Losing business keys in Amsterdam means a set that may open several doors at once is unaccounted for, which usually makes it a rekeying decision rather than a single lock change.
Staff keys are rarely one key. A key holder typically carries the front door, an internal door or two, sometimes a stockroom or a server room, and increasingly a tag as well. When that bunch goes missing, the exposure is the whole set and not just the entrance.
The first hour
Establish exactly what was on the ring, and whether anything on it identified the business or the address. A branded fob, a parking pass or a delivery note in the same bag turns an anonymous loss into a specific one.
Secure the highest value doors first: cash, stock, server room, anything with client data behind it. The front door can wait an hour if a stockroom cannot.
Rekeying without stopping the business
Where a master key system is in place, the point is to change what the lost keys reached without invalidating everyone else’s keys. That takes a plan rather than improvisation, and it is why a properly documented system pays for itself at exactly this moment.
Most of this work is better done in the evening or at the weekend, when nobody is waiting on a door. We work around your building’s access rules and sign in like any other contractor. The details are on our locksmith services page.
Insurance and the paperwork afterwards
Business contents policies generally require reasonable steps once keys are known to be missing. An itemised invoice showing which doors were rekeyed, when, and to what standard is what makes a later claim straightforward. Update your key register at the same time, including who received which new key, because reconstructing that a year later is guesswork.
Telling staff without causing alarm
A short internal message works better than silence. Say which doors are being rekeyed, when the new keys will be issued and who to collect them from. Silence produces rumours and, worse, produces people propping doors open because their key stopped working and nobody explained why. The practical failure after a rekey is almost always communication rather than hardware.
The doors nobody lists
Post rooms, cleaning cupboards, roof access, meter rooms, a shared corridor door in a multi-tenant building. These rarely appear on the key register and they are regularly on the ring that went missing. Walk the floor once with the register in hand before deciding what needs to change, because rekeying the obvious doors and leaving the roof hatch is not a result.
Reviewing the system afterwards
A lost bunch is a good moment to ask whether the current arrangement still fits the business. Systems built up door by door over ten years usually cannot be extended cleanly and cannot be partially rekeyed, which is exactly what you need on a day like this. A properly planned master key system fixes that for the next time, and there is always a next time.
Frequently asked questions
More answers sit on our locksmith FAQ page.
Does the whole system have to change?
Not necessarily. A well planned master system allows part of it to be rekeyed.
Can you work outside office hours?
Yes, evenings and weekends, at no different rate.
Can you invoice the company?
Yes, with a purchase order reference if your finance team needs one.
How fast can you respond?
Usually within 30 minutes for the urgent doors.
Do you update our key register?
Yes, we record what was fitted and which keys were issued.
Business keys unaccounted for?
Call +31 (0)20 210 1986 for an immediate response, or plan the work through our contact page.



