GIS Installation, Maintenance & Emergency Support

At Vigil Energy, we specialise in the installation, maintenance, and emergency repair of Gas-Insulated Switchgear (GIS), delivering reliable solutions for high-voltage networks. Our internal team of trained technicians and engineers ensure every installation is carried out in a clinically clean environment, adhering to the highest safety, quality, and operational standards.

From planned maintenance to urgent fault response, we provide fast, efficient, and safe services to keep your network running smoothly. We offer 6-monthly service inspections with Basic, Standard, and Comprehensive coverage, along with mechanical and electrical upgrades to ensure your assets remain reliable and up to date.

With 24/7 phone support and emergency call-out, Vigil Energy can guarantee rapid response and attendance within 12 hours for UK mainland sites with a service agreement offering Gas Handling, Leak Detection, Recovery and repair for pre-registered systems, gasses are held for registered clients at their request, minimising downtime and ensuring your network remains fully operational, maintaining output to your DNO or transmission line.

Vigil Energy provides Smart Condition Monitoring and Diagnostics, utilising advanced sensors, trend analysis, and automated alerting systems to monitor partial discharge, gas density, and equipment health in real time. We also deliver Upgrade and Retrofit Solutions, modernising existing GIS installations by replacing ageing components, enhancing insulation systems, and adapting infrastructure to meet evolving standards and regulatory requirements. Our Gas Services include comprehensive leak detection, gas recovery, refilling, and recycling, ensuring full compliance with SF₆ handling regulations while offering environmentally responsible F-gas-free alternatives to support clients’ sustainability goals.