Sound familiar?Cobourg
- The call
- A roommate moved out on bad terms and says the key was left on the counter. It was not. You have already changed the Wi-Fi password, but the front door still opens for a key that could be anywhere.

The keys fell out of a gym bag somewhere between the arena and the parking lot. The ring has a tag from the building with the unit number on it.
When a key disappears, cutting yourself another copy solves the wrong half of the problem. You can get in again, but so can whoever finds the original. A same-visit rekey turns that around: the locksmith works through each cylinder the missing key operated, fitting new bottom pins on a conventional lock or resetting a homeowner-rekeyable one through its own procedure, and refits the lock to the door. The lost key still slides into the keyway but no longer lifts the pins to the right height, so it turns nothing. You leave with fresh keys cut on site and the same locks you already had.
Sound familiar?Cobourg
Lost Keys — Same-Visit Rekey · Cobourg

Scene 1
Rented and shared buildings add a boundary that the locksmith maps early. A tenant's suite door is theirs to use but a lock change is agreed with the landlord, who receives keys as well. A condominium suite cylinder may sit on the building's master system, so its rekey is planned so the master still works, and the lobby, garage and amenity doors stay with the corporation. A small business rekeying a shop door checks what the lease says about the landlord holding a key. Sorting this out on the doorstep keeps every party informed and lets the work proceed with no surprise phone calls the following week.
Scene 2
Some newer residential locks carry a small slot beside the keyway that lets a homeowner change the key with a learn tool, but only while a working key is in hand. When that key is the one that was lost, the locksmith uses the manufacturer's reset tool instead: the cylinder is pulled from the lock, seated in the reset fixture, and its internal sidebar and wafers are returned to a blank state. A new key of the right blank is then inserted, the learn tool sets the cylinder to it, and the lock goes back on the door taking the new key and rejecting the old one.
Scene 3
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.
What shapes the quoteCobourg Lock & Key Co.
FeesSame any hour
Your suite door is generally the one you can act on, and it may sit on a building master system, so the locksmith plans the rekey so the master still operates while the old change key stops working. Lobby doors, the parking gate, amenity rooms and the mailroom belong to the corporation; report a lost fob or key for those to the property manager, who deactivates or reissues it. The locksmith can help sort which is which.
When the hardware itself is the weak point: a plug worn oval, a cylinder eaten by salt from a driveway-facing door, a light knob lock on an exterior door, a keyway with no blanks left in supply, or when you want a different style, a heavier deadbolt or a keypad. In those cases a new lock keyed to match the rest of the house is fitted in the same visit. Everything else is rekeyed.
The opener on the garage ceiling holds a memory of every remote paired to it, and it can be erased in one step so the lost remote is forgotten. The remotes still in the household are paired again afterwards, and a keypad on the outside of the garage gets a new code if you have one. The locksmith can do this during the visit, and it takes only a few minutes at the opener.
NorthumberlandOntario
Lost Keys — Same-Visit Rekey · Alnwick/Haldimand, Brighton, Cramahe, Hamilton, Gosport, East Colborne, Coverdale, Norham, Codrington, Orland, Smithfield
Every square is one home in a hundred.
On-site assessment
The keys fell out of a gym bag somewhere between the arena and the parking lot.
(289) 677-1674, open 24/7.
On-site assessment preferred · (289) 677-1674, open 24/7