Rekeying a lock is a common yet critical task for homeowners, renters, and business owners alike. Whether you’ve moved into a new property, lost your keys, or are consolidating access across multiple locks, rekeying offers a cost-effective and secure solution. A frequent question asked by those considering this service is: How long does it take a locksmith to rekey a lock?
In this in-depth guide, we’ll explore everything you need to know about the rekeying process, including how long it typically takes, what factors influence the duration, and how to choose the best locksmith for the job. We’ll also explain what rekeying involves, compare it to lock replacement, and offer tips to help streamline the process.
What Does Rekeying a Lock Mean?
Before we dive into timing, let’s clarify what rekeying a lock actually entails. Rekeying refers to the process of mechanically altering the internal components of a lock so that the existing key no longer works while the new key does. This is different from replacing the entire lock.
Rekeying typically involves replacing the internal pins within the lock’s cylinder. These pins are arranged in a specific configuration that matches the grooves and ridges of your key. By changing this configuration, you effectively create a new key that operates the same lock without the need to swap out the entire hardware.
Rekeying is a cost-efficient way to maintain security when access to the key has been compromised or lost. It’s also popular among landlords and property managers who want to ensure that prior tenants no longer have access to the premises.
How Long Does It Take to Rekey a Lock? A General Overview
The time required to rekey a lock depends on several factors, including the type of lock, its condition, and the skill level of the locksmith. However, in most cases, rekeying a standard pin tumbler lock takes between 10 to 30 minutes per lock.
Let’s break this down a bit more:
- Single standard door lock (e.g., Kwikset, Schlage): 10–15 minutes.
- Deadbolt lock: 15–25 minutes.
- High-security lock (e.g., Medeco, Mul-T-Lock): 20–30 minutes.
- Multiple locks being rekeyed to the same key: 10–15 minutes per additional lock.
These time estimates are for experienced, professional locksmiths using the proper tools and replacement pins. Inexperienced technicians or those without the right tools may take significantly longer, or worse, damage the lock entirely.
Understanding the Rekeying Process
To fully grasp the duration of the lock rekeying process, it helps to understand what steps a locksmith performs. Here’s a breakdown of a typical lock rekeying procedure:
Step 1: Removing the Lock From the Door
The first step is to remove the lock from the door to access the cylinder. Depending on the type of lock (knob, lever, or deadbolt), the removal process can vary slightly. Most traditional door handles and deadbolts are held in place by screws on the interior side.
This step is fairly quick, usually taking 1–5 minutes unless the screws are stripped or painted over, which may increase the time required.
Step 2: Pulling the Cylinder
Once the lock is removed, the next step is to extract the cylinder (also known as a key plug or lock core). This component houses the pins and springs that are adjusted during rekeying.
In many cases, a key is required to turn the cylinder to a specific position before it can be removed. If the customer doesn’t have the existing key, the cylinder may have to be drilled out, significantly slowing the process and turning a simple rekey into a more expensive repair.
Step 3: Disassembling and Sorting the Pins
With the cylinder in hand, the locksmith removes the top pins, bottom pins, and springs from the pin chambers. These components will then be replaced with a set that corresponds to the new key.
This step is crucial to the process and demands both knowledge and precision. Inexperienced hands can easily lose components or mix up key pins, which will result in a non-functional lock.
Step 4: Reassembling the Cylinder
Using the new pin configuration that matches the customer’s key (or a new key created at the job site), the cylinder is reassembled. A proper assembly ensures smooth operation and correct key alignment.
If a new key needs to be cut on-site, that may add a few minutes to the process, but most professional mobile locksmiths carry a full set of pin kits and key-cutting equipment.
Step 5: Reinstalling the Lock
Once rekeyed, the cylinder is reinserted into the lock body, and the lock is then mounted back onto the door. The technician will test the new key multiple times to ensure full functionality and security.
Factors That Affect Time Required for Rekeying
While the average rekeying job can be completed within 10 to 30 minutes, several factors can extend or reduce the time needed. Here’s a deeper look at each:
Type of Lock
The design and complexity of the lock directly influence the rekeying time. Let’s look at some common residential lock types:
| Lock Type | Estimated Rekey Time | Notes |
|---|---|---|
| Standard Pin Tumbler Locks | 10–15 minutes | Widely used, easy to rekey. |
| Single Cylinder Deadbolts | 15–20 minutes | Slightly more involved due to heavier build. |
| Double Cylinder Deadbolts | 20–25 minutes | More complex structure. |
| High-Security Locks (Medeco, Mul-T-Lock) | 20–30 minutes | Require specialized tools and pins. |
| Smart Locks / Keyless Entry | N/A | Generally replaced rather than rekeyed. |
As we can see, basic locks on most homes can be efficiently rekeyed, while high-security models require more time and expertise.
Condition of Existing Lock
Locks that are worn out, dirty, or corroded may take longer to service. Rust or debris can make disassembly and reassembly more difficult, prolonging the job. Older locks may also require drilling if the original key is missing, which can not only take longer but may result in a damaged lock that needs full replacement.
