SMR Locksmiths Ltd - Norbury and Streatham local locksmiths
South West London despatch point: 10 Cranbourne Close, Norbury, London, SW16 4NG

August 30, 2024

Lock Rekeying: what it is and when to rekey your locks

Lock rekeying is an essential aspect of home security and maintenance that many homeowners and property managers encounter at some point. It’s a process that, while simple in concept, holds significant implications for the safety and accessibility of a property. Understanding what lock rekeying is, why it might be necessary, and when it should be done can help ensure that your property remains secure without the need for costly lock replacements.

What is Lock Rekeying?

Lock rekeying involves changing the internal configuration of a lock so that it operates with a new key. It does not require replacing the lock mechanism; only the pins inside the lock cylinder are adjusted. Each pin within a lock corresponds to a specific key cut, and rekeying changes the arrangement of these pins so that the old key no longer works, and a new key must be used instead.

This process is different from replacing locks entirely, which involves removing the entire lock system from the door and installing a new one. Lock Rekeying is typically less expensive and more convenient than replacing a lock, especially when the lock itself is still in good condition but security needs have changed.

Rekeying can be done by a professional locksmith or, with the right tools and knowledge, by the property owner. It usually involves removing the lock cylinder from the door, disassembling it to access the pins, rearranging the pins or replacing them with new ones, and then reassembling and reinstalling the cylinder. Once this is done, the lock will only open with a newly cut key that matches the new pin configuration.

When Should You Rekey Your Locks?

There are several scenarios in which rekeying your locks is advisable. Some of these situations are driven by concerns over security, while others are prompted by practicality or convenience.

After Moving into a New Home

One of the most common times to rekey locks is after moving into a new home. Even if the previous owners have turned over all their keys, there is no way to be certain how many copies might be in circulation. Contractors, cleaners, real estate agents, or previous tenants could have spare keys. Lock Rekeying ensures you have full control over who can access your new home, providing peace of mind that only those you trust can enter.

Following a Security Breach or Lost Key

If you have lost a key or experienced a break-in, rekeying your locks is crucial. A lost key could fall into the wrong hands, and even if a break-in did not involve the use of a key, lock rekeying ensures that any potential theft of keys does not lead to future breaches. Additionally, lock rekeying after a burglary can restore a sense of security, allowing you to feel safe in your home again.

When Keys Change Hands Frequently

For rental properties, rekeying locks between tenants is a good practice. Even if tenants return their keys, there’s no guarantee that copies haven’t been made. Rekeying locks ensures that each new tenant starts with a unique key, reducing the risk of unauthorised access by previous tenants. Similarly, businesses may choose to rekey locks when employees with access to key areas leave the company, particularly if they left under unfavourable circumstances.

After Completing Renovations

During renovations, contractors and workers might need access to your property. While you might trust the professionals you hire, there is always a risk that keys could be misplaced or copied. Once the work is complete, lock rekeying ensures that any keys handed out during the project are no longer valid, keeping your home secure.

Consolidating Multiple Locks

Homeowners or businesses with multiple locks might find themselves juggling several keys. In some cases, lock rekeying can allow all the locks to be operated by a single key. This process, known as “keying alike,” simplifies access and reduces the need to carry multiple keys. It’s a practical solution for those looking to streamline security without compromising it.

What Kinds of Locks Can Be Rekeyed?

Not all locks are created equal, and their ability to be rekeyed depends on the type of lock and its design. Understanding which types of locks can be rekeyed is crucial for planning your security strategy effectively.

Pin Tumbler Locks

Pin tumbler locks are the most common type of locks found in residential and commercial properties, and they are typically the easiest to rekey. These locks use a series of pins of different lengths to prevent the lock from opening without the correct key. During lock rekeying, the pins inside the cylinder are replaced or rearranged to match a new key. Most deadbolts, knob locks, and lever handle locks fall under this category and can be easily rekeyed by a professional locksmith or with a rekeying kit.

Wafer Tumbler Locks

Wafer tumbler locks, commonly found in vehicles and some furniture, operate on a principle similar to pin tumbler locks but use flat wafers instead of pins. These locks can also be rekeyed, though the process might be slightly different due to the design of the wafers. Wafer tumbler locks are less common in residential settings but are still widely used in certain applications.

Lever Handle Locks

Lever handle locks are often used in commercial settings and sometimes in residential buildings. These locks use a lever mechanism instead of a knob or keyhole. They can be rekeyed if they employ a pin tumbler or wafer tumbler system within their locking mechanism. Lever handle locks that do not use these systems may require a different approach, such as replacing the lock entirely if rekeying is not feasible.

Euro Cylinder Locks

Euro cylinder locks are commonly found indoors across Europe and in some modern homes worldwide. These locks are popular for their modular design, which allows for easy replacement of the cylinder if needed. Rekeying a Euro cylinder lock is possible and relatively straightforward, as the process typically involves removing the cylinder and adjusting the pins inside. Because of their widespread use, Euro cylinder locks are a common choice for rekeying in both residential and commercial properties.

Smart Locks

Smart locks are increasingly popular due to their convenience and advanced features, such as keyless entry and remote access. However, the lock rekeying process for smart locks can vary significantly depending on the model. Some smart locks are designed with traditional keyways and can be rekeyed just like a standard pin tumbler lock. Others may require digital reprogramming rather than physical rekeying. For smart locks that do not have a traditional keyway, the rekeying process might involve resetting the digital code or updating the software, rather than manipulating physical components.

High-Security Locks

High-security locks, such as those used in government buildings or high-end commercial properties, are designed with enhanced security features that make them more resistant to picking and drilling. These locks often use complex keyways and may include additional security mechanisms, such as sidebars or rotating discs. Rekeying high-security locks is typically more challenging and may require specialised tools or expertise. In many cases, only authorised locksmiths with proper credentials can rekey these types of locks, and the process can be more expensive and time-consuming than rekeying standard locks.

