Electrical Safety Testing, Maintenance & Repair

Specialists in Aircraft Ground Power Units (GPU), Aviation GSE, Construction Equipment

…And More!

Exclusive New Zealand service agent for Guinault SA Ground Power

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Keeping your tools and equipment safe and compliant!

The best choice for electrical testing, maintenance and repair across New Zealand. Tried & Tested has the experience and equipment to keep you, your employees and your customers safe, as well as to reduce chances of lost productivity by getting you back to work faster.

Specialized in aircraft Ground Power Units (GPUs) for over a decade, across all brands including Guinault, ITW Hobart, TLD, Jetpower, Hitzinger

We’re New Zealand family-owned, friendly and professional.

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What We Do:

Maintenance, Diagnosis & Repair

Keeping your tools and
equipment operational.

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Aviation Ground Service Equipment

GSE technician specialised in
Ground Power Units (GPUs).

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Programmed Testing & Tagging

Electrical asset safety
& compliance.

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Who We’ve Worked With

“… provides an excellent service and always puts customer satisfaction first!”