Best Mortise Locks of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 31 Jan 2025

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Mortise locks are a type of lock that is commonly used in residential and commercial buildings. These locks are designed to be fitted into a mortise, which is a hole that is cut into the edge of a door. They are known for their durability and strength, as well as their ability to provide a high level of security. Mortise locks typically have a keyhole on the outside and a thumbturn on the inside, which allows for easy locking and unlocking from both sides of the door. With a variety of styles and finishes available, mortise locks are a popular choice for those looking for a reliable and secure locking option.

At a Glance: Our Top Picks

Yale 5 Lever Mortice Deadlock for External Doors Cover #TOP 1
Yale 5 Lever Mortice Deadlock for External Doors
ftb score rating icon 9.9
ERA Fortress 5 Lever Maximum Security Mortice Sashlock Cover #TOP 2
ERA Fortress 5 Lever Maximum Security Mortice Sashlock
ftb score rating icon 9.8
HeavenBird Mortise Lock for Wooden Gates Cover #TOP 3
HeavenBird Mortise Lock for Wooden Gates
ftb score rating icon 9.6

Top 10 Mortise Locks

Yale 5 Lever Mortice Deadlock for External Doors

B-M552-CH-65
Chrome Finish
2.5 Inch/64 mm
Yale 5 Lever Mortice Deadlock for External Doors Cover
Yale B-M552-CH-65 5 Lever Mortice Deadlock, Boxed, Suitable for External Doors, Polished Chrome, 2.5 Inch/64 mm

The Yale Mortice Deadlock is designed for wooden doors needing high security. Its robust 5 lever mechanism ensures enhanced protection against unauthorised access, giving you peace of mind. The polished chrome finish adds a touch of elegance, while the 2.5 Inch/64 mm backset makes it suitable for various types of external doors. Supplied with two standard Yale keys, you can easily manage access and order extra keys from a locksmith if needed. This combination of features makes it an excellent choice for securing your home.

What We Like
High security level
Elegant polished chrome finish
Suitable for external doors
Two keys included

ERA Fortress 5 Lever Maximum Security Mortice Sashlock

ERA
262-61A
Grey
ERA Fortress 5 Lever Maximum Security Mortice Sashlock Cover
ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Sashlock - Chrome Effect

The ERA Fortress Mortice Sashlock offers exceptional security for your home. Certified to BS3621, it meets insurance requirements, giving you peace of mind. Its 20mm anti-saw deadbolt, made from laminated hardened steel, ensures that any attempts to saw through it will be thwarted. Additionally, the hardened steel case plates resist drill attacks, adding an extra layer of protection. With a pick-resistant mechanism, you can feel confident that your property is safe from unauthorised access. This lock is perfect for anyone seeking reliable security for their doors.

What We Like
Insurance approved security
Resists saw and drill attacks
Pick resistant mechanism
Durable hardened steel construction
#TOP 3

HeavenBird Mortise Lock for Wooden Gates

02A01-2429
Black
70mm
HeavenBird Mortise Lock for Wooden Gates Cover
Mortise Lock, Long Throw Gate Lock for Wooden Gate, Double Sides Locking, 70mm, 5 Keys

The HeavenBird Mortise Lock is designed for 70mm thick wooden doors and gates, ensuring a secure fit for your entryways. Its double sides locking feature allows you to lock the gate from both sides, providing added convenience and security. Made from stainless steel, this lock is durable and resistant to the elements, perfect for outdoor use. Additionally, it is suitable for both right and left-hand doors, offering versatility for various installations.

What We Like
Durable stainless steel construction
Double sides locking mechanism
Suitable for various door types
Includes five keys

Yale 5 Lever Mortice Deadlock for External Doors

655620105025
Brass Finish
2.5 Inch/64 mm
Yale 5 Lever Mortice Deadlock for External Doors Cover
Yale British Standard 5 Lever Mortice Deadlock, High Security, Visi Pack, Suitable for External Doors, Brass Finish, 2.5 Inch/64 mm

The Yale Mortice Deadlock is an ideal choice for securing your external wooden doors. It meets the British Standard BS 3621:2007, ensuring maximum security for your home. This lock is also Secured by Design approved, giving you peace of mind. Additionally, it is recommended by insurance companies and the police, which can help you meet insurance requirements. With a stylish brass finish and a convenient 2.5 Inch/64mm backset, this deadlock not only enhances security but also complements your door's appearance.

What We Like
High security approval
Insurance company recommended
Suitable for external doors
Stylish brass finish
Two keys supplied

XFORT® 3 Lever Polished Chrome Mortice Sashlock

51.05.65
Polished Chrome
62mm
XFORT® 3 Lever Polished Chrome Mortice Sashlock Cover
XFORT® 3 Lever Polished Chrome Mortice Sashlock 62mm, Door Lock with Key for Internal and External Doors, Door Latch Mechanism and Key Locking Door Security, CE Approved and Fire Rated Protection.

The XFORT® Mortice Sashlock offers enhanced security with its solid brass latch and deadbolt, giving you peace of mind for your property. Its robust design is CE approved and has undergone EN1634-1 fire rate testing, ensuring safety in case of emergencies. The innovative ROTALATCH technology features a unique latch bolt reverse system, providing added convenience during operation. Additionally, this lock is versatile, suitable for both left and right-handed doors, making it ideal for various internal wooden door applications.

