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We are an Australian company specialising in designing, manufacturing and distributing quality lightning protection systems (LPS) throughout Australia, New Zealand, South Pacific Islands and South East Asia.

About LDU Group

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Consulting & Design

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System Maintenance

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Lightning Protection & Surge Protection Specialists - Lightning Down Under (LDU).



LDU has successfully obtained a license to use the Australian Made Logo on all of our products made in Australia.




LDU are proud to announce the release of our new Single Phase Gatekeeper Surge Diverters. The current range now includes single and 3 phase units with 50, 100 & 150KA surge ratings. The extended range adds to this stable of high quality surge diverters, a three phase 200KA and 300KA units. Go to the News & Reviews Tab or the Power Protection Tab for further information...




Positions Vacant:

Looking for a new challenge in life. Why not visit our Positions Vacant page in the "About us" tab.. 



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Lightning protection and surge protection is based purely on solid, well-grounded science. We believe the industry is maturing, developing the requirement for good quality reliable lightning and surge protection combined with excellent customer service.


At LDU, we endeavor to supply turnkey solutions, which are both technically and economically effective. We are always looking at ways to improve both our product and service. By accomplishing this, we can keep our cost low and therefore our price to our customers low while keeping our high standard of customer service.


We are proud to be 100% Australian owned and operated, and it is this pride that will ensure that we remain Australian supplying high quality, reliable economical Australian lightning, surge & earthing solutions to our customer’s problems. Combining our 20 years experience in providing solutions for lightning and over-voltage issues with our firm commitment to honesty, integrity, loyalty and total customer service, LDU is well placed to address any problems, which may arise and to service markets located throughout Australia and South East Asia.


Our quality systems consist of:

  • Lightning Protection Systems

  • Surge Protection Systems

  • Lightning Rods & Lightning Conductors

  • Earthing Systems and Grounding Products

  • Surge Protector and Surge Arrestor Protection Devices
  • TVSS and Data Protection
  • Power Conditioners, and
  • Uninterrupted Power Supply Equipment


We have an expert team of installers who have a combined experience of over 30 years in the installation of leading technology. We will ensure our installation is done with minimal disruption to your service. All surge protection and lightning protection products comply with appropriate Australian standards and international standards. We also offer annual maintenance service for keeping your system in optimum working order and a generous warranty for your LDU products.


Contact LDU for the highest quality installation of lightning protectors, lightning rods, surge protectors, surge arrestors, earthing systems and uninterrupted power supplies (UPS systems). Call the LDU team on 1800 458 775 for the most competitive prices in Australia.


Are you looking to expand your operation?

LDU is looking to appoint resellers and distributors responsible for specific areas to our national network. If you are interested please go our contact page and send us an email and we will contact you within the hour of receiving the email or the next working day.






Representing in Australia and the South Pacific the following high quality brands.


Indelec - Smart Lightning Solutions




LEPS - High Quality Surge Protection




And of course our own brand of surge protection - GATEKEEPER.