Founding
june 2004
Establishment of Janssen Wiersma Group. (With Boon Bedrijfsdiensten and De Lier Dienstverlening).
Cleaning requires human effort. That is why our employees are our calling card. Not only because of excellent service, but also because of the neat and professional appearance. After all, everyone who works for us has completed extensive internal training. All aspects of the cleaning profession like safety, use of materials and social communication were discussed and trained. This way you will never be faced with any surprises. Our people know exactly what they should and should not do. It goes without saying that we work in accordance with all current and strict ARBO guidelines. High-quality and safe service simply comes first!
Our story
Caretaker
march 2010
Deployment of the first caretaker
Relocation
may 2008
Moving to the Henricuskade in The Hague.
On the road
mei 2008
Our fleet has been expanded, we are now even more visible in the The Hague region.
New logo
may 2019
The logo and website are undergoing a restyle.
New corporate identity
may 2019
The corporate identity and communication tools such as business cards have also been updated.
Cleaning requires human effort
march 2020
With more than 45 employees, we are expanding our working area to Utrecht.
Cool projects
june 2022
We already have many beautiful projects in our portfolio, including the New Babylon complex and the Zalmhaven Tower. We can now also add The Roofs to this list.
Expanding...
march 2024
We now have 35 company cars driving around, more than 75 employees and our working area has been expanded to Zaandam.
Janssen Wiersma Groep 20 years!
june 2024