Number of Locks Being Rekeyed
If a customer requests that multiple locks be rekeyed to the same key (a process known as keying alike), the total service time will naturally increase. However, subsequent locks take less time because the technician can reuse the pin configuration and tools, making the process more efficient.
For example:
- 1 lock: ~15 minutes
- 3 locks: ~45 minutes
- 5 locks: ~1 hour 15 minutes
This is an important detail for home and property owners who wish to consolidate keys.
Availability of Original Key
Rekeying is easier and faster when the original key is present. Without the key, a locksmith can’t easily rotate the cylinder to the correct position for removal. In such situations, the locksmith often has to drill the lock, increasing the job’s time and cost.
The alternative to drilling is lock picking, but this method is time-consuming, requires specific tools, and may be illegal depending on the jurisdiction.
Experience of the Locksmith
A professional locksmith with proper training and experience will complete the job more quickly and accurately. Conversely, inexperienced technicians or DIY efforts may take longer and could damage the lock or the door.
Lock rekeying requires knowledge of various lock systems and the ability to match pins precisely. A well-trained locksmith can efficiently complete this task without compromising the lock’s integrity.
When Rekeying Might Take Longer
While a single lock can be rekeyed within 20 minutes or so, there are situations where the job might take significantly more time:
Lost Key Scenarios
Without a key, many locks can’t be disassembled without drilling, adding time and cost to the process. This is especially true for deadbolts and commercial-grade locks. In some cases, total lock replacement may be more cost-effective than rekeying after drilling.
Multiple Lock Types
If the locks across your home or office use different systems (e.g., a Schlage front door, a Yale backdoor, and a double cylinder deadbolt), the rekeying process can’t be fully standardized. The technician may need extra time to adapt configurations or suggest using interchangeable cores for easier future maintenance.
Lock Age or Wear and Tear
Older or poorly maintained locks may suffer from internal rust, worn pins, or misaligned components. A quality rekeying service requires disassembly, cleaning, and reassembly with precision. Any of these steps may take longer if the lock is not well maintained.
Remote Locations or After-Hours Services
While the actual rekeying is relatively quick, delays can occur due to travel or scheduling issues. Locksmiths offering emergency or on-site services may add travel time onto their total job duration. Be sure to account for this when calling for a locksmith after regular business hours or in a remote location.
Rekeying vs. Lock Replacement: Which Takes Longer?
Many people wonder whether it’s better to rekey locks or replace them entirely. Speed of service is one factor in that decision.
Time Comparison
- Rekeying a lock: 10–30 minutes
- Replacing a lock: 30–60 minutes (includes selecting hardware, installation, and testing)
While rekeying is faster, it’s not always the best option. If your locks are damaged, outdated, or not high-quality, replacing them may offer better security and durability.
When Replacement is Better
Consider full lock replacement if:
- Locks have been compromised or picked
- Physical damage is evident (bent cylinder, broken faceplate)
- Older locks that offer minimal security
- You’re adding smart lock technology or keyless entry
Keep in mind that your property’s overall security depends not only on the key system but also on the quality of the lock hardware itself.
Cost Considerations for Rekeying
Time and cost are closely related, so it’s helpful to understand the financial implications of rekeying versus replacement.
Typical Rekeying Prices
On average, rekeying a single lock costs between $20 to $50, with most services charging $15 to $30 per additional lock when rekeying several to the same key.
Lock Replacement Cost
Lock replacement can range from $50 to $200 per lock, depending on the type and brand. High-security and smart locks (e.g., Schlage Encode, August Smart Lock) can exceed $300 per lock when installed professionally.
Rekeying offers a much more budget-friendly alternative to full replacement while still offering the benefit of eliminating unauthorized access.
How to Make the Process Efficient for Your Locksmith
Whether you’re hiring a locksmith or taking on a DIY rekeying project, there are ways to make the process run more smoothly and quickly.
Have All Keys Ready
If you’re rekeying multiple locks to one key, ensure that all existing keys are accessible. Most locksmiths will test keys during and after the procedure to verify compatibility.
Ask if All Locks Can be Keyed Alike
Request that your locks—all door handles, deadbolts, and garage entry locks—be keyed to the same cylinder or key profile. This ensures a single, unified system across your home or office.
Keep Your Doors Accessible
Ensure that technicians can access all door locks without obstacles. Clear furniture, decorations, or obstructions that could slow the job.
Hire a Certified, Local Locksmith
Working with certified experts ensures a fast, reliable service. Look for local locksmiths with good reviews and transparent pricing.
Why Timing Matters in Lock Security
Efficiency isn’t just about money—it’s also about safety. A quickly rekeyed lock helps you regain control of your property’s access faster. In urgent situations—like if your keys were stolen, you experienced a break-in, or a former employee retained your office key—waiting too long can expose you or your business to risk.
Rekeying allows you to maintain your existing hardware but restore access control without delay. And when performed by an experienced professional, it only takes minutes to significantly enhance security.
Conclusion: A Fast, Effective Solution for Enhanced Security
In summary, rekeying is a practical, affordable, and swift solution for homeowners and business owners seeking to maintain control over who has access to their property. The typical time it takes for a locksmith to rekey a lock ranges from 10 to 30 minutes per lock, depending on factors like lock type, condition, and the technician’s experience.
