Electrical Jointing
DT Hughes Group are a SPEN authorised electrical cable jointing contractor certified to 33kV. Full turnkey underground cable solutions across Merseyside.
DT Hughes Group is an electrical cable jointing contractor operating across Liverpool, Merseyside, and the wider North West. Our team holds SPEN authorisations and ENW certifications for underground networks up to and including 33kV, enabling us to deliver full turnkey solutions across LV, HV, and EHV infrastructure.
From planning and design through to jointing, testing, and ongoing maintenance, we manage every stage in-house, giving clients a single point of accountability from start to finish.
LV, HV and EHV Cable Jointing Services
Our electrical jointing capability spans the full voltage range of the . From Low Voltage residential and commercial connections through to High Voltage and Extra High Voltage systems, our teams are trained, certified, and equipped to work safely and precisely at every level.
Our jointing services include:
- LV cable jointing for residential and commercial connections
- HV cable jointing up to and including 33kV
- Underground cable terminations and straight joints
- Resin joints all underground LV / HV / EHV
- Cable testing and commissioning
- Ongoing maintenance of jointed networks
Every job is carried out by qualified jointers working to the standards required by SPEN and ENW, with safety and network performance as the non-negotiables on every site.
SPEN Authorised and ENW Certified to 33kV
Holding both SPEN authorisations and ENW certifications for networks up to and including 33kV places DT Hughes Group in a small category of contractors qualified to carry out this work on the public distribution network. These are not self-declared standards. They are assessed and awarded by the network operators themselves, and they reflect a demonstrated level of technical competence, safety management, and quality of output.
For clients procuring electrical jointing services, these credentials matter because they determine what work a contractor is legally and technically permitted to carry out. A contractor without the relevant authorisations cannot touch certain parts of the network, regardless of their general electrical experience. DT Hughes Group can. First Aid certificate EUSR or CSCS card is mandatory.
Full Turnkey Underground Cable Solutions
Turnkey means something specific to us. It means a client engages DT Hughes Group at the planning stage and we carry accountability for every subsequent stage through to completion and sign-off. There is no handover between civils and jointing teams, no gap in accountability, and no ambiguity about who is responsible when something needs resolving.
In practice that covers: detailed planning and method statements, excavation and cable installation, jointing and termination work, testing and commissioning, reinstatement, and ongoing maintenance where required. One contractor, one point of contact, one version of events.
For utility companies and principal contractors managing complex underground cable programmes, that single point of accountability reduces programme risk and simplifies contract management considerably.
A Team Built on Continuous Development
Our electrical jointing department has grown significantly in recent years, expanding in line with the demands of our SPEN framework work and the broader underground infrastructure programmes we deliver across the North West. That growth has been deliberate, built on investment in qualified people and the training required to keep our authorisations current across every network we operate on.
Our jointing capability is built on six full-time in-house teams, backed by a further seven sub-contractor teams we draw on as project demand requires, giving us both consistency and the flexibility to scale.
Every operative on our jointing team holds the certifications required for the work they carry out. We invest in keeping those certifications current and in developing our team's capability as the networks we work on evolve. For clients, that means a team that is not only qualified today but is built to remain qualified as standards and technologies develop.
Frequently Asked Questions
Electrical cable jointing is the process of connecting two sections of underground cable to form a continuous, insulated, and weatherproof connection. It is required during new cable installations, network upgrades, fault repairs, and whenever existing cables need extending or connecting to new infrastructure. Jointing work on public distribution networks must be carried out by contractors holding the relevant network operator authorisations.
DT Hughes Group holds SPEN authorisations and ENW certifications for underground networks up to and including 33kV. These credentials are awarded by the network operators themselves and permit our teams to carry out jointing work on LV, HV, and EHV systems across their distribution networks. First Aid certificate EUSR or CSCS card is mandatory.
Full turnkey means DT Hughes Group manages every stage of the project from initial planning and design through to jointing, testing, commissioning, and reinstatement. Clients engage a single contractor who holds accountability throughout, removing the complexity and risk of managing multiple subcontractors across different stages of a cable programme.
Our primary operating area covers Liverpool, Merseyside, Wirral, Chester, and North Wales. We work across the SP Energy Networks and Electricity North West distribution areas. Contact us to discuss the specific location and scope of your project and we will confirm coverage and capacity.
Work With an Electrical Jointing Contractor Qualified to Deliver
If you are looking for an electrical cable jointing contractor with the authorisations, technical depth, and turnkey capability to take a project from planning through to completion, DT Hughes Group would welcome the conversation. We hold SPEN authorisations and ENW certifications to 33kV, we have been delivering civil and electrical infrastructure across the North West since 1984, and we take full accountability for every project we take on. Get in touch with our team to discuss your requirements.