HV & LV Jointing & Terminations

HV & LV Cable Jointing

Certified Jointing Services for High & Low Voltage Cables

We provide professional HV and LV cable jointing services across the UK for private networks, utilities, and infrastructure projects. Our experienced jointers work with all cable types and voltage levels, ensuring safe, reliable connections that meet regulatory standards.

Reliable Jointing for New Installations & Fault Repairs

Cable joints are a critical part of any distribution network. We deliver high-quality jointing for new projects, system upgrades, extensions and fault recovery. Every joint is installed, tested and sealed using industry-approved materials.

Our jointing services include:

  • Heat shrink and cold shrink jointing
  • Resin and mechanical joint systems
  • Straight joints and transition joints
  • Terminations for indoor and outdoor use
  • Link box and joint bay installations
  • Jointing for XLPE, PILC and waveform cables
  • Live and dead jointing on LV networks
  • plug in and removable terminations

We handle joints up to and including 33kV on private networks.

1.3 HV & LV Cable Jointing
1.2 HV & LV Cable Jointing

Carried Out by Fully Certified Jointers

All jointing is carried out by trained and authorised jointers who work to manufacturer standards and procedures. We follow strict safety controls and provide full testing and documentation upon completion.

Suitable For

  • Utility and power distribution networks
  • Industrial and commercial infrastructure
  • Renewable energy and battery storage
  • Substation upgrades and emergency repairs

Frequently Asked Questions

We joint LV and HV cables including XLPE, PILC, AWA, waveform and multicore. We work with both modern and legacy systems.

Yes. We locate faults, excavate the damaged section and install new joints to safely restore service. We also test the repair and provide full reports.

Yes. Our team installs both indoor and outdoor terminations for transformers, switchgear, panels and pole-mounted equipment.

Yes. We use quality-assured materials and follow strict installation procedures that align with current UK industry standards and best practices.