Within Dolmans, the various subsidiaries work closely together. This means that we regularly call on Trition for the application of drying techniques, heating, ventilation and carrying out leak detection, thermography and structural investigation, for example. For daily and changeover maintenance, as well as renovation/major maintenance and new builds, we also call on our sister company Qbuild.


Trition is a service company, specialised in identifying, limiting and preventing damp and water-related problems. With multiple branches around the country, Trition guarantees national coverage. The expert and well-trained employees are ready to assist you 24 hours a day 7 days a week.

Trition’s service provision at a glance:

Trition’s approach is based on offering solutions. The process is started with an analysis of the damp problem observed. In order to then draw up an action plan to find a suitable solution together and guarantee that it can’t happen again. Trition’s core values are: Expert, Innovative, Pragmatic and Solution-focused.


From renovation to maintenance and damage repair. Qbuild offers a wide range of construction work. This could be projects or periodic work. Qbuild is made up of two disciplines, Reco Herstel and De Jong Bouw. Both have their own specialism but, as they are part of the Qbuild Group, they make use of each other’s knowledge and skill. With 10 branches spread throughout the Netherlands, Qbuild is literally close to its customers.

Qbuild’s service provision at a glance:

Excellent craftsmanship, good service and clear work agreements are the basis of the Qbuild approach.