11kV Cable Jointing
11kV cable jointing and HV terminations across the UK
R&D Cable Jointing provides 11kV cable jointing for utility and private networks, supporting planned installation programmes, diversions and repair works. We work to manufacturer procedures and align with your permits, outages and programme requirements.
Based in Kent and working nationwide, we regularly support projects across Essex, London, Hertfordshire, Surrey, Suffolk, Cambridgeshire and Bedfordshire.
- 11kV straight joints and transitional joints
- 11kV fault location and repairs
- Indoor and outdoor 11kV terminations
- Support for testing and energisation
- Fault response support by agreement
11kV jointing for utility and private networks
We support 11kV circuits on distribution networks, renewable connections, commercial and industrial sites, and infrastructure programmes. Our focus is simple: prepared teams, consistent workmanship, and clear communication on site.
- Planned jointing on new installs and diversions
- Coordination with civils, project management and commissioning teams
- Handover support where required
What you can expect on site
- Scope confirmation on cable type, joint type, route, access and outage windows.
- RAMS and controls aligned to your rules, permits and working arrangements.
- Quality-first jointing to manufacturer procedures with clean handling and controlled build-up.
- Checks and readiness for testing and energisation support if required.
- Clear handover with sign-off support and close-out of snags.
Related HV services
Talk to an 11kV cable jointing contractor
Send over the scope, location and programme dates and we will come back with availability and a straightforward plan.
- Areas: Essex, London, Kent, Hertfordshire, Surrey, Suffolk, Cambridgeshire, Bedfordshire
11kV cable jointing FAQs
What areas do you cover?
We’re based in the South East but provide services across the UK and are happy to travel further for larger projects. Just get in touch to discuss your location.
What voltages can you work with?
LV, 11kV & 33kV
What types of cable do you joint and install?
PILC, XLPE, Waveform and other common LV/HV cable types. If you’re unsure, just ask – we’ve likely worked with it before.
Can you handle full substation installations?
Absolutely. We take care of everything from landing, earthing & fit-out to testing, commissioning, DNO audit attendance & taking control of the LV network on behalf of the iDNO on connection day.
What’s the difference between a jointer and an SAP?
A jointer physically installs and connects cables, while an SAP (Senior Authorised Person) is responsible for issuing permits and ensuring the system is safe to work on. We provide both services in-house.
Can you supply materials or do you work labour-only?
We can do both. We’re happy to supply or work with your materials – whatever suits the job and your budget.
What makes R&D Jointing different?
With 30+ years of combined experience, a trusted network and a commitment to quality, we deliver reliable solutions with a personal approach.
How do I get a quote or book a job?
Simply email us at info@rdjointing.co.uk – We’ll get back to you and arrange a site visit or discuss your requirements.