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5 Different Types of Keys

5 Different Types of Keys

Though often neglected, keys have played a major role in providing security and access to residential and commercial spaces. Irrespective of the complex nature of any security system, a key must be the first consideration in restricting access.

Therefore, it is beneficial for every home and business owner to understand the various types of keys available including the key replacement and installation processes. Relax, and read this article to learn about the five types of keys commonly used in both residential and commercial settings.

Traditional Pin Tumbler Keys

Traditional pin tumbler keys are the most common type of keys found in residential and commercial spaces. These keys operate locks with pins or tumblers that align when you insert the correct key. The key's unique cuts correspond to the pins' positions, allowing it to turn and unlock the door.

Some of the advantages of having a traditional pin tumbler key include:

  • Affordability and easy installation by a locksmith
  • They are compatible with a variety of lock types

However, some of its disadvantages include:

  • Vulnerable to picking and bumping.
  • Limited to a finite number of key combinations.

High-Security Keys

High-security keys are designed to provide extra layer of protection against unauthorized access. These keys often incorporate advanced features like restricted keyways and complex key profiles, making them difficult to duplicate or pick.


  • Enhanced resistance to picking and bumping.
  • Restricted key duplication for added security.
  • Ideal for protecting valuable assets.

Electronic Key Cards

Electronic key cards have become increasingly popular for both residential and commercial properties. These cards use magnetic stripes, RFID chips, or smart technology to grant access.

This type of key is easily programmable and customizable. You can conveniently grant temporary access as well as track log access. Not every locksmith can handle the key fob programming involved with the key cards. The experts at GreenPro Locksmith will always have your back for key replacement and programming needs.

Biometric Keys

If you want a highly secure key with the ability to give you quick and convenient access, then consider biometric keys. They are ideal for facilities with sensitive data or high-security requirements. Biometric keys utilize an individual's unique physical characteristics for access control. Common biometric keys include fingerprint and retina scanners.

Smart Keys and Mobile Apps

The advent of smart technology has given rise to electronic keys accessible through mobile apps. These keys often use Bluetooth or Wi-Fi connectivity to control locks remotely.

Smart keys are convenient, and flexible, with remote control and monitoring capabilities. They are ideal for property management and Airbnb rentals.


Security systems have evolved, and so are the locks and keys. Home and business owners can now have a wide range of key types available to select. The choice of which key type to use depends on the specific security needs and budget constraints of the property owner or manager.


Also, installation and programming have improved drastically. A dependable locksmith must have advanced tools and skills to work on these locks including the key fob programming process. Contact GreenPro Locksmith for all your locksmith needs. We will also help you make the right choice which could significantly enhance the security and convenience of your property.

Oct 22, 2023
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