
Change or rekey · Guelph
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. The doors are brand new, but the key that opens them should be yours…
Lock Rekeying
In plain words
The choice between rekeying and replacing comes down to the condition of the lock and what you want from it. A cylinder that turns smoothly, sits firmly in a solid deadbolt and matches the look of the door is worth keeping, and rekeying gives it a new key for a fraction of the effort of replacement. Replacement earns its place when the hardware is worn, low grade, damaged, a mismatched keyway that cannot join the house key, or when you want a keypad or a heavier deadbolt anyway. A locksmith looks at each door and tells you which one applies.
How the visit goesYour basement tenant has given notice, and a new one arrives on the first. The lock on the separate entrance works perfectly well. You simply want a fresh key for the incoming tenant and for the old one to be retired.
Guelph
How the visit goes
Walking every door that should be included
Before a single cylinder comes out, the locksmith walks the property with you and lists each opening: the front door, the back and side doors, the door from the garage into the house, a walkout basement, a gate with a keyed latch, a shed, a mailbox, and any interior door you want on a key. It is surprising how often the garage's side door or the storm door is forgotten and left on the old key. The list becomes the plan for the visit and, at the end, the record of what was done. A door that is not on the list is not rekeyed, so the walk is worth two careful minutes.
Taking the cylinder out of the lock
Each type of lock releases its cylinder in its own way, and the locksmith works door by door, finishing one before opening the next, so every entry stays lockable throughout. On a knob or lever set, the handle comes off after a retaining clip or set screw is released, and the cylinder slides out of the handle. On a deadbolt, the interior thumb-turn and housing are removed and the cylinder is withdrawn from the outside body. On an older mortise lock, a small set screw on the door edge is backed out and the cylinder unthreads from the case. Nothing is pried or forced; the door and trim stay untouched throughout.
New keys, counted and tried in every door
You finish the visit holding the only keys that work, and you know exactly how many there are. The locksmith cuts the agreed number from the fresh pinning rather than copying one from another, so each is as true as the first, and tries every one in every door it should open before handing them over. Count them, decide who in the household gets one, and put the spare somewhere you will remember. If a door was left on a separate key on purpose, that key is tagged so it does not get mixed into the house set. The whole set fits comfortably on one ring.
Lock Rekeying
In the van
- Pinning tweezers and tray
- Key blanks
- Cylinder shim
- Code cutter or key duplicator
- Replacement cylinder for odd keyways
What affects the quote
Same fees day, night or weekend
1One key group or several
Keying every door alike is the simplest plan. Setting up separate keys for a basement suite, an office or a shed adds a group to pin and label, and the quote shows that as separate work.
2Mailboxes, padlocks and cabinets
Small cam locks on mailboxes and cabinets are usually replaced rather than repinned, and padlocks vary in whether they can join the house key; each of these is priced as its own item.
3Restricted 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.
Lock Rekeying: questions
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.
Do the old keys really stop working?
Yes, at every cylinder that was rekeyed. Once the bottom pins are changed, a key cut to the old combination lifts them to the wrong heights and the plug will not turn. The locksmith proves this at each door by trying the old key after the new one, because any door missed from the list would still answer to the old key. That is also why the walk around the property at the start matters: every door meant to be included has to be on the list.
Will I need to prove I own or rent the home?
Yes, and it is a welcome part of the job. Rekeying decides who can enter, so the locksmith confirms the person asking has the standing to make that decision. For an owner that means photo identification alongside a document that links them to the property, for instance a property tax notice or the closing statement. A manager brings the owner's written authorization. A tenant mentions that the landlord has agreed and will be given a key, since tenancy rules here expect both to hold one.
Change or Rekey Locks

- Lock Replacement & UpgradeEvery morning the front door key needs the same little dance: push in, lift, wiggle, turn.
- Vintage Mortise Lock ServiceThe key turns freely in the round cylinder on the door, all the way around and back, without the…
- Smart Lock InstallationArthritis has made the small house key hard to grip and turn, especially with gloves on in January.
Lock Rekeying near you
Choose a service to see how it works in Guelph. Each page explains the situation it suits, what the locksmith looks at first, how the job is done, and how to look after the hardware afterwards. If your problem sits between two services, either page will get you to the right conversation.