In this guide we’ll take a look at the best mortice deadlocks for the UK market.
We’ve compared lock type, finish colour, number of included keys and cost
to give you our top recommendations.
What is the Best Mortice Deadlock?
More Detailed Mortice Deadlock Reviews
Yale P-M560-CH-67 5 Lever Mortice Sashlock Review
The Yale P-M560-CH-67 is the best mortice deadlock because it has the best security rating available and the latch can be easily reversed. Yale are arguably the biggest household name when you think of a mortice lock, and they produce a brilliant 5 lever mortice lock for doors up to 44 mm thick.
This is a serious 5 lever deadlock built to withstand intruders with clever anti-hacksaw and anti-lockpick technology inside the case. The door lock mechanism can be operated from both sides of the door and is Police Secure by Design and recommended by home insurers for being a safe mortice sash lock.
Union Locks 2242 2 Lever Mortice Rebated Sash Lock Review
Operating for nearly 200 years and constantly improving on the best 5 lever mortice deadlock, Union are well respected for producing door lock mechanisms for any type of door you can think of. The 2242 mortise lock is one of their most secure sash locks, and it’s easy to install into doors as thick as 54 mm.
The easily reversible sash lock means you can fit this locking mechanism to doors that open to the left or the right without any trouble at all. With an 11 mm solid aluminium deadlock bolt, it’s a home insurance compliant security lock that’s ridiculously hard to break into, yet easy to install.
ERA Fortress 5 Lever Maximum Security Mortice Sashlock Review
With 5 levers of mortise lock to keep you safe, British lock experts ERA have created a fortress door lock mechanism that will resist sawing and picking without hurting your wallet. Made from laminated hardened steel, the 5 Lever Maximum Security Mortice Sashlock is the best mortice deadlock for external timber and composite doors.
Complying to BS 3621 standards means this five lever mortice deadlock has been tested against common burglary techniques and has a door lock mechanism that is recommended by home insurers. To top it off, the bolt travels 20 mm into the locking mechanism for even more security.
Union Locks 3G114E 5-Lever Mortice Deadlock Review
If you’re looking for the best 5 lever mortice deadlock, but you don’t need a sash lock, the Union Locks 3G114E is the best security lock for you. Union have made a light and slimline unit that can generate up to 1000 key variations, making it an effective 5 lever deadlock for all external doors.
The door lock mechanism has been hardened and offers supreme protection against picking and drilling, and the size of the unit makes it a perfect replacement for old 2 lever Chubb mortice locks. Plus, they provide you with three keys to save you a trip to a locksmith.
Yale P-M562-PB-67 5 Lever Mortice Deadlock Review
The Yale P-M562-PB-67 is a 5 lever deadlock designed for maximum security without a sashlock. Featuring a hardened steel lock case and locking mechanism with anti-drill plates, it’s an effective and safe 5 lever lock from one of the biggest names in the business.
Conforming to BS 3621:2007, this deadlock bolt is as secure as it gets and performs well as security lock for external doors throughout your home or business. What makes this the best 5 lever mortice deadlock is the finish- the polished brass faceplate makes it a mortice lock that’s good looking as well as secure.
ERA Fortress 5 Lever Maximum Security Mortice Deadlock Review
Strong, secure and robust, this ERA fortress five lever mortice deadlock is a security lock for external doors with a door lock mechanism guaranteed to exceed BS 3621 standards. Supplied with everything you need to upgrade your existing 5 lever deadlock- all you need is a sharp chisel and a screwdriver.
With a laminated steel deadlock bolt and hardened steel plates to protect the locking mechanism, this mortise lock is almost impossible to attack with a drill or hacksaw, making it an effective security lock to stop intruders. It’s an inexpensive lock that includes premium mortice lock features.
Mortice Deadlock Buyer’s Guide
Securing your home against intruders doesn’t have to be difficult if you’ve got the best mortice deadlock to hand. Hardened against all sorts of attacks, 5 lever deadlocks provide door lock mechanisms that are built to last.
Two types of deadlock
The best mortice deadlock comes in two main types. Both are high security locks, but the locking mechanism in sash locks includes a latch that will keep the door shut without it being locked. A standard deadlock bolts shut only.
How it’s made
The best 5 lever mortice deadlock is built to be hard to break into. Manufacturers use hardened steel plates, often laminated together to make mortise locks difficult to drill through or pry apart. The door lock mechanism itself may contain rollers to resist sawing and several anti-pick devices.
Left- or right-hand opening
If you plan on replacing an existing 5 lever deadlock or installing a new mortice sash lock, you need to consider what way your door opens because the latch only works in one direction. Luckily, the best mortice deadlock will have an easily reversible latch system.
Even though a lot of mortise locks and sash locks are labelled as standard sizes of 64 mm and 76 mm, the door lock mechanism and sashlock body are often slightly different. You need to carefully measure the existing mortice sash lock to ensure a good fit for the new locking mechanism and expect to enlarge the openings in your door with a sharp chisel if you must.
The best 5 level mortice deadlock set will come with everything you need to install or replace an existing 5 lever lock- the locking mechanism itself, face plate, striker and two or three keys.
BS Security Standard
When you buy a new mortice lock, look out for the BS 3621 certification. It means that your door locking mechanism complies with home insurance policies for security locks.
Securing your home or business against intruders requires security locks, and the best mortice deadlock will keep even the most determined burglar at bay. Whether you opt for a 5 lever deadlock or a sash lock, any of the locks on our list will do, but the best 5 lever mortice deadlock is the outstanding Yale P-M560-CH-67. It comes from a name you trust and conforms to the highest security locking mechanism standards.