Best Mortise Locks for Sliding Door of 2025

The MorningRo Sliding Door Lock offers a practical solution for those with old or damaged sliding door locks. Instead of replacing the entire door, you can conveniently replace the core lock with this economical option featuring a 45-degree keyway. Made from corrosion-resistant metal, it ensures durability and longevity. This versatile plug lock is suitable for various sliding patio doors, whether they are made of wood, aluminium, or vinyl. With easy installation requiring just a few simple tools, you can enhance your door's security in no time.

The TopHomer Sliding Door Lock offers robust security for various types of doors, including wooden, metal, and glass. Its zinc alloy construction and copper lock cylinder provide durability, ensuring long-lasting protection. This lock's unique design helps prevent unauthorised access, giving you peace of mind. Additionally, the sleek invisible handle enhances the aesthetic of your sliding doors while maintaining functionality, making it an excellent choice for any home.

The PRIME-LINE E 2013 Lock is designed for easy installation, allowing you to secure your sliding patio doors with minimal effort. It is compatible with doors made from wood, aluminium, and vinyl, ensuring versatility for various setups. The vertical keyway position enhances security when the lock is engaged. Additionally, the lock features specific mounting hole centres, making it essential to check your existing door dimensions before purchasing to guarantee a perfect fit.

The Gedotec Mortise Lock is designed for wooden sliding doors, making it an excellent choice for securing your living space. With a 50mm backset, it fits various door types, ensuring compatibility. The lock is prepared for profile cylinders, allowing you to choose keyed alike or different locking options, providing you with flexibility in security. Its robust stainless steel forend and strike plate enhance durability, ensuring that your lock withstands daily use while providing peace of mind.

The Gordon Glass Mortise Lock is an excellent choice for enhancing the security of your patio doors. It features a four-point locking system, providing robust protection against intruders. Designed specifically for vinyl doors, this lock ensures compatibility with various manufacturers, including Milgard. The lock uses a 7/32" square drive, making installation straightforward and convenient for users. With its die-cast metal construction and four locking hooks, you can enjoy peace of mind knowing your patio door is secure.

The LWZH Mortise Lock is a durable solution for securing sliding wooden doors. Made from zinc alloy with a silver anti-corrosion finish, it ensures long-lasting quality. The handle's dimensions make it suitable for various door thicknesses between 35mm and 50mm, providing versatility for your home. You can easily lock or bolt the door from the inside, while still being able to unlock it from the outside using a key, offering convenience and peace of mind.

The LWZH Pocket Door Lock is designed for easy installation on both left and right-hand doors, saving you time and effort. Its sturdy construction features a copper lock body and a silver brushed zinc alloy panel, ensuring durability and resistance to corrosion. This lock is versatile, suitable for various applications including bathroom doors and kitchen cabinets. With a pull handle that includes a thickened knob design, it offers enhanced usability and convenience for daily use.

The Easy Fix Mortise Lock is designed for easy installation with 9-15/16" mounting holes, making setup straightforward for users. Its enhanced security features a two-point locking system that provides superior protection against forced entry, ensuring your home's safety. The anti-slam button is a convenient addition, preventing damage to the lock if the door is accidentally closed. Additionally, accurate door alignment is achievable thanks to separate hook adjustments, which help you achieve a snug fit for optimal performance.

The KeyMet Hook Lock is a robust mortise lock designed for sliding doors and gates. Its galvanised finish provides excellent durability, ensuring long-lasting protection for your property. With a total length of 180 mm, it fits a variety of door sizes, giving you the flexibility you need. Weighing just 302 g, it is lightweight yet strong, making installation and use convenient. This lock comes without screws or a cylinder, allowing you to customise it to your specific requirements.

The QINAIXQM Pocket Door Lock is an excellent choice for enhancing privacy in your home. It features colour-coded indicators, allowing you to easily see whether the door is vacant or in use from a distance of up to 10 feet, making it perfect for bathrooms or bedrooms. The lock operates without keys, ensuring that you can secure your space effortlessly with a thumb turn button. In case of an emergency, you can quickly unlock it using a coin or flat metal piece. Additionally, its round recessed design makes installation simple and avoids the need for cutting notches in your door.