Need support with motors, generators, transformers or electrical infrastructure? That's what we do.
ESL provides specialist repair, refurbishment, rewind, testing and maintenance services for rotating plant and electrical infrastructure across New Zealand. With workshops in Hamilton and Christchurch and experienced field service teams operating nationwide, we help customers maximise asset reliability and extend equipment life.
Many customers will know us from our history as ABB Motors and Generators Service. While the name has changed, the workshops, people and technical expertise remain focused on delivering the same high-quality service and technical support the industry has relied on for decades.
Today, as part of the Unison Group, ESL supports customers across the power, utilities, water, industrial, marine, mining, timber and food processing sectors.
Whether you're planning maintenance, facing an unexpected failure, or looking to extend the life of critical assets, talk to our team about how ESL can help.
ESL is certified to inspect, modify, overhaul and repair hazardous area (Ex) electric motors and associated equipment in accordance with AS/NZS 3800.
Our certification covers:
Inspection and modification of new Ex-rated motors
Overhaul and repair of hazardous area motors and enclosures
Installation and inspection of cables and flying leads
Ex
ESL is certified to inspect, modify, overhaul and repair hazardous area (Ex) electric motors and associated equipment in accordance with AS/NZS 3800.
Our certification covers:
Inspection and modification of new Ex-rated motors
Overhaul and repair of hazardous area motors and enclosures
Installation and inspection of cables and flying leads
Ex 'd' (Flameproof)
Ex 'e' (Increased Safety)
Ex 'n' (Non-Sparking)
Ex 't' (Dust Protection)
With specialist workshop facilities and experienced technicians, ESL supports customers operating in hazardous area environments across New Zealand.
Contact our team to discuss hazardous area motor repairs, overhauls, inspections and certification requirements.

ESL is ISO 9001:2015 certified for rotating plant maintenance, generator servicing, transformer repair, industrial maintenance and electro-mechanical workshop services.
When you work with ESL, you're partnering with a team committed to quality, reliability and continuous improvement.
Talk to us about your next maintenance, repair or refurbi
ESL is ISO 9001:2015 certified for rotating plant maintenance, generator servicing, transformer repair, industrial maintenance and electro-mechanical workshop services.
When you work with ESL, you're partnering with a team committed to quality, reliability and continuous improvement.
Talk to us about your next maintenance, repair or refurbishment project.maintenance services, transformer repair, installation, commissioning, and workshop service and repair of electro-mechanical equipment.

ESL is ISO 14001:2015 certified, reflecting our commitment to managing environmental impacts responsibly across our workshop and field services.
From motor and generator repairs through to transformer refurbishment and onsite maintenance, we strive to deliver practical solutions with environmental responsibility in mind.
Talk to our team ab
ESL is ISO 14001:2015 certified, reflecting our commitment to managing environmental impacts responsibly across our workshop and field services.
From motor and generator repairs through to transformer refurbishment and onsite maintenance, we strive to deliver practical solutions with environmental responsibility in mind.
Talk to our team about extending asset life through repair and refurbishment rather than replacement.
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