Rekeying vs Replacing Locks: Which Is Right for You?

Rekeying vs Replacing Locks in Atlanta: A Complete Comparison

When you move into a new home, lose a set of keys, or experience a security concern, one of the first questions you will face is whether to rekey your existing locks or replace them entirely. Both options improve your security, but they differ significantly in cost, time, and results. This guide from King Locksmith Atlanta breaks down everything you need to know to make the right decision for your Atlanta home.

Cost Comparison: Rekeying vs Replacing Locks

The biggest difference between rekeying and replacing locks comes down to price. Here is a side-by-side comparison of typical costs in the Atlanta metro area:

When Should You Rekey Your Locks?

Rekeying is the process of changing the internal pins of your existing lock so that a new key works while the old key no longer does. The lock body, hardware, and finish stay the same. This is the right choice in the following situations:

• You just moved into a new home — Previous owners, their family, friends, or contractors may still have copies of the old keys. Rekeying is the fastest and most affordable way to secure your new home.
• You lost a set of keys — If a key is lost or stolen, rekeying eliminates the risk of someone using that key to enter your home.
• A roommate or tenant moved out — Rekeying after a tenant leaves is standard practice for landlords and property managers across Atlanta.
• Your locks are in good condition — If your deadbolts and knobs work smoothly and are a quality brand, there is no reason to replace them. Rekeying saves money while restoring security.
• You want all locks on one key — A locksmith can rekey multiple locks to work with a single key, which is convenient for homeowners with several entry points.

When Should You Replace Your Locks?

Lock replacement means removing the entire lock mechanism and installing a brand-new one. This is the better option when:

• Your locks are old or worn out — Locks that stick, jam, or have visible rust or damage should be replaced. A worn lock is a weak link in your home security.
• You want to upgrade your security grade — Residential locks are rated Grade 1 (best), Grade 2, and Grade 3 (basic). If you have Grade 3 locks from a builder, upgrading to Grade 1 or Grade 2 deadbolts dramatically improves security.
• After a break-in or attempted break-in — If a lock has been forced, drilled, or damaged during a break-in, it must be replaced. A compromised lock cannot be trusted even after rekeying.
• You want smart lock features — Upgrading to a smart lock with keyless entry, remote access, or an auto-lock feature requires full replacement.
• Aesthetic reasons — If you are renovating or want matching hardware throughout your home, replacing locks lets you choose a new style and finish.

How Rekeying Works

When a locksmith rekeys your lock, they follow these steps:

1. Remove the lock cylinder from the door hardware
2. Disassemble the cylinder to access the pin tumblers
3. Replace the existing pins with new pins that match a new key
4. Reassemble the cylinder and reinstall it in the lock
5. Test the new key to confirm smooth operation

The entire process takes about 10-15 minutes per lock. A professional locksmith can rekey an average home (3-5 locks) in under an hour.

How Lock Replacement Works

Full lock replacement involves:

1. Removing the existing lock from the door
2. Checking the door prep (hole size, backset measurement)
3. Installing the new lock body, strike plate, and hardware
4. Adjusting the alignment for smooth operation
5. Testing with the new keys

Our Recommendation

For most Atlanta homeowners who just moved, lost keys, or had a change in who has access, rekeying is the smart and cost-effective choice. If your locks are older than 10 years, damaged, or you want to upgrade your security level, replacement is the way to go. In many cases, we recommend a combination: replace the front door deadbolt with a high-security lock and rekey the remaining doors to match.

King Locksmith Atlanta offers both rekeying and lock replacement services across the entire Metro Atlanta area. Call us for a free phone estimate.

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