When you want to improve your home or business security, changing the locks is not always the only option. In many situations, you may be able to keep the existing lock hardware and simply have the locks rekeyed by a locksmith in NYC.
Rekeying and changing locks can both prevent an old key from working, but they are not the same service. Rekeying changes the internal configuration of an existing lock so that it works with a new key. Changing a lock involves removing the existing hardware and installing a new lock.
So, which option is right for you?
The answer depends on why you need the change, the condition of your existing locks, and whether you want to upgrade your hardware at the same time. Understanding the difference can help you choose the most practical solution for your situation.
What Is Lock Rekeying?
Lock rekeying is a process that changes the internal components of a lock cylinder so the old key no longer operates the lock.
The existing lock hardware generally stays in place. A locksmith adjusts the lock cylinder and configures it to work with a new key.
For example, imagine you move into a new apartment and are unsure who may have copies of the existing keys. If the locks are in good condition, you may not need completely new hardware. Rekeying can allow you to keep the existing locks while making the old keys ineffective.
Rekeying can be useful when:
- You want to prevent previous keyholders from accessing the property.
- You lost a key and do not know who might find it.
- An employee or tenant no longer needs access.
- You want multiple locks to work with the same key.
- Your existing locks are still in good condition.
- You want to improve key control without replacing all the hardware.
What Does Changing a Lock Mean?
Changing a lock involves removing the existing lock and installing a different lock or lockset.
Unlike rekeying, the physical hardware is replaced. This gives you an opportunity to upgrade the type, design, or security features of the lock.
For example, you might replace an older deadbolt with a newer high-security deadbolt or replace a traditional lock with an electronic keypad lock.
Changing locks may make more sense when:
- The existing lock is damaged.
- The lock is worn out.
- You want a different type of lock.
- You want to upgrade security features.
- The existing hardware does not fit your security needs.
- You are replacing doors or other hardware.
- You want to move from traditional keys to electronic access.
Rekeying vs. Changing Locks: What’s the Difference?
The main difference is what happens to the existing hardware.
| Rekeying | Changing Locks |
|---|---|
| Existing lock hardware generally remains | Existing lock hardware is removed |
| Internal lock configuration is changed | New lock hardware is installed |
| Old keys can be made ineffective | Old lock is physically replaced |
| Usually useful when hardware is still in good condition | Useful when hardware is damaged, outdated, or being upgraded |
| Can be a practical way to regain key control | Provides an opportunity to upgrade the lock itself |
| Usually requires less hardware | Requires new lock hardware |
Neither option is automatically better. The right choice depends on the condition of your locks and what you want to accomplish.
When Should You Rekey Your Locks?
Rekeying can be a convenient option when your main concern is controlling who has a working key.
After Moving Into a New Home
You may not know how many copies of your home’s keys exist or who has access to them.
Previous owners, tenants, contractors, property managers, family members, or other individuals may have had copies.
Rekeying the existing locks gives you a new key without requiring every lock to be replaced.
After Losing Your Keys
If you lose a key, there is no way to know who might find it.
If the key could be connected to your address or otherwise used to identify your property, rekeying can help prevent the lost key from opening the lock.
After a Tenant Moves Out
Landlords and property managers may want to regain control of access after a tenant leaves.
Instead of replacing every lock, rekeying may allow the existing hardware to remain while preventing the previous key from working.
After an Employee Leaves
Businesses may need to change access when employees, contractors, or other authorized individuals leave the organization.
Rekeying can be useful when the existing locks remain suitable but access needs to be changed.
When You Want One Key for Multiple Locks
If you have several compatible locks that currently require different keys, a locksmith may be able to rekey them so they operate with a common key.
The ability to do this depends on the lock types and cylinders involved.
When Should You Change Your Locks?
Sometimes rekeying is not enough because the hardware itself needs attention.
The Lock Is Damaged
A damaged lock may not operate reliably even after being rekeyed.
If the cylinder, internal components, or other hardware is worn or damaged, replacement may be more appropriate.
The Lock Is Extremely Worn
Locks can experience years of use. If a key sticks, the lock is difficult to turn, or the mechanism repeatedly malfunctions, replacing the hardware may provide a more reliable solution.
You Want to Upgrade Security
Rekeying changes how an existing lock responds to keys, but it does not automatically make the lock itself more resistant to forced entry.
If your goal is to upgrade the physical security of your doors, replacing outdated hardware with suitable modern locks may be a better approach.
You Want Keyless Entry
If you want a keypad, smart lock, or another electronic access system, you will generally need to replace the existing hardware with a compatible system.
Your Existing Locks Are Outdated
Older locks may lack features you want in a modern security system. Replacing them can give you the opportunity to choose hardware that better suits your property and access needs.
Is Rekeying Cheaper Than Changing Locks?
In many situations, rekeying can cost less than replacing multiple locks because you are keeping the existing hardware instead of purchasing new locksets.
However, the actual price depends on several factors, including:
- Number of locks
- Type of lock
- Lock accessibility
- Lock condition
- Number of keys needed
- Whether locks need to be keyed alike
- Whether new hardware is being installed
- Labor requirements
A locksmith can inspect your locks and explain the available options before work begins.