To ensure a fast and reliable job:
- Have existing keys available.
- Ensure access to all locks needing service.
- Hire a certified, local, reputable locksmith.
- Understand your hardware and options before calling a service.
Regardless of the time it takes, the value of a properly rekeyed lock lies in its ability to offer peace of mind by eliminating the risk of unauthorized access.
Whether you’re securing a home, office, or rental property, rekeying your locks is a small investment with a huge return: enhanced safety and control with minimal downtime.
How long does it take a locksmith to rekey a lock?
On average, a professional locksmith can rekey a lock in about 10 to 30 minutes per lock, depending on the complexity of the lock system and the type of lock being rekeyed. This process involves disassembling the lock cylinder, removing the existing pins, and replacing them with a new combination that matches the desired key. For standard residential locks like deadbolts or door handles, the process is typically quick and straightforward.
However, if the lock system is more advanced, such as a high-security lock or one that forms part of a master key system, the rekeying process may take longer. Additionally, if multiple locks need rekeying to operate with the same key, a locksmith can often complete several locks within an hour. The time also depends on the locksmith’s experience and the accessibility of the lock on the property.
Does rekeying a lock require replacing the entire lock?
No, rekeying a lock does not require replacing the entire lock. In most cases, only the internal components of the lock cylinder (the key pins and springs) are changed to match a new key. This allows the exterior hardware—the lock body, faceplate, and other components—to remain intact, preserving both the aesthetics and function of the lock while enhancing security.
Replacing the entire lock may be necessary only if the lock is damaged, outdated, or if the homeowner wishes to upgrade security features. Otherwise, rekeying is a cost-effective and efficient way to maintain security without the need for full replacement, especially after moving into a new home or losing keys.
Can I rekey a lock myself?
It is possible to rekey a lock yourself using a rekeying kit that’s typically available for specific brands and types of locks. These kits include the necessary tools and components to replace the pins and springs inside the lock cylinder. While it’s a feasible DIY project for those with mechanical aptitude, it can be time-consuming and requires a careful, methodical approach to ensure the lock operates smoothly after rekeying.
However, mistakes during DIY rekeying can lead to improper key alignment, difficulty turning the key, or even the need to replace the lock entirely. Therefore, hiring a professional locksmith is often the better choice, especially for first-time rekeying or when dealing with multiple locks that need to be keyed alike. Professionals bring expertise, speed, and tools that reduce the risk of errors.
What factors influence the time it takes to rekey a lock?
Several factors can influence how long it takes to rekey a lock, including the type of lock (standard versus high-security), the number of locks being rekeyed, and the age and condition of the lock. Older or worn lock cylinders may be more difficult to disassemble and reassemble, while modern locks often feature user-friendly designs that make rekeying easier and faster. Additionally, convenience features like sidecars or rotating bezels may add time to the process.
The locksmith’s experience and the tools available also play a significant role. A seasoned locksmith will typically complete the task more quickly than someone less experienced. Furthermore, if all locks are to be rekeyed to operate with the same key, the technician may need to test the key in each lock after rekeying, which can slightly extend the overall service time.
What is the cost of rekeying a lock?
The cost of rekeying a lock typically ranges from $25 to $75 per lock at the time of service, depending on location, the type of lock, and the locksmith’s experience. In most cases, rekeying multiple locks at the same time can lead to cost savings, as many locksmiths offer package deals. Scheduling the service during regular business hours or contacting a local locksmith can also help reduce costs.
Compared to replacing locks entirely, which can cost $50 to $200 per lock, rekeying is a much more economical option. Since the existing hardware remains intact, there’s no need to spend on new lock bodies or professional installation unless the lock is incompatible or damaged. Rekeying is especially cost-effective for landlords or property managers looking to enhance security between tenant changes.
Is rekeying more secure than replacing a lock?
Rekeying a lock can provide the same level of security as a new lock if done properly. The process effectively changes the internal pin configuration, making the old key ineffective. As long as the lock cylinder is in good condition and not worn out, rekeying does not compromise its security. In fact, it can be a better option in cases where the existing lock is high-quality and still functioning well.
However, if the lock is visibly damaged, rusted, or excessively worn, replacement may be the better choice, as these issues can affect the lock’s performance and security, regardless of the key. Homeowners should also consider upgrading to a higher security lock if they’re concerned about break-ins or forced entry, even if they opt to rekey existing locks on other doors in the house.
When should I consider rekeying my locks?
Rekeying is highly recommended in various home security scenarios, such as moving into a new house, losing your keys, or experiencing a break-in. These are important times to change the internal configuration of your locks to ensure unauthorized individuals cannot access your property. Landlords also commonly rekey locks between tenants to maintain control over building access.
Other situations to consider rekeying include if you’re concerned about duplicate keys being in circulation, or if you’ve had contractors or service professionals with temporary access. It’s also a wise choice when selling your home, to ensure that old keys no longer work after ownership changes. Rekeying gives peace of mind without the need for full hardware replacement in most cases.