The expertise and professionalism of the Sigma Group allowed the company to gain the trust of public institutions, multinationals and even private individuals.
Centre for Transformation for iron shaping
Certificate of declaration of the Center of Transformation for the shaping of round iron for reinforced concrete, as determined by the Technical Standards for Construction, (DM January 14, 2008).Read more
UNI EN ISO 9001:2008
The Certificate of Quality Management System UNI EN ISO 9001:2008 for the construction and maintenance of civil and industrial buildings, and the manufacture and installation of metal structures.Read more
UNI EN ISO 14001:2004
The Certificate of Environmental Management System UNI EN ISO 14001:2004, for the construction and maintenance of civil and industrial buildings, preparation of steelwork through the processes of plasma cutting, welding, painting and assembly. With the ISO 14001 Maintenance Sigma undertakes to comply with the legal requirements and regulations existing in the environmental field.Read more
Workshop for metal carpentry
As determined by the Technical Standards for Construction, DM January 14, 2008, the Sigma Maintenance Ltd. has requested and obtained by the Superior Council of Public Works, Central Technical Services, the certificate of termination of the Workshop for the production of metal structures.Read more