Mailbox Lock: Key Copy and Replacement

Lost mailbox key or broken lock? Key copying, replacement of standardised building mailbox locks and master key systems. A practical guide in Brussels.

5.0/5 127 Google reviews
Professional locksmith Janssens opening a door in Brussels - fast 24/7 emergency service

It is the small locksmithing problem everyone postpones — until the day the mail piles up behind a little door that no longer opens. Lost mailbox key, lock spinning loose, a bank of boxes to replace in a building: here are the solutions, from the simplest to the most complete.

Lost key: copy first, replace second

If someone in the building or the family still has a copy, the fastest solution is key duplication — mailbox keys are part of our key duplication service, alongside building keys, badges and Vigik keys.

No key left in circulation? No need to force the little door: we replace the mailbox lock — most Brussels buildings use standardised locks whose common models we carry, and you leave with brand-new keys.

Broken or forced lock

A key spinning loose, a sticking cylinder, or a box forced after an unwanted visit to the hallway: the mechanism is replaced quickly and cheaply — one of our simplest interventions. The price is announced by phone before we travel, and the job can piggyback on another call-out in the building.

Property managers and condominiums: master key systems

For buildings, we create master key systems: a single resident key opens the front door, the garage and the mailbox — while the property manager keeps control of communal access. Handy at tenant turnover: one cylinder is replaced without touching the rest. See also our cylinder replacement service and our condominiums and property managers page.

In practice

Call 0495 205 400, with a photo of your box's lock if possible: we identify the model, announce the price, and come with the right mechanism. Free quote, invoice provided — including for property managers.

Need a locksmith now?

We arrive in 30 minutes in Brussels and surroundings

5.0/5 127 Google reviews

What our customers say

5.0/5 — based on 127 Google reviews

Real Google reviews from our customers in Brussels and Brabant.

★★★★★
Great service! I was locked out of my house, and within 30 minutes a locksmith arrived and resolved the problem. A truly fast and efficient service.
Victoria M. Google reviews
★★★★★
I'm very satisfied! Exceptional work, fast and good customer service! Highly recommended!
Guido T. Google reviews
★★★★★
Fast service, very helpful and managed to get my door open.
Ogulcan A. Google reviews
★★★★★
Great service. Very friendly staff. Efficient and fast. Highly recommended.
Youssef E. Google reviews
★★★★★
Great service! Many thanks for the excellent work!
Renan S. Google reviews

Frequently asked questions

Can you copy a mailbox key?
Yes — mailbox keys are part of our key duplication service, like building keys, badges and Vigik keys. It is the fastest solution if a copy is still in circulation.
No key left: does the box have to be forced?
No. We replace the mailbox lock — most buildings use standardised locks whose common models we carry. You leave with new keys, no damage.
Do you handle the mailboxes of an entire building?
Yes, for property managers and condominiums: batch replacement and master key systems (one resident key for the door, garage and mailbox). Invoice provided for the co-ownership.
5.0/5 · 127 Google reviews
0495 205 400 WhatsApp