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Everything you need to know about door lock replacement

Different Types of Door Locks

Understanding the various types of door locks is essential in selecting the right lock for your needs. Here are five common door lock types:

1. Deadbolts

Deadbolts are the most common type of lock used for external doors in homes and businesses. They offer a high level of security due to their solid bolt, which extends into the door frame.

Deadbolts come in single-cylinder and double-cylinder variants, with the latter requiring a key on both sides for operation.

2. Mortise Locks

Mortise locks are popular in commercial and residential properties and feature a latch and a deadbolt. They are installed inside the door, with only the faceplate visible.

Mortise locks are considered more secure than deadbolts due to their robust construction and multiple locking points.

3. Knob Locks

Knob locks are commonly used for interior doors, such as bedrooms and bathrooms. They feature a locking mechanism inside a doorknob and are typically less secure than deadbolts or mortise locks.

They can be easily forced open with a wrench or other tools and should not be used as the primary lock on an external door.

4. Euro Cylinder Locks

Euro cylinder locks are widely used in Europe and have become increasingly popular in the UK. These locks feature a cylinder that can be easily replaced without changing the entire lock.

Euro cylinder locks are commonly used in uPVC doors and offer a good level of security when combined with a multi-point locking system.

5. Smart Locks

Smart locks are a modern and increasingly popular option that allows users to control access to their property via smartphone apps, keypads, or biometric readers.

They can be integrated into a smart home system and provide enhanced security features, such as remote monitoring and access control.

When to Replace a Door Lock

There are several reasons why you might need to replace a door lock, including the following:

  • Signs of Wear and Tear

Over time, door locks can become worn, making them less secure and more challenging to operate. If you notice difficulty in turning the key, a loose or wobbly lock, or visible damage to the lock, it’s time to consider a replacement.

  • Lost or Stolen Keys

If your keys have been lost or stolen, it’s essential to replace your door lock to ensure your property’s security. Even if you retrieve your lost keys, there’s no guarantee that someone hasn’t made a copy, leaving your home or business vulnerable.

  • Security Upgrades

Upgrading to a more secure lock can provide added protection for your property. If you have concerns about the current security of your lock or have experienced a break-in, it’s wise to invest in a more robust, high-security lock.

  • Moving into a New Property

When moving into a new home or commercial property, it’s essential to replace the door locks to ensure you’re the only one with access. Previous occupants or their acquaintances might still have copies of the keys, posing a security risk.

The Process of Door Lock Replacement

Here’s an overview of the process involved in replacing a door lock:

  • Assessing Your Current Lock

Before purchasing a new lock, it’s important to assess your current lock to determine the type and size you need.

Measure the lock’s dimensions and make a note of any brand names or model numbers. If you’re unsure about the type of lock, consult a professional locksmith for advice.

  • Choosing the Right Replacement Lock

With the information about your current lock, you can now choose the right replacement. Consider the level of security you require and the type of door and lock that best suits your needs.

You might want to upgrade to a higher-security lock or opt for a smart lock with additional features.

  • DIY or Professional Installation?

Door lock replacement can be a DIY project for those with the necessary skills and tools, but many people prefer to hire a 24/7 locksmith.

A locksmith can ensure the lock is correctly installed, provide advice on the best lock for your needs, and guarantee the work for added peace of mind.

Tips for Choosing the Right Door Lock

Selecting the right door lock can be challenging, but these tips will help you make an informed decision:

Consider Your Security Needs

Evaluate your property’s security requirements and choose a lock that meets those needs. High-security locks, such as deadbolts and mortise locks, offer greater protection than knob locks or standard cylinder locks.

Match Your Door’s Style

Choose a lock that complements the style of your door and the overall aesthetics of your property. There’s a wide range of lock designs and finishes available, so you’re sure to find one that suits your tastes.

Balance Price and Quality

While it’s essential not to compromise on security, you should also consider your budget when selecting a door lock.

High-quality locks can be more expensive, but they typically offer better protection and a longer lifespan. Look for reputable brands and read reviews to find a lock that provides the best value for money.

Assess Your DIY Skills

If you plan to replace the lock yourself, make sure you have the necessary skills and tools to complete the job correctly.

Some locks are more challenging to install than others, so assess your abilities before attempting a DIY installation. If you’re unsure about your skills, it’s best to hire a local locksmith.


Door lock replacement is an essential aspect of maintaining the security of your home or commercial property.

By understanding the different types of locks available, knowing when it’s time to replace a lock, and following the tips provided in this guide, you can ensure your property remains secure and protected.

Whether you choose to tackle the project yourself or hire a professional locksmith, replacing a worn or outdated lock is an investment in your safety and peace of mind.