R&D Cable Jointing Ltd is a UK-based electrical contractor specialising in LV, 11kV and 33kV power infrastructure, supporting utilities, ICPs, IDNOs, and civil contractors across the country.

We deliver end-to-end HV and LV services, from cable installation and jointing through to substation fit-outs, testing, commissioning, and energisation. Whether it’s a planned project, network upgrade, or reactive fault, we provide a reliable, compliant service that meets DNO standards.  ￼

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What we do
	• LV-33kV Cable Jointing & Terminations
All joints across all common cable types
	• Cable Installation (Trench to Termination)
Full installation packages
	• Substation Installation & Fit-Outs
Complete builds including earthing, small power & lighting, and audit attendance
	• Testing & Commissioning
Ensuring systems are safe, compliant, and ready for energisation
	• HV Faults & Repairs
Fast, practical support when a cable fails
	• SAP Services (Up to 33kV)
Switching, isolations, permits, and operational control

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Who we work with
	• DNOs & IDNOs
	• Independent Connection Providers (ICPs)
	• Civil & infrastructure contractors
	• Renewable energy (solar, BESS, EV)
	• Commercial & industrial clients  ￼

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How we work

Every job is delivered with the same approach:
	• Clear scope and planning
	• Strict adherence to RAMS and site rules
	• Clean, controlled installation
	• Proper testing and handover

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What sets us apart
	• Specialist focus on HV networks
	• End-to-end delivery
	• Strong understanding of DNO/iDNO standards and compliance
	• Straightforward, reliable service with a hands-on approach

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Quietly. Professionally. Reliably.

📧 info@rdjointing.co.uk

R&D CABLE JOINTING

David M.

This department is responsible for the installation and maintenance of low voltage and 33kV cable joint systems.

R&D CABLE JOINTING

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Teams

Cable Jointing

Offices

R&D CABLE JOINTING

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Teams

Cable Jointing

Offices

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