3-Gen delivers expert services in the installation, repair, and management of high voltage cable systems across the UK and beyond. With decades of specialist experience, we are a trusted provider for complex power infrastructure works on both land and at sea.

Our focus is on delivering safe, efficient, and technically sound solutions for high voltage networks ranging from 11kV up to 300kV, with particular expertise in fluid-filled and XLPE cable systems.

We work collaboratively with clients to meet demanding project requirements, offering flexible support at every stage—from initial planning and procurement through to installation, and testing.

At 3-Gen, we bring together a team of seasoned professionals—engineers, jointers, site supervisors, and project leads—each with the skills and certifications needed to execute high-stakes work in challenging environments.

Our commitment is to deliver reliable results, minimise risk, and support the long-term resilience of the energy grid. With every project, we aim to exceed expectations and ensure performance you can count on.