Powering Reliable Grids
Josta Cables supplies, installs and commissions high-voltage systems for utilities, industry and renewable projects.
Request a site visitAbout Josta Cables
Specialists in high-voltage cable technology, turnkey installations and grid-modernisation support.
Effective delivery for mission-critical power
From cable supply to commissioning, we combine certified engineers, safety-first processes and OEM partnerships to keep power flowing.
- Certified jointers and protection engineers for all kv networks.
- Factory-backed cable supply with tested accessories and quality assurance.
- On-site testing, thermography and commissioning aligned to IEC and local utility standards.
High-voltage cable experts
End-to-end cable selection, terminations and joints for substations and feeders.
Effective delivery
Single partner for design, procurement, installation, testing and handover.
Grid-safe commissioning
Protection setting reviews, cable proving and energized start-up with safety audits.
Renewable-ready
Grid interconnection for solar, wind and storage with proven trenching and routing.
Rapid response
Emergency fault location and repairs to minimise downtime and penalties.
Compliance assured
Documentation, permits and testing protocols aligned to utility and IEC requirements.
High-Voltage Solutions
Specialised teams delivering safe, reliable power infrastructure from cable yards to energized grids.
HV Cable Supply
OEM-grade medium and high-voltage cables, terminations and joints with full quality documentation.
Substation EPC
Design, installation and upgrade of HV substations including control, protection and SCADA integration.
Testing & Commissioning
Primary injection, VLF, insulation resistance, sheath testing and thermal imaging before energization.
Protection & Safety
Protection grading studies, relay configuration and safety management to keep crews and assets secure.
Industrial Power
Dedicated feeders, plant expansions and cable routing for refineries, factories and data centres.
Consultancy
Grid studies, route surveys, as-built documentation and lifecycle advisory for dependable uptime.
Need a partner for your next grid upgrade?
We mobilise certified crews, calibrated tools and vetted materials to keep your energisation date on track.
Book a site surveyProjects
Commissioned builds for utilities, industrial campuses and renewable plants.
- All
- Utility
- Industrial
- Renewables
Engagement Models
Choose the level of partnership you need—from fast supply to full lifecycle support.
Supply Only
On request
- OEM-certified HV/MV cables & accessories
- Batch test reports & certificates
- Logistics to site and laydown support
- Installation & testing
- 24/7 maintenance cover
Supply + Install
Custom
- Design review, route survey and permits
- Installation, terminations and jointing
- Testing, commissioning and as-built packs
- Warranty-backed workmanship
- Site safety management
O&M Partnership
Retainer
- Preventive maintenance and thermography
- 24/7 fault response SLA
- Relay settings, backups and firmware upkeep
- Spare kits and critical inventory planning
- Monthly performance reporting
High-voltage leadership
Engineers and project managers who have delivered energized assets across the region.
Joel Nyasha Gomba
Director15+ years leading HV cable supply chains and utility approvals, ensuring every project meets spec.
Elisha Chigada
Projects DirectorCoordinates EPC delivery, safety plans and commissioning milestones to keep energisation on schedule.
Paul Murwira
Lead Protection EngineerDesigns protection schemes, relay settings and field tests for reliable, safe grid connections.
Let's power your project
Share your timelines and network requirements—we’ll respond with a tailored plan.
Address
93 Kaguvi St Harare
Call Us
+263 782 345 804 , +263 784 784 528
Email Us
jostacables65@gmail.com