Change or rekey · Toronto
Lock Rekeying in Toronto
One key for the front door, another for the back, a third for the side door into the garage, and a fourth for the shed.
In plain words
Rekeying is a change made inside the lock rather than to the lock itself. Many keyed cylinders hold a row of small pins that have to sit at exactly the right heights before the plug will turn, set by the cuts on your key, though some residential cylinders use a side-locking bar instead of pins. A locksmith slides the plug out, removes the pins, and loads a new set matched to a freshly cut key. Reassembled, the lock looks and feels exactly as it did, except that the new key turns it and every key cut before today does not. Your hardware, finish and door stay as they were.
How the visit goesOne key for the front door, another for the back, a third for the side door into the garage, and a fourth for the shed. You stand on the step every evening flipping through them in the dark, trying each one until something turns.
Inside the lock
What a rekey changes
01
The lock you already have
02
Inside the cylinder
03
Pins, springs and the shear line
04
A new key, new pins
Lock Rekeying
How the visit goes
Deciding the key groups
Not every door in a home needs to answer to the same key, and the plan is written down before work starts. Most households want the exterior doors keyed alike so one key does everything. Some want exceptions: a basement suite on its own key, a home office or a storage room that visitors should not enter, a shed on a separate key that can be lent out without exposing the house. The locksmith sketches the groups with you, notes how many keys each group needs and who will hold them, and only then begins removing cylinders. Getting this straight first means no cylinder is pinned twice.
Reassembly and the shear-line test
On a pin-tumbler cylinder, the plug goes back into the housing with the new key in it, pushing the follower out ahead of it, and the cam or tailpiece is refitted with its retainer. Before the cylinder goes anywhere near the door, the locksmith turns the new key and checks that the plug rotates freely with no catch, then removes the key and confirms the plug is locked solid. A pin a fraction too long or too short shows up here as a rough turn and is corrected on the bench. Only a cylinder that passes goes back into its lock, where it is tested again with the door open and then closed.
For landlords: the tenant's copies and the paperwork
After a rental unit is rekeyed, the incoming tenant receives their keys, the landlord keeps a copy as the tenancy rules expect, and the number issued is written on the move-in record so the count at move-out is easy to check. The former tenant's keys are retired. Where a building has several suites, the locksmith can keep each on its own key while the shared entry stays on a common one, and the note of which key belongs to which door becomes the start of a keying chart. That chart is what makes the next turnover a matter of one cylinder rather than a guessing game about who has what.
Lock Rekeying
In the van
Cylinder shim
Key gauge
Plug follower
Key blanks
Graded bottom pin kit
Lock Rekeying
What affects the quote
How many cylinders are included
Each cylinder is removed, pinned and tested on its own, so a single deadbolt and a house with six exterior locks plus a shed and a gate are very different visits, and the quote follows the count.
Restricted or high-security cylinders
Patented keyways use controlled blanks and pins that cost more than standard ones, and their keys are produced from a controlled record instead of being copied, so a system of that kind is quoted differently from builder-grade hardware.
Condition of the existing cylinders
A clean cylinder is repinned as it is. One with collapsed springs, a plug packed with old oil or a worn housing needs service or replacement while it is apart, and that shows separately.
What to have ready
- How many new keys will your household or your tenants need?
- Do you know the age of the locks or whether any is a restricted type?
- Are any of the locks keypad or smart locks with a backup key?
Lock Rekeying: questions
QuestionsCan a smart lock or keypad deadbolt be rekeyed?
The mechanical part of it can. Many keypad or app-controlled deadbolts hide a small keyed cylinder under a cap for the day the batteries fail, and that cylinder can be pinned to your house key so the backup key on your ring is the same one that opens the other doors; some models are key-free and rely on an external battery backup instead. Codes are a separate matter: the locksmith will suggest deleting any code belonging to someone who no longer needs access at the same time.
Can all my doors be made to work with one key?
Usually, yes. Where the cylinders accept the same style of key blank, each can be pinned to one new combination, so a single key runs the front, back, side and garage doors. A lock from a different keyway family is brought into the group by exchanging its cylinder for a compatible one in the same finish. During the first walk around the property the locksmith reads every keyway and tells you up front which doors can be keyed alike.
Will my door hardware look any different afterwards?
No. The work happens inside the cylinder, so the bolt, handle, finish and strike plate stay exactly as they are, and nothing new is cut into the door. The only visible change is the key in your hand. If a cylinder does have to be replaced, because its keyway is incompatible with the others or it has worn out, the locksmith picks one in a matching finish so the door keeps a consistent look.
Related services
- Lock Replacement & UpgradeThe brass handleset has gone blotchy and green where the winter salt reaches it, and the coating on the deadbolt is lifting in flakes.
- Vintage Mortise Lock ServiceThe brass knob on the front door of your century home turns, but nothing happens on the other side.
- Smart Lock InstallationThere are four copies of the front-door key floating around: one with the cleaner, one with a neighbour, one on a hook at your parents' place, and one you honestly cannot account for.