Locks are one of the most important parts of home or business security. But when you move into a new property, lose a key, or want better protection, you may face a question: should you rekey your locks or change them completely? Understanding the differences between these two options can help you make the right decision for your security needs. If you live in Hebron or nearby in Northwest Indiana and ever find yourself locked out, Keys4U is just a call away with professional Lockout Service in Hebron to get you back inside quickly and safely. Here, we’ll break down rekeying vs. changing locks in simple terms, explain the benefits and costs, and help you decide what’s best for your situation.
What Is Rekeying a Lock?
Rekeying is a process where a locksmith changes the internal pins of a lock so that old keys no longer work. Essentially, the lock hardware stays the same, but it works with a new key.
How Rekeying Works
- The locksmith removes the lock cylinder.
- The pins inside the cylinder are replaced or adjusted.
- The lock is reassembled to work with a new key.
After rekeying, anyone with an old key can no longer open the lock. You get security without replacing the entire lock.
Read Also: Why Do People Need Locksmith Emergency Services?
When Rekeying Makes Sense
- You’ve lost a key but don’t want to buy new locks.
- You moved into a new home and want to ensure no one else has a working key.
- You want to create a master key system for multiple locks.
- Your locks are still in good condition, just need updated access.
Benefits of Rekeying
- Cost-effective: Usually cheaper than changing locks entirely.
- Quick: Often completed in less than an hour per lock.
- Less hassle: No need to remove and replace lock hardware.
Limitations of Rekeying
- Only works if your locks are in good condition.
- Won’t upgrade old locks with outdated security features.
- Limited choice if you want a completely new lock style or brand.
What Is Changing a Lock?
Changing a lock means completely removing the old lock hardware and replacing it with a new lock and key. This can include deadbolts, knob locks, handle sets, or smart locks.
How Changing a Lock Works
- The old lock is removed from the door.
- A new lock is installed in its place.
- New keys are provided, and old keys no longer work.
Changing locks is a full replacement, not just an adjustment.
When Changing Locks Makes Sense
- Your current locks are damaged, old, or worn out.
- You want higher security or upgraded locks, such as smart locks.
- You’ve had a break-in or attempted burglary.
- You want to change the lock style, finish, or brand.
Benefits of Changing Locks
- Enhanced security: New locks often have better features and stronger materials.
- Complete control: You know exactly who has keys to your property.
- Aesthetic upgrade: You can choose modern styles that match doors or décor.
Read Also: What to Do During a Car Lockout
Limitations of Changing Locks
- Higher cost: More expensive than rekeying because of new hardware.
- Time-consuming: Installation may take longer than a simple rekey.
- Additional planning: Need to choose the right lock style, brand, and features.
Rekeying vs. Changing Locks: Side-by-Side Comparison
Feature | Rekeying | Changing Locks |
Cost | Lower, usually $15–$50 per lock Higher, | $50–$200 per lock, depending on type |
Time | Quick, often under an hour | Longer, 1–2 hours per lock |
Security Upgrade | No major upgrade; uses same lock | Full upgrade; can choose high-security locks |
Best For | Lost keys, moving homes, master key setup | Damaged locks, break-ins, aesthetic or security upgrade |
Hardware Replacement | No | Yes |
Customization Limited | Limited | Full control over lock type and style |
Cost Considerations for Rekeying vs. Changing Locks
When deciding between rekeying vs. changing locks, cost is a big factor. Rekeying is generally cheaper because it uses the existing hardware. Changing locks involves buying new locks, keys, and sometimes additional accessories like strike plates.
Here’s a rough estimate:
- Rekeying: $15–$50 per lock, plus locksmith fees.
- Changing locks: $50–$200 per lock depending on quality and type.
While rekeying saves money, sometimes the extra investment in a new lock is worth it for added security and durability.
Security Considerations for Rekeying vs. Changing Locks
- Rekeying: Stops old keys from working and is an effective way to control access. However, it does not upgrade the physical strength of the lock.
- Changing locks: Provides stronger, newer hardware, which can resist picking, bumping, or forced entry better. For high-risk areas or older locks, changing may be the safer option.
Situations That Favor Rekeying
- You lost a few keys and want quick access control.
- You just moved into a new home and want everyone else’s keys disabled.
- Your locks are fairly new and in good condition.
- You want a master key system to simplify access to multiple locks.
Situations That Favor Changing Locks
- Locks are old, worn, or malfunctioning.
- You want higher-security locks, smart locks, or modern designs.
- Your home has experienced a break-in or attempted burglary.
- You want a fresh start with completely new keys and hardware.
Tips for Making the Right Choice
- Assess the condition of your current locks: If they are worn or outdated, consider changing them.
- Consider your budget: Rekeying is cheaper, but changing locks may provide long-term value.
- Think about security needs: High-risk areas may benefit from a full lock replacement.
- Consult a professional locksmith: Experts like Keys4u can recommend the best solution for your property.
Summary
Deciding between rekeying vs. changing locks depends on your situation, budget, and security needs. Rekeying is fast, affordable, and perfect for controlling access without replacing hardware. Changing locks is ideal for older, damaged locks or when you want higher security and a fresh start.
For most homeowners and businesses, consulting a professional locksmith like Keys4u ensures the right choice. Proper lock management keeps your property safe, your family secure, and your peace of mind intact.

