Yes — you can rekey a lock without original key in hand. As a certified Journeyman Locksmith serving Fort McMurray, I get this question regularly. Whether you have lost your keys, moved into a new home, or are concerned about who has access to your property, rekeying is almost always possible — and in most cases it is faster and more affordable than replacing the lock entirely.
Here is everything you need to know about rekeying a lock without the original key, how the process works, and when it makes sense to call a professional. Fort McMurray Locksmith is a proud member of the Fort McMurray Chamber of Commerce, serving Fort McMurray and the Wood Buffalo region for over two generations.
What Does Rekeying a Lock Mean?
Rekeying a lock means changing the internal pin configuration inside the lock cylinder so that the old key no longer works. A new key is then cut to match the new pin configuration. The lock hardware itself — the deadbolt, knob, or handle — stays exactly the same. Only the internal pins change.
This is one of the most cost-effective security upgrades you can make. Instead of buying new hardware, you simply change who has access. Rekeying is commonly done after:
- Losing a key and not knowing where it ended up
- Moving into a new home or rental property
- A relationship or roommate change where someone still has a key
- A break-in or attempted break-in
- Buying a used property where you do not know how many keys are out there
For more on when rekeying makes sense versus a full lock change, see our Fort McMurray rekey services page.
Can You Rekey a Lock Without the Original Key?
Most homeowners assume you need the original key to rekey a lock. You do not. A trained locksmith can decode the existing pin configuration using specialized tools, remove the old pins, and replace them with new ones matched to a new key — all without the original key ever being present.
The process is more involved without the original key, but it is completely standard for any experienced locksmith. I do this regularly for Fort McMurray homeowners who have lost keys, moved into properties with unknown key histories, or simply want a fresh start on their home security.
How a Locksmith Rekeys a Lock Without the Original Key
Here is exactly how the process works when the original key is not available:
Step 1 — Remove the lock cylinder
The locksmith removes the lock cylinder from the door. This takes a few minutes and requires no damage to the door or frame.
Step 2 — Decode the existing pins
Using a plug follower and decoder tools, the locksmith reads the current pin heights inside the cylinder. This tells us exactly what the old key looked like — without having it in hand.
Step 3 — Remove the old pins
The existing driver pins and key pins are removed from the cylinder using a pinning tray and pick tools.
Step 4 — Install new pins
New pins are selected and installed to match the new key that will be cut. The combination is chosen so the new key operates the lock smoothly.
Step 5 — Reassemble and test
The cylinder is reassembled and reinstalled in the door. The new key is tested to confirm smooth operation before the job is complete.
The entire process typically takes 15 to 30 minutes on site. In most cases I can rekey your locks on the same visit with no parts to order and no return trip needed.
Can You Rekey a Lock Yourself Without the Original Key?
Technically yes — rekeying kits are available at hardware stores. However, rekeying without the original key requires decoding the existing pins first, which consumer kits are not designed to handle. Without the original key you would need locksmith-grade decoder tools and the training to use them correctly.
Attempting it without the right tools risks damaging the cylinder, jamming the lock, or installing pins incorrectly — leaving your door either inoperable or unsecured. For most Fort McMurray homeowners the cost of a professional rekey is low enough that the DIY route rarely makes sense, especially when the original key is missing.
Rekeying vs Lock Replacement — Which One Do You Need?
Rekeying is the right choice when your lock hardware is in good condition and you simply need to change who has access. Lock replacement makes more sense when:
- The lock hardware is worn, damaged, or low quality
- You want to upgrade to a higher security deadbolt
- The lock has been tampered with or forced
- You want to switch to a smart lock or keypad entry
Not sure which one applies to your situation? See our full guide on lock change services in Fort McMurray or call us and we will give you an honest recommendation before doing any work.
How Much Does It Cost to Rekey a Lock in Fort McMurray?
Rekeying is significantly less expensive than replacing locks. The exact cost depends on the number of locks, the type of hardware, and whether the original key is available. Rekeying without the original key takes slightly longer due to the decoding step, which may affect the price.
Fort McMurray Locksmith provides upfront pricing before starting any work. Call 780-588-5383 for a straight answer on cost before we come out.
Frequently Asked Questions — Rekeying Without the Original Key
How long does it take to rekey a lock without the original key?
Most single lock rekeys take 15 to 30 minutes on site. If you have multiple locks to rekey in the same visit the total time increases but each additional lock is faster since the tools are already out.
Will rekeying work on any lock brand?
Most standard residential deadbolts and knob sets can be rekeyed regardless of brand. Medeco, Mul-T-Lock, and other high-security cylinders require brand-specific pinning kits but can still be rekeyed by a trained locksmith.
Does rekeying change the lock grade or security level?
No — rekeying changes the key combination only. The security grade of the lock hardware stays the same. If you want a higher security level the lock itself needs to be upgraded.
Can I get multiple locks rekeyed to the same key?
Yes — this is called keying alike and it is one of the most popular requests I get. All your door locks are rekeyed to operate on one key, eliminating the need for multiple keys on your keyring.
Is it safe to rekey a lock after a break-in?
Rekeying after a break-in is a good first step, but if the lock or door frame was damaged during the break-in the hardware should be inspected and possibly replaced before rekeying. See our residential locksmith services for full post break-in security assessments.
Fort McMurray Locksmith — certified Journeyman Locksmith serving all of Fort McMurray and the Wood Buffalo region.
Call 780-588-5383 or Book a Locksmith in Fort McMurray.