What We Like
Enhanced security features
Fire rated for safety
Unique latch technology
Versatile for different doors
Elegant polished chrome finish
#TOP 6

Yale 5 Lever Mortice Sashlock, Chrome Finish

B-M550-CH-65
Chrome Finish
2.5 Inch/64 mm
Yale 5 Lever Mortice Sashlock, Chrome Finish Cover
Yale 5 Lever Mortice Sashlock, High Security, Chrome Finish, 2.5 Inch/64 mm

The Yale Mortice Sashlock is designed for wooden doors requiring enhanced security. With its 5 lever mechanism, it offers a high level of protection, giving you peace of mind. The attractive chrome finish not only looks stylish but also complements your door. This lock comes with two standard Yale keys, ensuring you have spares when needed. For external doors, it is suggested to be used alongside a British Standard nightlatch, providing an extra layer of security for your home.

What We Like
High security level
Stylish chrome finish
Two keys included
Suitable for external doors
Easy key replacement
#TOP 7

ERA 472-61 Chrome Effect Deadlock for Doors

ERA
472-61
Chrome
ERA 472-61 Chrome Effect Deadlock for Doors Cover
Era 472-61 2.5-inch/ 64mm 3 Lever Deadlock - Chrome Effect

The ERA 472-61 Deadlock is a versatile locking solution ideal for your internal timber doors. With its key that withdraws the deadbolt from both sides, you will enjoy added convenience when entering or exiting. This lock is designed for both left and right-handed doors, ensuring compatibility with your existing setup. Importantly, it does not require any handles, making for a clean and simple installation that enhances the aesthetics of your doors.

What We Like
Key access from both sides
Suitable for left or right doors
No handles needed
Perfect for internal doors
Designed for timber doors
#TOP 8

3 Lever Polished Chrome Mortice Sashlock by Infinity Decor

LAL1450NP
Polished Nickel
2.5" / 65mm
3 Lever Polished Chrome Mortice Sashlock by Infinity Decor Cover
3 Lever Polished Chrome Mortice Sashlock 65mm, Door Lock with Key for Internal and External Doors, Reversible Catch, CE Approved and Fire Rated Protection - Infinity Decor®

The Infinity Decor Mortice Sashlock offers a robust solution for securing your internal and external doors. Made from high-quality iron, it ensures durability and long-lasting use. Its three-lever locking mechanism provides essential security, perfect for both homes and commercial properties. With fire-rated protection, this lock helps prevent the spread of fire for up to 30 minutes, enhancing safety. Additionally, the reversible catch allows for easy installation, making it user-friendly for anyone looking to upgrade their door security without professional help.

What We Like
High-quality iron construction
Fire-rated for safety
Easy installation process
Reversible catch for convenience
Elegant polished finish
#TOP 9

TSS High Security Mortice Sashlock with Keys

TSS
TSSBSMSL25C
Chrome
TSS High Security Mortice Sashlock with Keys Cover
TSS High Security 5 Lever British Standard Mortice Sashlock with 3 Keys and Fixings, 2.5" (68mm) Polished Chrome, Insurance Approved for External Doors, British Standard BS3621:2007

The TSS Mortice Sashlock offers robust security for external doors, being insurance approved and compliant with British Standard BS3621:2007. It comes with three keys and easy-to-follow fitting instructions, ensuring you can securely install it with minimal hassle. The lock features high-security anti-drill hardened steel plates, which protect against tampering and forced entry. Additionally, the inclusion of anti-saw rollers in the deadbolt enhances your safety by preventing saw attacks, giving you peace of mind in your home security.

What We Like
Insurance approved for external doors
High-security anti-drill plates
Preventative anti-saw rollers
Includes 3 keys and fixings
Easy to replace existing locks
#TOP 10

Yale P-M322-PB-65 3 Lever Deadlock Lock

650322105025
Brass Finish
2.5 Inch/64 mm
Yale P-M322-PB-65 3 Lever Deadlock Lock Cover
Yale Locks P-M322-PB-65 3 Lever Deadlock 65mm Lock case – Polished Brass Finish

The Yale P-M322 Deadlock is an excellent choice for securing your internal wooden doors. This 3 lever mortice lock offers a standard level of security, giving you peace of mind in your home. With its polished brass finish, it not only functions well but also adds a touch of elegance to your doors. The lock features a 2.5 Inch/64mm backset, making it a convenient fit for many door types. You will receive two standard Yale keys, ensuring you have spares when needed.

What We Like
Suitable for internal doors
Standard security level
Polished brass finish
Includes two standard keys
Easy to unlock from both sides
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is mortise lock?

A mortise lock (also spelled mortice lock in British English) is a lock that requires a pocket—the mortise—to be cut into the edge of the door or piece of furniture into which the lock is to be fitted.

2. When did they stop using mortise locks?

Two of the main differences between mortise locks and tubular locks are size and function. Additionally, each lock assembly type is made of up different parts to distinctly set them apart. Mortise locks were typically used before 1950, and tubular locks after 1950.

3. Is a mortise lock more secure than a deadbolt?

What makes mortise locks so much more secure than their cylinder counterparts? A pocket cut into the short edge of the door, allows a longer and thicker mortise box to slide into the door itself, providing superior protection.

4. What is the difference between a mortice lock and a deadlock?

The difference between a mortice deadlock and sash lock is that a mortice sashlock has a latch and bolt to open and close the lock. Where-as a mortice deadlock does not have a latch to open the lock.

Editor's Notes

During our mortise lock research, we found 163 mortise lock products and shortlisted 10 quality products. We collected and analyzed 26,972 customer reviews through our big data system to write the mortise locks list. We found that most customers choose mortise locks with an average price of £17.78.

The mortise locks are available for purchase. We have researched hundreds of brands and picked the top brands of mortise locks, including Yale, ERA, HeavenBird, XFORT, Infinity Decor.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.