It is very well possible to clean sustainably. Consider using cleaning agents as sparingly as possible, reducing energy use as much as possible and handling trash responsibly.

Cleaning services have been contracted out to Asito on De Uithof and to Westerveld in the city centre. All involved parties have signed the Code Responsible Market Behaviour (Dutch name: Code Verantwoordelijk Marktgedrag). This means that the quality of the provided services, a healthy pressure of work and the joint commitment to realise goals regarding sustainability, innovation and social policy are considered.

Schoonmaker dweilt de vloer.
A cleaner mopping the floor.


Asito and Westerveld use products that affect the environment as little as possible, such as microfibre cloths and cleaning agents with EU Ecolabel certifications. Floors are cleaned without chemicals. The corridors of the stables in which the Faculty of Veterinary Medicine keeps its horses, are cleaned with a sweeper machine instead of water.


Asito offers some vacancies to employees who are far removed from the job market. In 2015, Asito and Utrecht University shared a place in the finals of the Best Practise Award for the way in which cleaning services are contracted out, planned and carried out. Companies were challenged to offer solutions for the improvement of services and the quality of labour, such as setting up an education plan for cleaners.

Westerveld compensates for all the litres of water used in cleaning by donating the same amount of litres of clean drinking water to developing countries via Made Blue.


Wherever possible, the cleaning companies clean during the day. This has a wide range of benefits for the cleaning crews and the university.

  • Cleaning crews feel more involved with and connected to the university while cleaning during the day. This results in better quality and less coming and going of cleaning staff.
  • Direct contact between the university staff and cleaning crews means the cleaning can be better fine-tuned to the primary process.
  • Daytime cleaning means buildings do not have to be open in the evening anymore, which saves on energy (light and climate) and security.


Asito and Westerveld play big roles in the separation of waste. The suppliers provide the transport from the trash cans to the separated-waste containers and provide data to the university by weighing the separated waste.