Last updated: July 10, 2026
Yes. You can rekey your locks without replacing the hardware, and for most Toronto homeowners and renters in The Annex, Yorkville, or Downtown Toronto, rekeying is the smarter move—it typically costs $145 to $220 per lock and takes less than an hour. But there are edge cases where the lock itself has to go.
The Short Answer: Yes, You Can Rekey Without Replacement
Rekeying locks without replacing hardware is the standard move for renters, new homeowners, and anyone who wants to control who has access. The locksmith removes the cylinder (the part that turns), swaps out the internal pins, and reinstalls it—same hardware, completely new key code.
For a typical residential entry lock in The Annex or Downtown Toronto, rekeying costs between $165 and $220 per lock. If you have three entry doors, expect a total bill in the range of $480–$660 plus service call fees (usually $75–$125 if it's a standalone visit). Most jobs finish in 20–30 minutes per lock.
The Full Answer: How Rekeying Works and When It Makes Sense
What Rekeying Actually Does
When you rekey a lock, the locksmith disassembles the cylinder—that's the part you insert your key into. Inside, there are five or six spring-loaded pins. The old pins were set to match your old key's cuts. Rekeying means replacing those pins with a new set that matches a brand-new key. Every other part of the lock—the bolt, the frame, the strike plate, even the cylinder housing—stays exactly where it is.
This is why it's cheap and fast. The locksmith isn't removing the door handle or drilling holes or rewiring anything. They're just swapping pins inside an existing cylinder. In The Annex, where a lot of rental buildings have been around for decades, the brass cylinders on the doors are often solid enough to rekey five or six times over—which matters if you move every few years.
Standard Costs: What You'll Pay in Toronto
A standard residential entry lock—the kind you see on apartment doors and single-family homes across Cabbagetown, Rosedale, and Leslieville—costs $165–$220 to rekey. If the lock is a Kwikset 980 or Weiser lock (the builder-grade brass cylinders common in older Toronto buildings), you're at the lower end. If it's a Schlage commercial-grade cylinder or a master-keyed system, the price creeps toward $220–$245.
Here's what a typical Annex job looks like:
| Item | Cost |
|---|---|
| Single residential lock rekey (one lock) | $165–$220 |
| Three locks (front door, patio, garage) | $495–$660 |
| Service call fee (if standalone visit) | $75–$125 |
| Master-key or high-security cylinder rekey | $225–$280 |
| Kwikset or Weiser standard cylinders (builder-grade) | $145–$180 |
If you're in a rental building in Yorkville or Downtown Toronto and your lease lets you make the call (not the landlord), you're looking at maybe $500 total to secure all your entry locks with fresh keys.
Why Rekey Beats Replacement (Most of the Time)
Replacement means buying a whole new lock assembly—new cylinder, new handle, new bolt mechanism. A mid-range residential door lock assembly (Schlage B60, Baldwin, Weiser) costs $180–$320 just for the hardware. Installation can run another $150–$250 per lock because the locksmith may have to drill new holes, install a new strike plate, or patch old holes in the door frame.
Total: $330–$570 per lock. For three doors, you're at $990–$1,710—more than double what rekeying costs. Honestly, I didn't believe how often renters asked about replacement until I started tracking it: almost nobody actually needs a new lock. They need a new key code.
The only times replacement makes sense:
- The cylinder is damaged, cracked, or corroded.
- The lock is so old the pins can't be found or the cylinder is chewed up from lock picks.
- You want to upgrade to a high-security lock (Medeco, Mul-T-Lock) that can't be picked with standard tools.
- The lock is a specialty type—a card reader, a biometric, or an old mortise lock that no locksmith in Toronto stocks pins for.
The Rekeying Process: What to Expect
Using a special key or a removal tool, they extract the cylinder from the door handle or deadbolt. No drilling, no door damage.
The locksmith disassembles the cylinder plug, removes the five or six existing pins, and replaces them with a new set matched to your new key code.
The cylinder slides back into the lock body. The locksmith tests the new key twice to confirm it turns smoothly and the bolt retracts.
The locksmith tries the old key in the rekeyed lock. It should refuse to turn. That's the whole point.
The entire job on one lock takes 15–30 minutes depending on the lock's condition. If the cylinder is stuck or corroded, add another 10–15 minutes. A property manager in Riverdale with five units to rekey on the same day—say, after a tenant move-out—would typically be charged per-lock pricing, so $825–$1,100 total including the service call.
Master-Key Systems: Rekeying Gets More Complex
Some residential buildings in The Annex, Forest Hill, and Casa Loma use master-key systems—a setup where a "master key" opens every unit, but each tenant has a unique "change key" that opens only their door. Rekeying a master-key lock is more expensive ($245–$310 per lock) because the locksmith has to maintain compatibility with the master key while changing the tenant's individual code.
If your building is master-keyed, the landlord usually handles this, not you. But if you're a property owner managing a master-key system and need to rekey after a tenant moves out—or if someone lost a key—that's a call worth making to a locksmith who handles commercial/multi-unit work.
When Rekeying Isn't Possible (And You Need Replacement Instead)
Before you call a locksmith for a rekey, they'll inspect the lock. Here's what kills a rekey and forces you into replacement:
Broken or severely worn pins. If the locksmith pulls the cylinder and sees broken pins, chips in the keyway, or rust inside, the lock can't hold new pins. New hardware is the only option.
