we always tackle new projects with certified quality

We have certificates which guarantee quality service and successful result.

• ISO 9001 Quality Management System. (see)
  LGAI Technological Center, S. A. certifies that Duinsa’s quality system fulfils norm ISO 9001:2008 requirements.
• Building Trade. (see)
  Building Trade in Vallès Oriental certifies that Duinsa is a traded company.
• Building AEQT-AEST. (see)
  The Monitoring Committee AEQT-AEST (Associació Empresarial Química de Tarragona – Associació d´Empreses Serveis de Tarragona) has qualified Duinsa as company of habitual maintenance of Industrial Construction – Civil Work.
• Building Contractor Certificate. (see)
  General vice-chairman of Contractors Classification and Contracts Registry certifies that Duinsa is a Building Contractor registered company.
• Quality Policy Edition E. (ver)
  Update according to UNE-EN ISO 9001: 2015 standard