Locksmith in Firth's Corners, OntarioVintage hardware,cared for properly

What the key was in: a front door deadbolt, a knob, a padlock, the driver's door or the ignition. Whether any of the key shows above the face. Whether the key turned before it broke and whether the door is locked now. Whether anything has been inserted since. Whether you have the other half, a spare or the key code. And whether the property is owned, rented or managed.

Usually, yes. The mechanisms are simple and robust, and what fails is nearly always a spring, dried grease or wear on one part, all of which are repairable on a bench. Replacing the lock with a modern cylindrical set means boring a large hole through the door stile and filling the old pocket, which is more work and changes the door for good. A rebuilt case keeps the original trim and keeps the door intact.

Yes, provided the padlocks themselves are a type built to be rekeyed or matched, which is a feature of the specific model rather than something price or quality decides. The locksmith either rekeys the existing padlocks to a shared combination or replaces any that cannot be rekeyed with new ones cut to match. The result is one key working the front gate, the side gate and the shed, instead of a separate key for each, though a utility gate can be left on its own key.

Yes. A safe with no known history is treated as an unknown from the start: the locksmith identifies the make, model and lock type directly from the hardware and works through the same manipulation, decoding or reset options used on any other safe. Proof of the purchase or transfer establishes your authority to have it opened, and the process afterward does not depend on any prior record existing.

There is no fixed interval. Rekey on events rather than on a calendar: a key not returned, a lease change, a break-in, a renovation crew finished, or a key count that no longer matches the register. Businesses with a good register and a restricted keyway often go years between rekeys because nothing prompts one. A yearly check of the register against the keys on the hook is the habit that tells you when the time has come.