Change or rekey · Mississauga
Lock Rekeying
The builder handed over your new home with a stack of identical keys, and you know the framing crew, the painters and the flooring installers all used a construction key during the build.
In plain words
One key for the whole house is a common request and usually achievable. Cylinders that share the same keyway, the shaped channel the key slides into, can all be pinned to the same new combination, so the front door, back door and garage entry answer to a single key. Where a door carries a lock from a different family with its own keyway, that cylinder is swapped for a matching one rather than repinned, and then it joins the group. The locksmith checks each lock face before the work begins so you know exactly which doors will share the key.
How the visit goesYour roommate moved out last weekend. Rent is settled, the room is empty, and the key is still on their ring. You trust them, but the lock on your front door should answer to the people who actually live here.
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
Who is entitled to change the locks
Rekeying decides who can enter a home, so the first check is about the person asking. A homeowner shows photo identification and something tying them to the property, such as a tax bill, a closing document or a utility statement. A property manager brings authorization from the owner. A tenant is asked whether the landlord has agreed to the change and will receive a copy of the new key, because tenancy rules here expect both sides to hold one. Where a unit is in a condominium, the locksmith asks whether the building has a rule about suite-door locks. None of this is an obstacle; it is the part of the job that protects the home being worked on.
Sliding the plug and changing the pins
With the cylinder in hand, the locksmith removes the cam or tailpiece from the back, inserts the existing key and turns the plug slightly so the top pins clear, then pushes a plug follower in behind the plug as it slides out. The follower holds the top pins and springs in the housing so nothing springs loose. The plug now sits on the bench with its row of bottom pins exposed, and those pins are tipped out. This is the heart of rekeying a pin-tumbler cylinder: the pins that decided which key worked are gone, and the plug is ready to receive a set that matches a key nobody has ever carried.
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
Retaining clip tool
Cylinder shim
Graded bottom pin kit
Key blanks
Pinning tweezers and tray
Lock Rekeying
What affects the quote
Interior 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.
Records, tags and labelled key sets
A homeowner needs a short note. A property manager may want a keying chart, tagged sets for each suite and a key-issuance log, which is more office work and is quoted as such.
Access to each door being rekeyed
A rekeying visit goes smoothly when every door is reachable without delay: an empty unit, a cleared hallway, or someone available to let the locksmith into each room. Locked common areas, tenants who are out, or furniture blocking a cylinder all add time the locksmith accounts for on site.
What to have ready
- Is there a shed, gate, mailbox or padlock you would like on the same key?
- Is there a basement suite or office that should keep its own key?
- Are any of the locks keypad or smart locks with a backup key?
Lock Rekeying: questions
QuestionsCan I keep one door on a different key from the rest?
Yes, and it is common. A basement suite or in-law apartment often gets its own key so the tenant's key opens their door and nothing else, while your key opens the main house. A home office, a storage room or a shed can be kept separate for the same reason. The locksmith sets up the groups you want, pins each accordingly and tags the keys so the separate one is not mixed into the household set.
My house is older and has a mortise lock. Can that be rekeyed?
Yes. A mortise lock, the kind with a large case set into the edge of the door, uses a threaded cylinder held by a set screw reached from the door's edge. The cylinder unthreads, is pinned like any other and screws back in. Where a very old lock uses a bit key or a lever mechanism instead of a pin cylinder, the locksmith will explain the options, which may include fitting a modern cylinder into the existing case so the door keeps its original hardware.
Should I rekey when I move into a new home?
It is the single most common reason to rekey, and a sensible one. A resale home has typically passed through owners, agents, inspectors, cleaners and trades, any of whom may have had a key cut. A newly built home has been opened by construction crews using a builder's key. Rekeying on move-in means the only working keys are yours, and the same visit can bring every exterior door onto a single key, retiring the assorted keys you inherited.
Related services
- Lock Replacement & UpgradeEvery morning the front door key needs the same little dance: push in, lift, wiggle, turn.
- Vintage Mortise Lock ServiceThe knob flops loose on its spindle and never springs back to level.
- 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.