Voltaz Sàrl is an independent inspection body (OIBT) and an electrical diagnostics office. It carries out low-voltage inspections required by ordinance, including ownership-change checks, periodic inspections (1, 5, 10 or 20 years), final/reception tests, photovoltaic system checks (DC and/or AC), charging-station inspections for electric vehicles, and electrical and consumption diagnostics. Voltaz holds a general inspection authorization issued by the Federal Inspectorate for Heavy Current Installations (ESTI) and issues objective inspection reports with photographic documentation.