HV & LV Cable Installation
Expert Cable Installation Services for High & Low Voltage Networks
We provide professional high voltage and low voltage cable installation across the UK for utility, industrial and commercial clients. Our experienced teams deliver reliable and compliant cable routes from initial planning through to final testing.
High Voltage Cable Installation
Our engineers handle the complete installation of HV cables, supporting 11kV, 33kV, 66kV and above. We work on private networks, substations and grid connections, managing every stage of the process with precision.
Our HV cable services include:
- Cable pulling and laying
- Jointing and terminations
- Cable trenching and ducting
- Thermal backfilling and protection
- Testing and commissioning
We use the correct methods and materials for each site, ensuring thermal performance, mechanical protection and long-term reliability.
Low Voltage Cable Installation
We install all types of low voltage cabling for industrial systems, commercial buildings and public infrastructure. Whether for new builds, upgrades or fault repairs, our team ensures each LV system meets current UK wiring regulations.
LV cable installation covers:
- Power distribution cabling
- Control and auxiliary circuits
- Armoured and multi-core cable installation
- Routing through trays, trunking and ducts
- Safe terminations and labelling
Our work supports safe, organised and compliant LV distribution across a wide range of environments.
Complete Project Support
We provide a full-service approach, from cable route surveys and design to installation, jointing and testing. All works are carried out by qualified operatives under strict health and safety procedures.
We support:
- Private networks and IDNOs
- Commercial and industrial sites
- Substation connections
- Renewables and battery storage
- Utilities and infrastructure providers
Frequently Asked Questions
What is the difference between HV and LV cables?
High voltage cables are used for electrical transmission at voltages above 1kV, while low voltage cables operate below 1kV. HV cables require specialised installation and insulation to handle greater electrical stress.
Do you carry out jointing and terminations?
Yes. We provide certified jointing and terminating for both HV and LV cables using approved materials and techniques. This includes heat shrink and cold shrink systems.
Can you install cables in public highways?
Yes. We are experienced in carrying out works under local authority permits, including road crossings, footpaths and verge installations. We manage reinstatement and NRSWA compliance.
Do you provide cable testing after installation?
All installed cables are fully tested before energisation. This includes insulation resistance, continuity, sheath integrity and pressure testing for HV systems.