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Cherry HeightsLock Services · HamiltonOpen 24/7(289) 203-0966Request a visit
Detached threaded cam lock and mounting washer on a workbench in front of closed mail compartments. — Mailbox Lock Replacement, Hamilton

Change or rekey · Hamilton

Mailbox Lock Replacement in Hamilton

The key still turns, but lately it spins a half-circle further than it used to before the little door lets go, and some mornings it takes a second try. The small cam lock inside is simply worn out.

Mailbox Lock Replacement

In plain words

Moving into a new place is a common moment for this service, since a mailbox compartment rarely comes with a documented history of who was handed a key. Rather than trust hardware with an unknown past, the cylinder and cam are swapped for new ones sized to the same compartment door, two fresh keys are cut, and whatever key the previous resident or owner may still be carrying stops being useful from that afternoon onward.

Sound familiar?

The mail slot on the shop's exterior wall has a small compartment lock that a former employee still has a key to, months after they left. Nobody on staff can say with any confidence who else might hold a copy.

How the visit goes

Hamilton

How the visit goes

  1. Measuring the cylinder

    The cylinder is measured from the face that sits flush with the compartment door to the back of the housing, and that length has to match the thickness of the material it passes through. Diameter matters just as much, since the hole already cut in the door will not change to fit a lock that is slightly too wide or too narrow. A tape measure and the old lock, still in hand, settle both numbers before a replacement is chosen, which is what keeps a swap to a single short visit.

  2. Cutting and testing new keys

    Two keys are cut from blanks that match the new cylinder's keyway, using a key cutter rather than copying a worn original, so both keys operate crisply from the first use. Each one is tested in the lock directly, opening and closing the compartment door a few times, before either key leaves the locksmith's hand. If the household wants extra copies for a second adult or a family member picking up mail, those are cut and tested during the same visit rather than left for a hardware store later.

  3. If the whole panel was done together

    When several compartments were changed in one visit, each resident walks away with their own working keys rather than a shared set, and the property manager holds a simple list matching compartment number to resident and key count. Neighbouring doors that were not part of the request were left exactly as they were, so nobody on the panel notices a change except the households whose locks were actually swapped that day.

Mailbox Lock Replacement

In the van

  • Retaining nut or clip
  • Wafer tumbler pick set
  • Nut driver and screwdrivers
  • Key cutter or duplicator
  • Drill and drilling guide

What affects the quote

Same fees day, night or weekend

  1. 1Condition of the compartment door

    A door that has been bent, pried at, or knocked out of alignment on its hinge needs straightening alongside the lock, which is separate work from the lock swap itself.

  2. 2Access to the compartment

    A ground-floor mailbox or a lobby panel with easy entry is straightforward to reach. A building requiring a call to reception, an escort, or a separate access arrangement adds a step before work can start.

  3. 3Number of compartments involved

    A single household's mailbox is the simplest visit. A property manager asking for several compartments changed together, or a family bringing more than one door onto matching keys, naturally makes for a longer job with more hardware.

What to have ready

0 of 3 ready

Call (289) 203-0966

Mailbox Lock Replacement: questions

Is it common for a previous owner or tenant to keep a mailbox key?

It happens more often than people expect, especially in a building where compartments changed hands with a single set of keys and no clear record of who returned what. Replacing the lock rather than simply asking around settles it, since a new cylinder makes any key still out there, regardless of who holds it, stop working.

What happens to the old lock and the old key afterward?

The old cylinder is removed and handed to you or taken away, whichever you prefer, and any key still floating around no longer fits anything once the new lock is seated. If the old lock was drilled out, the leftover pieces are shown to you so it is clear what was removed and why.

Can a business's mail slot lock be replaced the same way?

Yes, a commercial mail slot or parcel compartment uses much the same small cam or wafer lock as a residential mailbox, and the same measuring and fitting process applies. Employee turnover is a common reason a business chooses to replace rather than simply live with an uncertain number of old keys still in circulation.

Change or Rekey Locks

Mailbox Lock Replacement near you

Think of this as the workshop list for Hamilton. Emergency lockouts and key extraction. Rekeying after a move or a staff change. Lock replacement and deadbolt installation. High-security cylinders and reinforced strikes. Commercial hardware, closers and master keys. Safe opening and service. Key cutting for house and car.

Open 24/7 · call(289) 203-0966Request a visit