Our Services
Mobile generator servicing, maintenance agreements, modifications and more — across Auckland and the North Island.
Service
Get Serviced
With thousands of diesel generators installed across New Zealand, DGNZ services generators from the top of the North Island all the way to Taupo. We come to you — whether you’re a commercial building, farm, mountain-top RADAR installation, milk and dairy facility, communication repeater site, data centre, medical facility or refrigerated storage operation.
Like all mechanical devices, maintenance is critical for ensuring that a standby generator will start, run and support the electrical load when required.
Our Maintenance Programme Includes:
- General machine inspection combined with installation and environment inspection
- Inspection of controls and associated engine wiring
- Inspection of all rotating engine components — water pumps, idlers, tensioners, fan hubs, harmonic dampers, battery alternators and belts
- Lubrication service including filters and high quality lubricants with sampling and oil analysis
- AC alternator lubrication where applicable
- Cooling system service — radiator inspection, block heaters, hoses, caps and coolant sampling
- Fuel system service — filters, water detection and fuel quality testing
- Air intake system service and filters
- Servicing and testing of starting batteries
- Single service, hour-based recurring services or annual scheduled services
- Electrical load testing (load banking) — prove your installation and burn off oil deposits



SMA
Maintenance Agreements
DGNZ offers a full range of flexible Service & Maintenance Agreements (SMA) for all brands of generator equipment to suit your specific requirements. We specialise in the greater Auckland area but travel as far as Taupo in the south and Kaitaia in the north.
Benefits of an SMA:
- High availability of your critical applications and processes
- 24 x 7 telephone and onsite technical support
- Monthly preventive maintenance visits, inspections, tests and reports
- Fixed annual service and maintenance costs — no costly surprises
- Scheduled and unscheduled repairs and maintenance covered
- Set it and forget it — we keep it running in the background, no mess, no fuss



Modifications
Modifications
From full generator installation to decommissioning and removal, DGNZ handles every aspect of generator add-ons, moves and modifications. We provide a fully compliant, turnkey service from system design through to reinstatement.
- Decommissioning and removal of redundant generators, ventilation, fuel and exhaust systems
- Offset decommissioning costs against residual equipment value (negotiable)
- HSNO safety and compliance
- Old fuel disposal
- Electrical safety and Code of Compliance (COC)
- System design and engineering signoff
- Civil and concrete work
- Cranes, rigging and traffic management
- Ducting, trays and cabling
- Reinstatement works
- Fully compliant occupational and environmental safety processes
- Alternator repairs and rewinds
- Electrical load testing
- Fuel delivery


More
Other Services
We Buy Generators
DGNZ purchase used and scrap generators and act as brokers for customers wishing to sell old generators. Our brokerage extends throughout New Zealand, with international purchasers in the Middle East, India and Pakistan. Contact us for an honest appraisal of your surplus generators and associated equipment.
Emergency & Compliance Work
For customers in a bind, we may be able to assist at short notice to keep your critical infrastructure and generation capability operational.
Engine, Controls & Alternator Diagnostics
- Engine ECM/ECU diagnosis — read and clear fault codes
- Caterpillar “ET”, Cummins “Insite”, Perkins “EST”, Volvo “Vodia”
- Programming of ComAp and Deep Sea controls
- FG Wilson diagnostics
- Stator & Rotor IRT (insulation resistance testing)
- AVR (automatic voltage regulator) adjustment and replacement
- High and low fuel circuit pressure testing
- High and low oil circuit pressure testing
- Fuel storage and delivery system pressure testing

Need a Service, Quote or Emergency Call-Out?
We’re on the road — leave a message and we’ll get back to you fast.
