At Hennessy, we’re always on.
Breakdowns equal production losses, so we’re steadfast in providing a 24/7 urgent response call-out services to our clients to minimise down time.
Getting production back to optimum is our top priority. Our agile team is trained in leading-edge technology and backed by a fleet of fully equipped service vehicles to always offer a complete level of service at a moment’s notice.
Flexible and diverse to react quickly to plant breakdowns, our expert team also offers regular electrical maintenance to provide intuitive problem-solving and solutions to issues before they become a major fault.


From high-stakes greenfield electrical project work to EVC installations, our clients count on us for our technical know-how, project experience, and reliable, expert support to help keep their project running smoothly.

Hennessy offers a comprehensive range of electrical services, from appliance testing and thermal imaging surveys to ongoing maintenance and prompt breakdown support.

With decades of experience in electrical engineering, our expert electricians can assist with a variety of electrical needs, from commercial general lighting right through to switchgear and transformers for heavy industry.

Hennessy offer fully qualified instrument Technicians who carry out Instrumentation Calibration, commissioning, and installation services for clients across the Waikato region.

We offer bespoke design, planning and installation of production factory and warehouse automation systems for supply chain manufacturing, food and beverage production, robotics, retail and agricultural industries.