Safe & Compliant
HV & LV Cabling and Jointing Services
At Northern HV we provide HV and LV cabling and jointing services to support new installations, upgrades and ongoing electrical works. Our experienced engineers deliver safe, reliable connections that meet industry standards and project requirements.
We support clients across renewables, utilities, infrastructure, oil and gas, construction, data centres and private networks, operating across the UK and internationally.
Complete Cable Installation and Jointing Solutions
Our cabling and jointing services cover the full scope of cable installation, termination and jointing works. We work with a wide range of HV and LV cable types and configurations, ensuring all connections are completed accurately and safely.
Typical works include cable pulling, termination, jointing, testing coordination and preparation for commissioning. Our team works closely with installation and commissioning engineers to ensure a smooth transition through to energisation.
Delivered Safely & Within Specification
Safety, Quality and Compliance
All cabling and jointing activities at Northern HV are delivered in line with relevant standards, client specifications and safety rules. Our approach to risk management, quality assurance and safety is governed by our ISO management suite.
We are certified to ISO 9001, ISO 14001, ISO 27001, ISO 45001 and hold NERS accreditation and DNO / IDNO Authorisations for 11/33/66kV. We are also an SSIP Certification Body Member. This ensures all cabling and jointing works are planned, controlled and documented correctly, with full compliance across electrical network operations.
Live & Safety-Critical Environments
Experience Across HV and LV Networks
Northern HV has extensive experience delivering cabling and jointing services on substation projects, transformer builds, switchgear installations and renewable energy schemes. Our engineers are trusted to work in live and safety-critical environments, maintaining high standards throughout every stage of the process.
We support both standalone cabling works and integrated projects as part of a wider electrical delivery scope.
Why Choose Northern HV for Cabling and Jointing
Clients choose Northern HV for our attention to detail, technical competence and disciplined approach to safety. We deliver reliable cabling and jointing solutions that support long term system performance and minimise the risk of faults.
Our ability to integrate cabling and jointing with installation, commissioning and SAP services provides a coordinated and efficient solution for complex electrical projects.