

Lockouts · Hamilton
Lost Keys — Same-Visit Rekey
Your purse was taken from the back of a chair at a restaurant.
In plain words
A missing key is also the moment a household can stop carrying four. Because a rekey sets a fresh combination in every cylinder anyway, the locksmith can set the same combination in all of them, provided they share a keyway family, so the front door, back door, garage entry and side gate open with one key. Where a cylinder belongs to a different family, it can be swapped for one that matches during the same visit. The result is a single key on each ring, fewer copies to keep track of, and the certainty that the lost one operates none of them.
How the visit goesThe spare under the planter by the side door is gone. Everyone in the family swears they did not take it, the planter has clearly been shifted, and you have no idea how long ago that happened.
Lost Keys — Same-Visit Rekey
How the visit goes


Reading each cylinder before it comes off the door
Every cylinder on the list gets a close look while it is still in the door. The keyway shape and the maker's stamp tell the locksmith which pin kit fits and whether the keys can be cut on the van. The feel of the plug with a working key, if one exists, says whether the pins and springs are healthy or tired. Corrosion on the face, a wobbly plug or a key that needs a jiggle points to a cylinder that will benefit from cleaning or replacing while it is out. A homeowner-rekeyable cylinder, recognisable by its small reset slot beside the keyway, calls for a different tool and gets noted.
Testing every key in every lock before leaving
The last part of the work is deliberate repetition. Each new key is tried in each cylinder it should open, with the door open and again with it closed and bolted, so a pin that feels fine on the bench is proven on the door. The old key is tried too and shown turning nothing. Cylinders that were dry or gritty get the lubricant their maker specifies, a puff of graphite, PTFE or a specified liquid product, and a few cycles to spread it. Screws are checked snug, covers seated, and the pile of old keys and any swapped cylinders is handed to you or taken away as you prefer. Only then is the key count confirmed and written down.
A known number of keys, with names on them
You leave with a set of keys whose count you agreed and can name: one each for the adults, one for the neighbour, one in the lockbox. That is the count of authorised keys, not proof against every copy unless the key system also controls its blanks. A small habit keeps it honest: when a key goes to a contractor, a cleaner or a house sitter, note it and get it back, or rekey when the arrangement ends. From today the answer is a figure you wrote down, not a guess about who might still hold something from years ago.
Lost Keys — Same-Visit Rekey
In the van
Rekeyable-cylinder reset tool
Dry graphite or PTFE lubricant
Code key machine
Key blanks in common keyways
Pin tweezers and shims

Lost Keys — Same-Visit Rekey
What affects the quote
The kind of lock each cylinder lives in
Knob, lever, deadbolt, mortise and rim cylinders come out of the door differently and take different care to refit. A mortise cylinder in a century home is more involved than a builder-grade knob.
Master-keyed building cylinders
A condominium or apartment suite cylinder on a building master system is pinned so the master still works, which takes coordination with management and a little more time than a stand-alone house door.
Upgrades chosen during the visit
Some people take the moment to move to a heavier deadbolt, a restricted keyway, a reinforced strike or a lockbox for the spare. None of it is required; each option is a separate line.
What to have ready
- Which doors did the missing key open: front, back, side, garage, shed, gate?
- Was a garage remote, building fob or car key on the same ring?
- Have any of the locks been stiff, sticky or hard to turn lately?
Lost Keys — Same-Visit Rekey: questions
QuestionsDoes rekeying weaken the lock?
No. On a conventional pin-tumbler cylinder, the housing, springs and top pins are untouched and only the bottom pins are exchanged for the same grade of part the lock left the factory with; a homeowner-rekeyable design is reset through its own procedure instead, and a high-security cylinder may also need its sidebar or finger-pin elements reset. If the locksmith notices worn parts, replacing them is offered as a separate step, leaving the lock stronger, not weaker.
How long does a whole-house rekey take?
Plan on an hour or two for a typical house with three or four cylinders, including the walk-through, identification, pinning, cutting and testing. Each additional cylinder adds a little, as does swapping a cylinder to bring a mismatched door onto the same key, resetting a homeowner-rekeyable lock or clearing a garage opener. The locksmith gives a realistic window on the phone once the list of doors is known.
What should I do before the locksmith arrives?
Walk the property and note every door the missing key opened, including the garage, shed and gate. Gather any keys you still have, since a working key helps in reading each cylinder. Have identification and, for tenants, something showing the tenancy. Decide roughly how many keys you want and whether you would like all doors on one key. If a garage remote or building fob was lost too, mention it when you book.
Related services

- Business Lockout ServiceA cook stepped into the alley with the recycling and the rear door swung shut behind him.
- Broken Key ExtractionYou were locking up on the way out when the key broke in the lock.
- Break-In Damage Lock RepairPolice have come and gone, the occurrence number is on a sticky note, and you are standing in a cold hallway looking at a splintered frame, wondering how the house gets locked before everyone tries to sleep.