Complete Lightning Protection Systems, built to last.

From soil resistivity surveys and engineered system design to installation, testing, and SANS-certified Certificates of Compliance — HHK delivers full protection under one roof. No guesswork. No gaps.

Get a Risk Assessment How It Works

A Lightning Protection System Has Two Halves

A compliant, effective installation must address both the external threat from a direct strike and the internal surge energy that travels through your building's systems. HHK designs and installs both.

External LPS

Intercepts the lightning strike before it reaches the structure and safely routes the current to earth — protecting the building fabric and anyone inside.

Air Termination System (ATS)
Down Conductor System (DCS)
Earth Termination System (ETS)

Internal LPS

Controls dangerous surge energy and voltage differences inside the structure — protecting sensitive equipment, data systems, and occupants from indirect effects.

Surge Protection Devices (SPDs)
Equipotential Bonding
Separation Distance Management

Three Systems. One Unified Defence.

The external lightning protection system works as a connected chain — each component plays a critical role. A failure at any point compromises the entire system.

Air Termination System

Intercepts the lightning strike before it reaches the structure — the first line of defence.

Rods and finials positioned at high-risk points on roofs and structures
Mesh conductors providing uniform coverage across flat roof areas
Catenary wires spanning between points for elevated or irregular structures
Natural ATS elements (steel frames, gutters) incorporated where applicable per SANS standards

Down Conductor System

Carries the massive lightning current from the ATS safely down to earth — without damaging the building.

Multiple parallel paths reduce current in each conductor and limit electromagnetic field effects
Correct spacing from walls and structural elements to prevent side flashing
Bonding connections at required intervals to equalise potential throughout the structure
Corrosion-resistant materials rated for the site’s environmental exposure

Earth Termination System

Dissipates lightning’s immense, unpredictable energy safely into the earth — engineered for your specific soil conditions.

Soil resistivity surveys conducted on-site to determine the correct earthing strategy
Earthing electrodes, rings, and grids engineered using advanced materials for optimal conductivity
Resistance testing performed during installation and before certification
Designed to achieve and maintain the resistance values required by SANS 62305

Protecting What's Inside

A direct strike handled by the external LPS still creates dangerous surge energy and voltage differences that travel through cables, pipework, and structural elements. The internal LPS controls these invisible threats.

Surge Protection Devices (SPDs)

Installed at the main distribution board, sub-boards, and at the point of use to clamp transient over-voltages before they reach sensitive equipment.

Equipotential Bonding

All metallic services — structural steelwork, pipework, cable trays, data conduit — are bonded together to eliminate dangerous voltage differences that cause side flash or equipment damage.

Separation Distance Management

Calculated minimum distances between lightning protection conductors and internal systems prevent unintended arcing — a critical design step often missed by inexperienced contractors.

Internal LPS Checklist

Every HHK installation includes a full test report and a legally recognised Certificate of Compliance — essential for insurance purposes and regulatory audits.

Ready to Protect Your Infrastructure?

Our specialists will assess your site, identify your risk exposure, and design a system that meets SANS standards and stands up to Southern Africa's lightning season.