The least expensive option is not necessarily the best one if the existing hardware is damaged or does not provide the security features you need.
Does Rekeying Make a Lock More Secure?
Rekeying can improve access control because it makes the old key ineffective and gives you control over who receives the new key.
However, rekeying does not automatically upgrade the physical strength or security design of the existing lock.
For example, if you have an older lock with outdated hardware, rekeying changes its key configuration but does not turn it into a high-security lock.
If you are concerned about forced entry, hardware quality, door construction, strike plates, and other physical security features may also need to be considered.
Can All Locks Be Rekeyed?
Not necessarily.
Whether a lock can be rekeyed depends on the type of lock, its cylinder design, and its condition. Some locks are designed to be rekeyed relatively easily, while others may require specific parts, tools, or procedures.
If a lock is damaged or incompatible with the desired key system, replacement may be a better option.
A professional locksmith can determine whether your existing hardware can be rekeyed.
Can You Rekey Multiple Locks to One Key?
In many cases, yes, provided the locks are compatible.
This can be convenient for homeowners and businesses because it reduces the number of keys they need to carry.
For example, you might have separate locks on a front door, back door, garage, or office. If the lock cylinders are compatible, a locksmith may be able to configure them to operate with the same key.
The specific possibilities depend on the lock brands, cylinder types, and existing hardware.
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Rekeying vs. Changing Locks After a Break-In
A break-in or attempted break-in may require a more careful evaluation.
If the lock was damaged, simply rekeying it may not address the physical damage. A replacement lock may be more appropriate.
If the lock remains physically sound but you are concerned about who has copies of the keys, rekeying may help restore control over access.
After a security incident, it can also be worthwhile to evaluate the entire door assembly, including:
- Deadbolts
- Strike plates
- Door frames
- Hinges
- Door alignment
- Other entry points
The appropriate response depends on how the property was compromised.
What About Smart Locks?
Smart locks provide another option for homeowners who want to move away from traditional keys.
Depending on the model, smart locks may use:
- Keypads
- Mobile apps
- Bluetooth
- Wi-Fi
- Access codes
- Biometric authentication
- Traditional keys as a backup
Installing a smart lock is different from simply rekeying a traditional lock. The existing hardware may need to be replaced or modified, depending on the product.
Before choosing a smart lock, consider battery life, emergency access, compatibility with your door, connectivity, and how access will be managed.
How to Decide Between Rekeying and Changing Locks
A simple way to approach the decision is to ask yourself two questions:
Is the existing lock hardware in good condition?
If yes, rekeying may be a practical option if your primary goal is to change who can access the property.
Do you want or need different hardware?
If the lock is damaged, outdated, unreliable, or lacking features you want, replacement may make more sense.
In some cases, a combination approach is appropriate. You may rekey some existing locks while replacing others that are damaged or outdated.
Why Professional Locksmith Service Matters
Lock mechanisms are small and precise. Incorrect installation or rekeying can cause a lock to operate poorly or fail when you need it.
A professional locksmith can evaluate the existing hardware, determine whether it can be rekeyed, and recommend replacement when necessary.
Professional installation can also help ensure that new locks are properly aligned with the door and strike plate.
If you are unsure which option is right for your property, having the locks evaluated before purchasing replacement hardware can save you from replacing locks unnecessarily.
Rekeying and Lock Replacement With Susu Locksmith
If you are unsure whether your locks need to be rekeyed or replaced, Susu Locksmith can help you evaluate your options.
For homeowners, landlords, tenants, and businesses looking for a locksmith in Brooklyn, the right solution depends on the condition of the existing hardware and the reason you want to change your locks.
If the locks are in good condition and you simply want to prevent old keys from working, rekeying may be sufficient. If the hardware is damaged, outdated, or you want to upgrade your security, replacing the locks may be the better choice.
The goal is to choose the service that actually addresses your security needs without replacing hardware unnecessarily.
Frequently Asked Questions
Is it better to rekey or replace a lock?
Neither option is always better. Rekeying is useful when the existing lock is in good condition and you mainly want to change which keys work. Replacement is generally more appropriate when the lock is damaged, worn, outdated, or needs different features.
Does rekeying change the entire lock?
No. Rekeying generally keeps the existing lock hardware while changing the internal configuration of the cylinder so it works with a new key.
Will my old key work after a lock is rekeyed?
Typically, no. A properly rekeyed lock is configured to operate with the new key rather than the old one.
How long does it take to rekey a lock?
The time varies depending on the lock type, number of locks, and accessibility. A locksmith can provide a more accurate timeframe after evaluating the specific hardware.
Can I rekey all my locks to one key?
Often, yes, if the locks are compatible. A locksmith can determine whether your existing cylinders can be configured to use a common key.
Should I change my locks after moving into a new home?
Changing or rekeying the locks can be a reasonable way to regain control over who has access. The best option depends on the condition and type of the existing locks.
Does rekeying improve security?
Rekeying improves key control by making previous keys ineffective. However, it does not automatically upgrade the physical security features of the lock itself.
When should I replace a deadbolt instead of rekeying it?
Replacement may be preferable if the deadbolt is damaged, unreliable, severely worn, outdated, or you want to upgrade to a different security or access system.
