We get this question all the time: “Do I really need brand-new locks, or can you just rekey the ones I have?”
The short answer is it depends. Below is a clear, no-nonsense guide you can use to decide which option is right for your home—and your wallet.
1. What’s the Difference?
| Process | What Actually Happens | Typical Cost* | Turnaround Time |
|---|---|---|---|
| Rekeying | A locksmith changes the pin configuration inside the existing cylinder so old keys stop working and a new key works. | $50–$150 per lock (service call included) | 20–45 minutes per lock |
| Replacing | The entire lockset (knob/lever, deadbolt, strike plate) is removed and new hardware is installed. | $200–$315 per lock including labor and new hardware | 30–60 minutes per lock |
*Prices vary by location, lock grade, and urgency (after-hours calls always cost more).
2. When Rekeying Is the Smart Move 🔑
- You’ve just moved in
You don’t know who still has the old keys—previous owners, contractors, dog-sitters. A quick rekey resets access without buying new hardware. - You’ve lost a key or had one stolen
If the lock itself is in good shape, rekeying instantly blocks that missing key. - You want “one-key” convenience
As long as your exterior locks are the same brand or keyway, a locksmith can rekey them all to match a single key consumerreports.org. - Your budget is tight
Rekeying runs roughly one-third (or less) of the cost of full replacement. - The hardware is fairly new or high quality
Grade-1 or smart-lock brands like Schlage, Yale, or Medeco typically have plenty of life left; no need to rip them out unless you’re upgrading features.
3. When Replacing Locks Is the Safer Bet 🛡️
- Visible damage or wear
Rust, loose screws, or latches that stick are signs the mechanism is failing. Hardware fatigue = security risk. - You want to upgrade security
Swapping a builder-grade lock for an ANSI/BHMA Grade 1 deadbolt, or upgrading to a smart lock with audit trails and app control, provides a bigger security jump than rekeying alone consumerreports.org. - You’re remodeling
New finish, new door style, or transitioning from knob to lever? Replace so everything matches. - Old locks lack modern features
If you’d like keyless entry, Bluetooth/NFC unlock, or automatic relock, you need new hardware. - Existing lock brands don’t match
Mixed keyways or oddball hardware sometimes can’t be pinned alike—replacement solves the compatibility headache.
4. Cost Breakdown: Rekey vs. Replace
- Rekey (3 exterior doors):
Labor/service call + three cylinders = about $150–$250 total - Replace (3 exterior doors):
Mid-grade deadbolt/knob combo sets ($50–$80 each) + labor ($80–$200) = about $350–$600 total
Tip: Removing the locks yourself and bringing them to a shop can cut the rekey bill in half.
5. DIY or Call a Pro?
| Scenario | DIY Feasible? | Why a Pro Helps |
|---|---|---|
| Basic Schlage/Kwikset rekey kit | ✔ Possible | Kits cost $15–$25 but require patience and the current key. |
| Smart or high-security locks | ❌ Not recommended | Special tools, security screws, and warranty concerns. |
| Multiple lock brands or no spare key | ❌ Call a locksmith | A tech can impression or pick the cylinder open, then rekey it. |
6. The Bottom Line
- Choose rekeying if the locks are in good shape, you’re on a budget, or you simply need to revoke old keys fast.
- Choose replacement if the hardware is worn out, mismatched, or you’re ready to leap to higher-grade or smart-lock technology.
Either way, working with a licensed, local locksmith ensures the job is done correctly—and that your doors close with that satisfying “click” every time.
Ready to Boost Your Home Security?
Matt-Lock Automotive & Residential Services (yep, we handle houses too!) offers:
- Same-day rekeying for moves, lost keys, or tenant turnover
- High-security and smart-lock upgrades with clear, upfront pricing
- 24/7 emergency lockout help—because keys never get lost at a convenient hour
📞 Call or text us at (360) 553-5164
📍 Serving Vancouver and surrounding areas
Save our number now, and sleep easier tonight!