Bringing an Old Royal Mail Post Box Back to Life in Bournemouth
- james07406
- Apr 27
- 2 min read
Every week as a locksmith, you see a mix of the familiar and the unexpected — jammed uPVC mechanisms, worn cylinders, lost keys, the usual run of callouts across Bournemouth, Poole and Christchurch. But every now and then, a job comes along that reminds you why you fell in love with the trade in the first place.
This week, that job was a Royal Mail post box.
A customer — a retired postman — had bought an original cast‑iron Royal Mail box to install in his garden. It was a lovely piece of history, heavy, solid, and still fitted with its original Chubb 5‑lever lock. The only problem? No keys. And replacement locks for these old boxes are, frankly, like gold dust.
Why Replacement Locks for old royal mail post boxes Are So Hard to Find
Chubb stopped producing many of their older lock ranges years ago. The post box locks in particular were made in small batches, built to last, and rarely replaced. Most surviving examples are still attached to boxes in service or sitting in collections. When they do appear for sale, they’re usually incomplete, seized, or missing keys themselves.
So sourcing a direct replacement wasn’t realistic.
But that didn’t mean the job couldn’t be done
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The Old‑School Locksmithing Approach
Instead of replacing the lock, I took the traditional route: hand‑cutting a key to fit the original mechanism.
That meant:
Identifying a suitable key blank that matched the old Chubb profile
Stripping and inspecting the lock to make sure the levers were intact
Reading the lock by feel — a skill that only comes with years of working on lever mechanisms
Filing the blank to match the exact heights needed for each lever
Testing, adjusting, and refining until the key operated smoothly
This is the kind of work that doesn’t involve power tools, drilling, or modern key machines. It’s patience, precision, and a bit of detective work — the sort of locksmithing that used to be standard decades ago
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A Working Lock Once Again
After some careful shaping and testing, the new key turned perfectly. The old Chubb lock — probably untouched for years — was working again exactly as it should.
For the customer, it wasn’t just a lock. It was part of his personal history. He’d spent a career delivering letters, and now he’s got a piece of that world in his garden, fully restored and usable.
For me, it was a reminder that this trade is as much about craft as it is about convenience.
Why Jobs Like This Matter
Most locksmith work is fast‑paced and practical — get someone back inside, repair a mechanism, secure a property. But every so often, a job comes along that lets you slow down and work with something that has character and history.
Restoring an old lock instead of replacing it isn’t always the quickest option, but it’s often the most satisfying. And in this case, it kept an original piece of Royal Mail engineering alive.
If you’ve got an unusual lock, an old mechanism, or something you’re not sure can be repaired, feel free to get in touch. I’m always happy to take a look — sometimes the old ways still work best.
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