
Change or rekey · Clarington
Lock Rekeying in Clarington
Every copy of your house key seems to work a little differently. One needs a jiggle, another sticks halfway, and the original wore down years ago.
Lock Rekeying
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 goesThe previous owners left a coffee tin of keys on the counter, some labelled, most not. The house is yours now, but you have no idea how many copies were cut over the years or who still has one in a drawer somewhere.
Clarington
How the visit goes
Counting the keys that are already out there
Part of planning a rekey is understanding why it is happening. The locksmith asks how many keys exist as far as you know, who has held one, and whether any went missing with something identifying the address. The answers do not change the pinning, but they shape the advice: whether a padlock or mailbox shares the same risk, whether a garage keypad code should change on the same visit, and how many new keys make sense to cut. It also helps to know whether any key is a restricted or patented type, since those are cut from a record rather than duplicated and may involve the original supplier.
Resetting a user-rekeyable cylinder properly
Some residential deadbolts and handle sets are built so the owner can change the key with a small tool, a working key and the new key. They save a bench session, and they also go wrong in a particular way: without a working key of the correct type, or with a key from the wrong keyway, the reset stalls partway. The locksmith carries the reset tool and the reset procedure for these cylinders, confirms the keyway matches the new house key, and completes the change so the cylinder accepts the new key and rejects the old one. If the mechanism has been damaged by a forced reset, it is replaced with a standard cylinder and pinned to match.
The old keys are just metal now
Whatever was out in the world before today, the copy the contractor kept, the key the former roommate never returned, the ring that went missing on the bus, none of it turns a lock on your property any more. That is the whole point of the visit, and it is worth saying plainly because people sometimes keep worrying afterwards. If you still hold old keys, they can go in the metal recycling. There is no need to change the door hardware or your routine, but any keypad code known to someone whose access is ending should be deleted or changed separately, since rekeying the mechanical cylinder does not touch those codes.
Lock Rekeying
In the van
- Plug follower
- Cylinder shim
- Graded bottom pin kit
- Code cutter or key duplicator
- Retaining clip tool
What affects the quote
Same fees day, night or weekend
1Restricted 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.
2Condition 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.
3Interior doors added to the plan
Bedroom, office or storage-room locks brought onto a key are lighter work than exterior deadbolts, but each is still a cylinder to pin and test, and the count includes them.
Lock Rekeying: questions
How many new keys will I get, and can I get more later?
As many as you ask for, cut on site from the fresh pinning and tested in each door they should open; two or three is typical for a household. More can be cut later. When you do, bring one of the locksmith's originals to be copied rather than a copy of a copy, since every generation strays slightly from the intended depths. If any key is a restricted type, additional copies come from the record kept for that system rather than from a hardware store.
My locks are different brands. Is that a problem?
Not a problem, just a detail to plan around. What matters is the keyway, meaning the profile of the slot the key fits, rather than the name on the lock. Different makers sometimes share a profile and sometimes do not. Where two cylinders cannot accept the same key, one is exchanged for a compatible cylinder in the same finish and pinned to match. From the outside the door looks the same and from your pocket it is one key.
Can the entry door of my condo suite be rekeyed?
Often, but check with your property management first. Condominium corporations have a right to enter a unit on reasonable notice, and without notice in an emergency, and many buildings ask that suite doors stay on a system the corporation can open or that a key be lodged with management. Lobby, garage and locker-room doors belong to the corporation and are theirs to manage. A locksmith will ask about your building's rule and work within it.
Change or Rekey Locks

- Lock Replacement & UpgradeThe brass handleset has gone blotchy and green where the winter salt reaches it, and the coating on…
- Vintage Mortise Lock ServiceThe knob flops loose on its spindle and never springs back to level.
- Smart Lock InstallationArthritis has made the small house key hard to grip and turn, especially with gloves on in January.
Lock Rekeying near you
Below is the full menu of lock and key work available in Clarington, written for people who are not locksmiths. Each entry says what the service is, when it makes sense, and roughly how a visit unfolds, so you can arrive at the door already knowing what the technician is going to do and why.