
Change or rekey · New Tecumseth
Mailbox Lock Replacement in New Tecumseth
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.
Call now · open 24/7(249) 501-0299In plain words
A mailbox lock lives or dies by a handful of measurements: the cylinder's length, its diameter, and the reach and angle of the cam arm that actually catches the door frame when the key turns. Getting a replacement that matches these numbers is most of the job, since a lock that is almost right will bind, sit loose, or fail to latch properly. The visit starts with a tape measure and the old hardware in hand, well before any new lock is chosen.
How the visit goesThe little brass key for your curbside mailbox was on the same ring as the one you lost at the gym last week. The lock itself is fine, but whoever finds that ring now has a way into your mail as well.
Mailbox Lock Replacement · New Tecumseth
How the visit goes

- 1
What became of the old key
The history of the missing or failing key shapes how the visit proceeds. A key still at home but simply worn down is a routine swap. A key lost out in the world, taken by someone who used to live there, or never handed over at a move-in changes the urgency, since a stranger may still be holding something that opens the compartment. A snapped key adds a short extraction step before the old lock comes out. Every version starts with the same honest question: where did the key actually go?
- 2
Taking out the old lock
With the compartment door open, the old lock is usually removed from the inside: a retaining nut is unscrewed with a small wrench or nut driver, or a spring clip is pressed free, and the whole cylinder and cam lift out as one piece. When the compartment cannot be opened this way because the key is lost, snapped, or simply unknown, picking or decoding is tried first, and the lock is drilled only when that is not practical, aimed precisely at the wafers so the plug turns and the housing releases without damaging the door around it. Either route ends the same way, with an open hole ready for the matched replacement.
- 3
A compartment that closes the way it should
Where a bent door or a loose hinge was part of the original problem, the compartment now closes flush and the new lock turns without the key catching partway. Give the door a firm close and a turn of the key once more before walking away, checking that the latch seats fully rather than resting on the edge of catching, which is the same small movement that let the old lock's wear go unnoticed for so long.
In the van
- Wafer tumbler pick set
- Lock de-icer
- Manufacturer-approved cylinder lubricant
- Retaining nut or clip
- Key blanks
What affects the quote
- 1
Cam length and orientation
An uncommon cam length, angle, or throw can mean sourcing a less standard replacement or adapting an available one, rather than reaching for the most common size on the shelf.
- 2
Type and brand of mailbox
A standalone curbside box, a house door's built-in slot, and a compartment in a large building panel use different hardware, and some brands are easier to source matching replacement cylinders for than others.
- 3
Whether a matching cylinder is still made
An older or discontinued mailbox brand can mean adapting a close equivalent lock and cam rather than an exact factory match, which takes a little extra fitting work.
Same fees day, night or weekend.
Mailbox Lock Replacement: questions
Can I get a spare key cut for a family member later?
Yes, either during the same visit or afterward, as long as it is cut from the new cylinder's combination rather than copied from an already-worn key. Cutting it while the locksmith is present avoids a second stop at a hardware store and confirms the spare works before anyone relies on it.
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 you fix a mailbox door that is bent or won't close?
Yes. A compartment door that has been pried at, dropped on a loose hinge, or pushed out of square over time is straightened or adjusted as part of the same visit, since a bent door will fight even a brand new lock. The door is worked back into alignment, the hinge or latch checked, and the new lock fitted only once the door closes flush again.
Simcoe, Ontario
New Tecumseth information
- Town
- New Tecumseth, Simcoe, Ontario
- In business
- 26 years
- Hours
- Open 24/7 · nights, weekends and holidays, same fees
- Phone
- (249) 501-0299
- Visits
- On-site assessment preferred. Request a visit or call.
What the census means at the door
32%
Newer homes. About 32% of homes in New Tecumseth were built in 1980 or earlier, according to the 2021 Census.
New homes frequently come with strikes held by short screws into soft framing. Replacing them with longer screws that reach the stud is inexpensive work that adds real strength, and it is one of the first things a locksmith checks in a newer area.
71%
Mostly houses. Single-detached houses make up about 71% of homes in New Tecumseth (2021 Census).
Detached homes are exposed to weather on every side, so exterior locks see rain, salt and freezing air directly. Choosing hardware with a good finish and a cylinder that tolerates cold, then lubricating it properly, keeps every door turning through winter.
Open 24/7
Request a visit
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.
Call now · open 24/7(249) 501-0299- On-site assessment preferred
- Same fees day, night or weekend
- 26 years in business




