Should you rekey your locks or replace them entirely? It's a common question, especially after moving into a new home or experiencing a security concern. Both options have their place, and choosing the right one can save you money while keeping your home secure.
Quick Comparison
🔑 Rekeying
Cost: $20-$40 per lock
Time: 10-15 minutes per lock
What happens: The pins inside your lock are changed so old keys no longer work. You get new keys that work with your existing hardware.
🔒 Replacing
Cost: $80-$300+ per lock
Time: 20-45 minutes per lock
What happens: The entire lock is removed and new hardware is installed. You get a completely new lock and keys.
When to Rekey Your Locks
Rekeying is the better choice when:
- You just moved into a new home - You don't know who has copies of the old keys
- You lost your keys - But your locks are in good condition
- A roommate or tenant moved out - Ensure they can't re-enter
- After a break-up or divorce - Regain exclusive access
- You want all locks on one key - "Keyed alike" rekeying
- Your locks are still in good condition - No rust, damage, or wear
When to Replace Your Locks
Replacement makes more sense when:
- Your locks are damaged or worn - Sticking, hard to turn, rust
- You want to upgrade security - Moving to Grade 1 or high-security locks
- After a break-in attempt - Even if unsuccessful, the lock may be compromised
- Your locks are very old - Locks over 10-15 years old may have wear
- You want smart lock features - Keyless entry, app control, etc.
- You're changing the door style - New hardware to match new door
⚠️ Important: After a Break-In
If someone has physically forced or tampered with your lock, always replace it—even if it still seems to work. The internal mechanism may be weakened, making it easier to breach again.
Cost Comparison: Real Examples
Scenario 1: New Homeowner with 3 Entry Doors
Rekeying all 3 locks: $60-$120 total
Replacing all 3 locks: $240-$600+ total
If the existing locks are in good shape, rekeying saves 60-80%.
Scenario 2: 20-Year-Old Locks After Break-In Attempt
In this case, replacement is the smart choice. The old locks may be weakened and outdated. Modern locks offer better pick and bump resistance.
The "Keyed Alike" Advantage
One major benefit of rekeying (or careful replacement) is getting all your locks to use the same key. This means:
- One key for front door, back door, and garage entry
- Fewer keys on your keychain
- Easier for family members
Both rekeying and replacement can achieve this—but rekeying is the cost-effective way if your locks are already the same brand.
Can I Rekey Locks Myself?
Some locks (like Kwikset SmartKey and Weiser SmartKey) let you rekey without a locksmith using a special tool. However:
- You need the current working key
- You need the specific rekey tool for your brand
- One wrong step can disable the lock
For standard pin-tumbler locks (Schlage, Medeco, most deadbolts), you need locksmith tools and training. Professional rekeying is quick and ensures it's done right.
Our Recommendation
For most homeowners moving into a new place, rekeying is the smart first step. It's fast, affordable, and gives you immediate security. Later, you can upgrade individual locks to higher-security options as budget allows.
If you're unsure whether to rekey or replace, we offer free assessments. A quick look at your locks can determine the best path forward.
Need Locks Rekeyed or Replaced?
Fast, professional service across the Niagara Region. Free security assessment included.
📞 Call (343) 312-8468