Complete Power Solutions.
LV - 33kV Jointing / 11kV Substation Fit-outs / Commissioning / Private Network SAP Services
Trusted By
About Us
Founded by brothers Ricki and David, R&D Cable Jointing brings over 30 years of combined experience in LV/HV jointing and power infrastructure.
Trusted by professionals across the UK and Europe, we’ve built a reputation for quality, reliability, and strong industry connections. In 2025, we launched R&D Cable Jointing to deliver the high-standard service we are known for – nationwide and beyond.
- Over 30 years of combined industry experience
- Trusted by professionals across the UK
- Built on strong networks, expertise and a commitment to quality
Our Services
Complete Electrical Service
Cable Jointing
Specialists in LV-33kV cable jointing & terminations
Cable Installation
From trench to termination, we handle full cable installs
Substation Installation
We build & fit out 11kV substations including SP&L
SAP Services
Authorised up to 33kV, we can provide switching, permits and supervision
FAQs
Your questions answered
With over 3 decades of combined experience, R&D Cable Jointing is trusted across the UK.
Whether it’s a local project or a large-scale network, we bring the same level of precision and reliability. Got a question? Get in touch – we’re happy to help.
What areas do you cover?
We’re based in Kent 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?
We specialise in LV, 11kV and 33kV jointing and substation work. We’re also authorised up to 33kV for SAP services.
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 civil works and fit-outs to testing, commissioning and DNO audit prep.
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 complete kits 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.
Why Work With Us
Proven Expertise
With over 3 decades of combined experience in LV/HV jointing and substation work, we know how to deliver quality - safely and efficiently.
End-to-End Service
From cable installation & jointing to testing & commissioning, we can handle every stage with precision and care - no hassle.
Fully Insured
We’re fully insured with public & employers’ liability cover. Protection from start to finish with safe, compliant work.
A Personal Approach
As a family-run business, we take pride in our reputation. You’ll deal directly with the people doing the work - honest, responsive & reliable.
Client Testimonials
