30+ Years Combined Expertise in HV/LV Jointing & Power Solutions

Built on experience. Driven by precision. Trusted across the UK

Trusted By

About R&D Jointing

Founded by brothers Ricki and David, R&D 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 Jointing to deliver the high-standard service we are known for – nationwide and beyond.

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

Substation Installation

We build & fit out 11kV substations including SP&L

SAP Services

SAP Services

Authorised up to 33kV, we can provide switching, permits and supervision

Your questions answered

Built on Experience, Answered with Expertise

With over 3 decades of combined experience, R&D Jointing is trusted across Kent and beyond.

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.

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.

We specialise in LV, 11kV and 33kV jointing and substation work. We’re also authorised up to 33kV for SAP services.

PILC, XLPE, Waveform and other common LV/HV cable types. If you’re unsure, just ask – we’ve likely worked with it before.

Absolutely. We take care of everything from civil works and fit-outs to testing, commissioning and DNO audit prep.

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.

We can do both. We’re happy to supply complete kits or work with your materials – whatever suits the job and your budget.

With 30+ years of combined experience, a trusted network and a commitment to quality, we deliver reliable solutions with a personal approach.

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

“A testimonial from a client who benefited from your product or service. Testimonials can be a highly effective way of establishing credibility and increasing your company's reputation.”
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“A testimonial from a client who benefited from your product or service. Testimonials can be a highly effective way of establishing credibility and increasing your company's reputation.”
Client Name
“A testimonial from a client who benefited from your product or service. Testimonials can be a highly effective way of establishing credibility and increasing your company's reputation.”
Client Name