Commercial Mortise Lock Replacement

outdoor retail shops

When it comes to securing your commercial property, one of the most important elements is the lock system. A reliable and durable lock ensures the safety and security of your premises. Commercial mortise lock replacement is a crucial aspect of maintaining a secure facility. In this article, we will explore the benefits of mortise locks, the process of replacing them, and answer frequently asked questions.

Understanding Mortise Locks

Mortise locks are commonly used in commercial settings due to their superior strength and stability. Unlike regular cylindrical locks, mortise locks are designed to fit into a mortise pocket inside the edge of the door. This makes them highly resistant to forced entry and provides enhanced security.

The Process of Commercial Mortise Lock Replacement

If you are considering replacing your commercial mortise locks, it is essential to understand the steps involved. Here is a simplified breakdown of the process:

  1. Assessment of lock condition: A professional locksmith will inspect your existing locks and assess their condition.
  2. Selecting the right replacement parts: Based on the assessment, the locksmith will determine the appropriate replacement parts and hardware for your specific needs.
  3. Removal of old lockset: The existing mortise lockset will be carefully removed from the door.
  4. Installation of new lockset: The new mortise lockset will be fitted into the mortise pocket of the door.
  5. Testing and adjustment: The lock will be thoroughly tested to ensure proper functioning, and any necessary adjustments will be made.
  6. Final inspection: The locksmith will conduct a final inspection to confirm that the new lock is secure and operating smoothly.

Frequently Asked Questions

Can a mortise lock be replaced?

Yes, mortise locks can be replaced, and it is essential to hire a professional locksmith for the job to ensure proper installation and security.

How much does it cost to change a commercial lock?

The cost of commercial lock replacement can vary depending on factors such as the type of lock, the complexity of the installation, and the hardware required. It is recommended to contact a locksmith for an accurate cost estimate.

Are all mortise locks interchangeable?

Not all mortise locks are interchangeable. Each lock is designed for specific door dimensions and hardware compatibility. It is crucial to consult with a professional locksmith to ensure you select the right replacement lock.

Are commercial door locks different?

Yes, commercial door locks differ from residential locks in terms of strength, durability, and security features. Commercial locks are specifically designed to withstand high traffic and potential security threats.

Is a mortise lock better than a normal lock?

Mortise locks are often considered superior to normal locks due to their robust build and resistance to entry techniques such as lock picking or forced entry. They provide an added layer of security for commercial properties.

What are the disadvantages of a mortise lock?

While mortise locks offer significant advantages, there are a few potential drawbacks. One is the higher cost compared to standard locks. Additionally, installation may require more time and expertise, often necessitating professional help.

What is the most commonly used commercial lock?

Among commercial locks, mortise locks are widely regarded as the most commonly used due to their durability and enhanced security features. They are preferred for high-traffic areas such as office buildings, hospitals, and educational institutions.

Why are mortise locks so expensive?

Mortise locks tend to be more expensive due to their superior build quality, complexity of the mechanisms, and the level of security they offer. The investment in a commercial mortise lock is worth it for the added protection and peace of mind.

What are the different types of mortise locks?

There are various types of mortise locks available, including classroom function, office function, store function, and privacy function. Each serves a specific purpose and offers unique features and capabilities.

What is the difference between a mortise and a lockset?

The primary difference between a mortise lock and a lockset lies in their installation method. A mortise lock requires a pocket or cavity to be created in the door, while a lockset is surface-mounted.

What are the different types of mortise locksets?

Mortise locksets come in various configurations, including single cylinder, double cylinder, classroom, storeroom, and entry. Each type is designed to suit specific security requirements and operational needs.

What is a storeroom mortise lock?

A storeroom mortise lock is a type of commercial lock commonly used in storage areas or spaces that require restricted access. It allows the door to be locked at all times, requiring a key to gain entry.

What is a commercial door lock called?

A commercial door lock is commonly known as a mortise lock. It is designed to be robust, secure, and durable, making it suitable for high-traffic commercial environments.

What is a mortise door lock?

A mortise door lock refers to a type of lock that is designed to fit into a mortise pocket or cavity inside the door. It offers enhanced security and is commonly used in commercial buildings.

How do you change a cylinder on a commercial door lock?

To change the cylinder on a commercial door lock, follow these steps:

  1. Remove the retaining screw securing the cylinder to the lock body.
  2. Slide the old cylinder out of the lock.
  3. Insert the new cylinder into the lock body.
  4. Tighten the retaining screw to secure the new cylinder in place.
  5. Test the functionality of the lock to ensure proper installation.

How do I know what cylinder lock I need?

Determining the appropriate cylinder lock depends on factors such as the type of door, the level of security required, and the manufacturer's specifications. It is advisable to consult with a professional locksmith for accurate guidance.

Are door lock cylinders interchangeable?

Door lock cylinders are often interchangeable within a specific brand or lock series. However, compatibility may vary between different lock manufacturers. It is best to consult the manufacturer's documentation or a professional locksmith for guidance.

Are there different types of mortise locks?

Yes, there are different types of mortise locks available, including deadlocks, sashlocks, bathroom locks, and cylinder deadlocks. Each type offers unique features and functionality to suit various security needs.


Commercial mortise lock replacement is a vital task to ensure the security and integrity of your business premises. By understanding the benefits and considerations associated with mortise locks, as well as the process of replacing them, you can make informed decisions to protect your property. Remember to consult with a professional locksmith for expert guidance and to ensure a successful lock replacement. Invest in high-quality lock products and prioritize the safety of your commercial space.

Get your free quote

Contact now