Keyway damage from picks or forced entry. A lot of Downtown Toronto rental properties see attempted break-ins. If the keyway is gouged or deformed, a fresh key won't turn smoothly, and the cylinder needs to be replaced.
Specialty locks without available pins. Old mortise locks (built into the door frame), obsolete brand names, or European imports sometimes can't be rekeyed because a locksmith in Toronto can't source the right pin set. In that case, you're replacing the entire lock.
Master-key locks being converted to individual keys. If a rental unit has a master-key lock and you want to remove the master-key feature entirely, rekeying won't do it. You need a new, non-master cylinder.
Related Question We Often Hear: "What If I Want to Match All My Locks to One Key?"
Yes. This is called "keying alike." The locksmith rekeyes each lock to accept the same key code. It costs the same as a standard rekey per lock ($165–$220 each), but there's coordination involved: the locksmith needs a key from one lock that you want to match all the others to, or they'll create a completely new key code and rekey all three locks to that code.
For a homeowner in St Clair or Wychwood managing three doors, this is convenient—one key ring, no fumbling. For rental properties or commercial buildings, keying-alike is less common because security usually demands different keys for different areas. But if this is your home, it's a smart request.
When the Answer Is Different: Edge Cases in Toronto
Renting vs. Owning: Who Pays?
If you're a renter in The Annex or Leslieville, Ontario residential tenancy law says the landlord must maintain the lock in good working order. That means if the existing lock works, they're not obligated to pay for a rekey. However, many tenants request a rekey when they move in, and some landlords (especially in larger buildings) will do it as part of the move-in process.
Check your lease. Some landlords cover rekeys; others expect the tenant to pay or don't allow them at all. If you do pay out of pocket, budget $165–$220 per lock. If the landlord refuses to rekey and you're concerned about old keys being in circulation, document the request in writing—that protects you if there's ever a security incident.
Commercial vs. Residential: Different Pricing, Same Principle
If you own a retail space, office, or commercial property in Downtown Toronto or Yorkville, rekeying still works the same way—swap the pins, keep the hardware. But commercial locks are often more expensive to rekey because they use heavier-duty cylinders (Mul-T-Lock MT5+, Schlage Primus) that cost more and require specialized pins. Budget $220–$320 per lock for a commercial rekey, plus $125–$175 for a service call if it's a standalone job.
Also, commercial properties often have audit trails—they want to document when keys were issued and to whom. Your locksmith can provide a key receipt or certificate of rekeying, which is useful for your records.
Winter, Corrosion, and Lake-Proximity Locks in Toronto
Clients near the lake or in Rosedale, where moisture and salt air are constant, bring locks that are corroded on the outside. A locksmith can usually still rekey them if the internal pins aren't seized. But if the cylinder is stuck and won't turn, or if rust has eaten into the keyway, replacement becomes necessary. These locks often need a protective coating after rekeying—ask your locksmith about a light oil or graphite treatment that protects against winter salt spray.
Old Locks That "Look Fine" But Aren't
A Kwikset 980 that's been on a Cabbagetown door for 15 years might look pristine from the outside, but when the locksmith opens it, the pins are flat and worn. They can still be replaced, but the new pins might not hold as securely because the cylinder plug itself has wear. In cases like this, a locksmith will still perform the rekey (it's cheaper to try), but they might recommend replacement if the lock starts to stick or lose security within a few months.
Frequently Asked Questions
Yes. A locksmith can rekey a lock without the original key. They'll need to disassemble the cylinder (using special tools), swap out the pins, and create a brand-new key code from scratch. The cost is the same as a standard rekey—$165–$220 per lock—because the work is identical.
A standard residential lock rekey takes 15–30 minutes per lock. If you have three locks, expect 1–1.5 hours on-site. Older or damaged locks may add another 10–15 minutes. A locksmith in The Annex or Downtown Toronto will typically knock out multiple locks on the same visit within that window.
Rekeying is secure as long as the lock hardware is sound. You're just changing who can open it (new key code). Replacement is "more secure" only if you're upgrading to a higher-security lock (Medeco, Mul-T-Lock) that resists picking and drilling better than budget cylinders. If your existing lock is fine, a fresh rekey gives you the same security level as a new lock, at a fraction of the cost.
Smart locks and electronic locks don't have physical pins—they work with digital codes, apps, or biometrics. You can't rekey them in the traditional sense. Instead, you change the access code or delete old user credentials through the lock's app or control panel. If your smart lock is faulty or won't reset, the manufacturer or a locksmith familiar with that brand (Yale, Level Lock, August) can help you regain access.
Ready to Secure Your Lock? Get Expert Advice
If you're in The Annex, Yorkville, Downtown Toronto, or anywhere across the midtown/downtown core and you need to rekey locks without replacing hardware, a qualified locksmith can assess your lock, confirm it's a candidate for rekeying, and have you with fresh keys in under an hour. Whether you're a tenant protecting your privacy, a new homeowner securing a building you just bought, or a property manager handling a unit turnover, rekeying is the fastest, most affordable way to take control of access.
Have questions about your specific locks? Unsure whether rekeying or replacement is right for you? Get in touch with a locksmith who can inspect your hardware and give you a clear recommendation and estimate—no surprises, no pressure.
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