmongery supplier, Quest stocks a comprehensive range of door locks and latches for interior and exterior timber doors. Whether your project calls for security, privacy, or accessibility, our range includes rim locks, mortice sashlocks, mortice deadlocks, night latches, tubular latches, mortice latches, privacy thumb turns, bathroom locks, and more.

From toilet indicator bolts and front door locks to single and double euro cylinders and door bolts, we supply external door locks and internal hardware from reputable brands to suit every application – helping you strike the right balance between home security and everyday convenience. If you need guidance, our team is ready to provide expert advice to help you make the right choice.
Looking for multipoint door locks? Our Reliance multipoint locks include single-door locks, French door locks and stable door locks that provide enhanced security and smooth operation for modern entrance doors and sliding door systems.
How to choose the right door lock or latch
Not every door needs the same level of security. The right choice comes down to where the door sits in the property, how it’s used day to day, and what your customer’s home insurance policy requires.
Choosing by door type
Internal doors carry a low security risk, so a basic spring-loaded or tubular latch is usually enough to hold the door closed without needing a key. External doors are a different job entirely – wooden front doors commonly suit mortice deadlocks, sashlocks, or rim locks, while uPVC doors often need a multipoint locking system rated against forced entry.
Choosing by room
Room use matters as much as door type. Deadbolt latches enhance security and privacy for bathroom doors, giving occupants a quick, key-free way to lock themselves in without compromising on safety.


Security ratings & insurance compliance
British Standard BS3621 is often required by UK home insurance providers for final exit doors, so it’s worth checking this rating before specifying a lock for a front or back door. A BSI Kitemark gives further assurance that a cylinder lock has been tested for resistance against snapping, picking, and drilling.
One point worth flagging on commercial and rented properties: locks that require a key to exit should be avoided on fire escape doors, as they risk trapping occupants in an emergency.
Types of door locks
Quest stocks locks and latches to suit every door in the property, from lightweight internal hardware to heavy-duty external security.
Tubular latches
A tubular latch is commonly used for internal doors, fitted through a bored hole in the door face rather than a cut mortice pocket. Because tubular latches require a mortice cut for the striking plate rather than the whole latch body, they’re generally quicker and cheaper to install than a full mortice lock.
Mortice latches & locks
Mortice locks are suitable for front doors and external entrances, sitting fully within the door itself for a stronger, more tamper-resistant fixing. Deadbolt latches with a BS3621 rating add a further layer of enhanced security here, and are the type most UK insurers expect to see on a final exit door.
Rim locks & night latches
Night latches – also known as Yale locks – are surface mounted on the interior face of the door rather than set into it, making them a popular retrofit option. They should only ever be used as supplementary security alongside a mortice deadlock, never as the sole lock on an external door.

Locks vs latches: What's the difference?
It’s a question we get asked often, and the distinction is simple once you know.
A latch keeps a door closed without providing any security – it’s a mechanism, not a barrier to entry. A lock includes a latch, plus a separate locking function, usually operated by a key or thumbturn, that engages a bolt to actually secure the door.
Key-operated locks simplify access while providing security without the need for a power source, which is why they remain the standard for most homes and small businesses. As a rule of thumb: internal doors often use simple tubular latches, while front doors typically use a locking mortice or cylinder system.
Why choose Quest for door locks and latches?
With over 35 years’ experience supplying ironmongery to the trade, we offer a wide selection of door locks and latches in durable materials and a range of finishes – including brass, chrome, and black – to match any project or property style, here at Quest.
Thousands of lines are held in stock for fast turnaround, with trade pricing available for registered account holders. Whether you’re specifying hardware for a single domestic front door or fitting out a run on a commercial job, our team is on hand to help you choose the right lock for the application.
Get in touch today, or order online by 4pm (Monday-Friday) for convenient next-working-day delivery.