Home | Jobs | Resources | Quality | Contact us | At ELDA Instalaciones Telefónica SL we have been working for the main telecommunications companies for several years. Our activities include the installation and maintenance of cable, copper and Fiber Optic networks, as well as the installation and maintenance of STB, ISDN, Switchboard, ADSL and television lines, over ADSL and cable, at home for the end user. The human and technical resources that we have, together with the accumulated experience, allow us to carry out these jobs offering the highest level of quality.