VHM obtained its quality certification according to the NP EN ISO 9001 standard in june 2004, and sunce September 2014 it has also been certified under the Health and Safety Management Systems (OSHAS 18001 / NP 4397) and Environment (ISO 14001), having made the transition from the normative reference of the Safety and Health Management System certification to NP ISO 45001 in the external audit that look place in July 2020.
It is also qualified by LNEC as General Manager for the Quality of Construction Projects in the category of buildings and monuments (Class 8), Roads and Urbanization Works (Class 8) and Hydraulic Works (Class 8).
In 2018, VHM was highlighted with another certification: Urban, Intelligent and Sustainable Rehabilitation.