ThunderOhms Consulting

Earthing & Lightning Protection Specialists for South African Businesses

Choose The Path of Least Resistance

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  • 25+ Years Experience
  • SANS & IEC Compliant
  • Nationwide Service
  • Inspections & Certification

About Us

Thunder Ohms Consulting helps businesses protect people, property, and infrastructure through well-planned earthing and lightning protection solutions. We bring hands-on industry experience, careful technical oversight, and a practical approach to every project.

Our Guiding Philosophy

Lightning cannot be prevented, but damage can be minimized through correct earthing and compliant lightning protection systems (LPS).

Mission Statement

To provide professional earthing, lightning protection, and electrical compliance services that protect lives, infrastructure, and investments through proven engineering principles and strict adherence to recognised standards.

Our Commitment

  • Practical solutions tailored to each site
  • Direct technical involvement from start to finish
  • Careful inspection, testing, and documentation
  • Reliable support across South Africa

Services

Our goal is not to promise immunity from lightning, but to significantly reduce risk and protect what matters most. Here are the services we provide in reaching that goal and protecting our clients.

Earthing & Bonding Systems

Comprehensive earthing solutions for structural and personal safety.

  • Earth resistance testing
  • Maintenance testing
  • Installation of earth mats, rods, and grids
  • Cable locating
  • Surge and transient protection integration

Inspections & Compliance

Detailed inspections to ensure full regulatory compliance.

  • Lightning protection compliance inspections
  • Pre-purchased building inspections
  • Insurance inspections
  • Maintenance inspections
  • Detailed reporting and certification
  • Safety and compliance checks

Lightning Protection Systems

Full-cycle LPS services from design to certification.

  • New system design
  • Risk assessments
  • Upgrading existing systems
  • Inspection and testing
  • Compliance certification

Projects

Explore our recent earthing and lightning protection work from the field.

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Installing a 5m × 2m 70mm² bare copper earth mat at a depth of 1.5m as an alternative earth for a solar system.
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LPS installations on a tiled roof.

Compliance & Affiliations

Built around compliance. All inspections, designs, and installations are completed in accordance with relevant South African and international standards.

SANS (South African National Standards)
IEC (International Electrotechnical Commission)

We work closely with the Electrical Contractors Association of South Africa (ECASA) and the Lightning Protection Practitioners South Africa (LPPSA), ensuring our installations and practices remain aligned with the latest industry standards.

Contact Us

Ready to discuss a property, book an inspection, or get a quote? Reach out using the details below.

Name

Johann Dreyer

Phone

082 859 4287

Email

johann@thunderohms.co.za

Service area

Nationwide across South Africa

Registration No

2026/129036/07