Back to Blog

Changing a Commercial Storefront Door’s Key Cylinder: Security and Peace of Mind for Your Business

June 3, 2024
Featured image for “Changing a Commercial Storefront Door’s Key Cylinder: Security and Peace of Mind for Your Business”

Running a business comes with a lot of responsibility, and ensuring the security of your storefront is paramount. A secure key system is a crucial part of that security. Whether you’ve lost keys, experienced a break-in, or simply want to update your locks for better protection, knowing how to change a commercial storefront door’s key cylinder can be incredibly useful.

This guide from Karas Locksmiths, Melbourne’s trusted locksmith provider, will walk you through the process of replacing a commercial key cylinder, offering valuable tips and insights to ensure a smooth and secure transition.

Understanding Key Cylinders

Before diving into the replacement process, let’s understand what a key cylinder is and its role in your commercial door’s security. The key cylinder is the core component of a lockset. It’s the part that interacts with your key, containing pins and springs that determine whether the key allows the lock to turn. When you insert the correct key, the pins align, allowing the cylinder to rotate and unlock the door.

Reasons to Change Your Key Cylinder

There are several reasons why you might need to change your commercial storefront door’s key cylinder:

  • Lost Keys: This is a common scenario. If you’ve lost keys, it’s crucial to replace the cylinder to prevent unauthorised access.
  • Employee Turnover: When employees leave the company, it’s a security best practice to change the locks, especially if they had access to sensitive areas.
  • Security Breach: If you’ve experienced a break-in or suspect someone has gained unauthorised access to your key system, replacing the cylinder is essential to regain control.
  • Upgrading Security: Technology in the security industry constantly evolves. Upgrading your key cylinders to a more secure option, like high-security cylinders, can provide better protection against potential break-ins.

Signs You Need a New Key Cylinder

Here are some signs that might indicate it’s time for a key cylinder replacement:

  • Difficulty Inserting or Turning the Key: This could be due to wear and tear, damage, or misalignment.
  • Loose or Wobbly Knob or Handle: This can be a sign of a failing internal mechanism within the cylinder.
  • Visible Damage: If the cylinder shows signs of physical damage, such as scratches or cracks, it might be compromised and require replacement.

Benefits of Hiring a Professional Locksmith

While replacing a commercial key cylinder might seem like a straightforward task, there are several advantages to hiring a professional locksmith:

  • Expertise: Locksmiths have the knowledge and experience to handle various lockset types and complexities. They can ensure the replacement is done correctly and efficiently.
  • Security Assessment: A professional locksmith can assess your overall security needs and recommend the most suitable key cylinder type for your business.
  • Master Key Systems: As mentioned earlier, locksmiths are proficient in handling master key systems and can ensure a seamless replacement without compromising the system’s functionality.
  • Time Efficiency: For business owners, time is valuable. A locksmith can complete the replacement quickly and minimise downtime.
  • Peace of Mind: Knowing your commercial property is secured with a properly installed key cylinder provides invaluable peace of mind.


Maintaining a secure storefront is essential for any business. By understanding your key cylinder and knowing when to replace it, you can take proactive steps to safeguard your property and valuables.

For a guaranteed secure and efficient process, consider contacting Karas Locksmiths. Our experienced technicians are readily available 24/7 to assist you with all your commercial lock needs, ensuring your business remains protected.

Call Karas Locksmiths today for a free consultation!



Mobile Phone or Landline
Email Address(Required)
Drop files here or
Accepted file types: jpg, png, jpeg, Max. file size: 7 MB, Max. files: 2.
    This field is for validation purposes and should be left unchanged.