You can rely on De Boer nv for the waterproofing of your projects.

De Boer carries out liquid waterproofing work on flat roofs, terraces, balconies, swimming pools, ponds, concrete structures and parking buildings. De Boer’s expert staff carries out all work which requires durable waterproofing.

Roof leaks can have grave consequences. De Boer nv has a fast-response team that carries out repairs on roofs, whatever the roof covering. Our skilled technicians will come on site as quickly as possible and will make your roof waterproof again using De Boer’s liquid roof covering systems, i.e. avoiding the use of a naked flame.


  • Advice
  • Training
  • Construction start-ups



Our advisors will support you from the start of your project. Based on a site visit and possibly also a surface-adhesion test, they will suggest the best system. Do not hesitate to request a non-binding analysis via e-mail.


A durable sealing which adheres well can only be achieved if the work is carried out properly. That is why we attach great importance to training our certified partners. We organize practical training seminars for you and your staff, either in your company or in our own training center. Get in touch with us for further information and arrangements.

Starting a construction site

De Boer Liquids also provides support when projects are kicked off, as well as in the entire course of the project. We can give a brief training when the work actually starts. But we can also have our own staff work by your side in the project’s starting-up phase.