A commercial locksmith at the Zuidas handles office lockouts, master key systems and access hardware in the towers and business premises around Gustav Mahlerlaan, Strawinskylaan, Parnassusweg and the WTC.
An office lockout is not the same problem as a home lockout. Nobody is standing on a doorstep in the rain, but forty people are standing in a lobby and a meeting starts in twenty minutes. What matters here is speed, discretion and not leaving a mess behind.
The three calls we get most from this area
First, a single door that will not open: a server room, an archive cupboard, a director’s office where the only key holder is on a plane. These are usually opened without damage, and where a lock has to be sacrificed we replace it on the spot so the room is secure again before we leave.
Second, a departing employee. When someone leaves with a key that never came back, rekeying the affected doors is straightforward. Where a master key system is in place, the point is to change what that person could reach without invalidating everyone else’s keys, which takes planning rather than improvisation.
Third, hardware that has simply worn out. Doors in a busy office cycle hundreds of times a day. Closers, latches and panic bars fail on a schedule, and they usually fail at the worst moment.
Master key systems
A well designed master key plan means a facility manager opens everything, a floor manager opens their floor, and a cleaner opens what they need and nothing more. Designing that properly at the start saves a great deal later, because a system built ad hoc becomes impossible to extend. We plan, supply and maintain these systems, alongside the work described on our locksmith services page.
Fit-outs are the other regular reason we are here. When a floor is refurbished, keys travel between contractors for weeks and the tenant inherits whatever situation that leaves. Rekeying at handover, before the first employee moves in, is the cleanest moment to reset access, and it costs far less than doing it door by door once the floor is occupied and every meeting room is booked.
Outside office hours
Most commercial work at the Zuidas is better done in the evening or at the weekend, when corridors are empty and nobody is waiting on a door. We work around your building’s access rules and sign in like any other contractor.
Documentation your facility team can use
Corporate buildings run on records. After any work we leave a written note of which doors were touched, which cylinders were fitted, how many keys were issued and to whom, plus the certification of the hardware. That register is what makes the next change straightforward instead of guesswork, and it is what an auditor or an insurer asks for after an incident. Where a master key plan exists, we update it rather than leaving your facility team to reconstruct it from memory a year later.
Frequently asked questions
More answers sit on our locksmith FAQ page.
Can you open an office door without damaging it?
In most cases yes. Where the cylinder has to be drilled, we say so first and replace it immediately.
Do you work with building management?
Yes. We follow the access and contractor procedures of the building.
Can you rekey only part of a master system?
Yes, provided the system was planned properly. We check the plan before quoting.
Do you handle panic bars and emergency exits?
Yes, including repair and replacement of failed closers and latches.
Can you invoice the company rather than an individual?
Yes, with a purchase order reference if your finance team requires one.
Office door out of action at the Zuidas?
Call +31 (0)20 210 1986 for an immediate response, or set up a planned visit through our contact page.