Master Key Systems

Master key systems are often used in buildings where different levels of access are required, such as hotels, offices, or apartment complexes. These systems allow for a hierarchy of keys, where one master key can open multiple locks, but individual keys only open specific locks. Rekeying a lock within a master key system is possible but requires careful planning to ensure that the rekeyed lock still fits within the overall key hierarchy. Because of the complexity of these systems, rekeying a master key lock is best left to professional locksmiths who are familiar with the specific master key configuration.

lock rekeying

The Process and Cost of Rekeying

Rekeying locks is generally less expensive than replacing locks, making it an attractive option when security needs change. The cost of rekeying can vary depending on the type of lock and the locksmith’s service charges. Typically, the process involves a service fee, plus a charge for each lock that needs rekeying. For homeowners who are comfortable with DIY tasks, lock rekeying kits are available for purchase, which can further reduce costs.

While rekeying is a relatively straightforward process, it’s crucial to ensure it’s done correctly. A poorly rekeyed lock can result in keys that work intermittently or not at all, potentially leaving you locked out of your own home. For this reason, many people prefer to hire a professional locksmith, who can guarantee that the work is done to a high standard.

Advantages of Rekeying Over Replacing Locks

There are several advantages to lock rekeying as opposed to replacing locks. First, rekeying is more cost-effective. Since the process only involves changing the internal pins rather than replacing the entire lock mechanism, it’s usually much cheaper. This is particularly beneficial when you need to rekey multiple locks at once.

Second, rekeying is quicker and less disruptive than replacing locks. It doesn’t require any major changes to the door or lock installation, so there’s no need to worry about damage to your property or extensive work being done. A locksmith can typically rekey a lock in a matter of minutes, making it a convenient option for busy homeowners or businesses.

Another advantage is that lock rekeying allows you to maintain the aesthetic of your existing locks. If you’ve invested in high-quality or decorative locks that match your home’s design, rekeying lets you keep the same look while updating your security. This is especially important for older homes where finding matching replacement locks could be challenging.

Considerations When Rekeying Locks

While lock rekeying is a valuable security tool, it’s important to consider a few factors before deciding to rekey your locks. One consideration is the condition of the existing locks. If your locks are old, damaged, or of poor quality, rekeying might not be the best solution. In such cases, replacing the locks entirely with newer, more secure models could be a better investment in your home’s security.

Another consideration is the type of lock you have. Not all locks are easily rekeyed, and some high-security locks might require specialised tools or skills. For example, electronic or smart locks may have different procedures for lock rekeying, or they might need to be reset rather than physically rekeyed. It’s essential to consult with a professional locksmith to understand the options available for your specific locks.

Finally, consider your long-term security needs. If you anticipate needing to rekey frequently, investing in locks that are designed for easy lock rekeying might be worthwhile. Some locks come with features that allow the owner to rekey them without disassembling the lock, providing a convenient option for those who need to change keys regularly.

lock rekeying

The Role of Rekeying in Overall Security Strategy

Rekeying should be seen as part of a broader home or business security strategy. While it is an effective way to control access and ensure that only authorised individuals have keys, it is not a substitute for other security measures. Good security involves a multi-layered approach that includes physical locks, alarms, surveillance, and awareness of who has access to your property.

In addition to lock rekeying, consider the overall security of your home or business. Are the locks on your doors and windows of high quality? Do you have security cameras or alarm systems in place? Are there other points of entry, such as garage doors or back doors, that need to be secured? Rekeying is just one part of ensuring that your property is as secure as possible.

Furthermore, it’s essential to maintain a habit of regularly reviewing your security measures. As time passes, situations change, and your security needs might evolve. Periodically assess who has access to your property and whether any locks need to be rekeyed to reflect changes in your household or business.

Lock rekeying is a practical, cost-effective way to maintain the security of your home or business. Whether you’ve just moved into a new property, lost a key, or simply want to ensure that only trusted individuals have access, rekeying offers peace of mind without the need for expensive lock replacements. By understanding when and why to rekey your locks, you can take proactive steps to protect your property and those within it.

As part of a comprehensive security strategy, lock rekeying plays a crucial role in safeguarding your home or business. It is a simple yet effective method for controlling access and preventing unauthorised entry. By staying informed and vigilant about your security needs, you can ensure that your locks—and your property—remain secure.

Recent posts
myths feature

Common myths about locksmithing debunked

Locksmithing is an essential yet often misunderstood profession. Over the years, myths and misconceptions have developed about locksmiths, their tools, and their work. These misunderstandings can create unnecessary fear, distrust,…
Read more

There is no call out charge and no hourly fee

You only pay the price quoted - Call your local locksmith now

SMR Locksmiths Ltd - Norbury Streatham logo footer
MLA approved license no: 003927
We are the local locksmith company you can trust, registered, DBS checked, used and recommended by the police, housing associations and local councils.
Recommended and used by Metropolitan Police
Company
Local dispatch point
10 Cranbourne Close
Norbury, London
SW16 4NG
Working hours
Monday - Friday: 7.00am - 8.00 pm
Saturday: 7.00am - 3.00 pm
Sunday: Closed
Let's talk locks
Our profile at MLA
MLA logo small
We accept all major credit card types
visa card small
master card card small
maestro card small
Leave a review on Trustpilot
truspilot white logo
Leave a review on Google
google reviews white logo
Leave a review on Checkatrade
checkatrade white logo
© 2010-2024 SMR Locksmiths Ltd. London UK. All rights reserved.
Webdesign by: www.produktfinalny.pl
See our reviews on