Generac Generator Servicing & Maintenance Sydney
Call 0402 559 777 for a Generac quote
Sydney's Accredited Generac Dealer & Level 2 ASP Installer
As a Generac-accredited dealer and a fully licensed Level 2 ASP, High Demand Electrical takes your backup power from sizing and supply through to grid-compliant installation and commissioning. One accountable team for homes, businesses, medical practices, server rooms and essential-service sites across Sydney.
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What a Generac service includes
Every scheduled service follows Generac's maintenance schedule, using genuine parts and a full functional test — so your generator starts and carries load when you need it.
Oil, filters & spark plugs
Engine oil plus oil, air and fuel filter changes, and spark plug inspection and replacement as required.
Battery & charging system
Battery load test, terminal clean and charger check — the number-one cause of generators failing to start.
Coolant, hoses & belts
Coolant level and condition, hoses and belts inspected on liquid-cooled commercial units.
ATS & changeover test
Automatic transfer switch and changeover tested for safe, fast cutover and return to mains.
Run & load test
Generator started and run under load to verify output, voltage and stable operation.
Mobile Link & service report
Controller and Mobile Link checked, fault codes cleared, and a full service report provided.
Everything Your Generac Install Needs, in One Place
From load sizing to compliance documentation — we handle the whole job end-to-end.
Service plans that keep you covered
Choose a plan that matches how critical your backup power is. We schedule and remind you, so a service is never missed.
Essential
One scheduled service each year — ideal for home standby Guardian units. Keeps your warranty valid and your generator outage-ready.
Priority Plus
Two services a year plus priority callout — recommended for medical, hospitality and high-use sites.
Commercial
Tailored schedules, load-bank testing and reporting for strata, industrial and three-phase commercial systems.
Air-cooled, Liquid-cooled or Portable — We Do It All
Whether you need a compact air-cooled home standby unit with automatic cutover, a liquid-cooled three-phase system for a commercial site, or a portable generator connected via a manual changeover, our Level 2 ASP team will specify and install the right Generac correctly the first time.
Home Standby
Whole-home air-cooled backup that starts automatically within seconds of an outage.
View home standby installation →Commercial & Three-Phase
Liquid-cooled standby power for offices, retail, medical and essential services.
Portable + Changeover
Portable units safely connected via a manual changeover for flexible backup.
Automatic Transfer Switch
Seamless cutover so power restores without you lifting a finger.
Servicing & Maintenance
Scheduled servicing and load testing that keeps your Generac outage-ready.
Sizing & Load Assessment
On-site load calculation to specify exactly the right Generac model.
Not sure which Generac suits your property?
Book a free on-site load assessment and we'll recommend the right model and configuration — no over- or under-sizing. Pairs with switchboard upgrades where needed.
Our Energy Providers
Authorised by Sydney's major networks
Why your Generac install needs a Level 2 ASP
A standby generator connects to your switchboard and the electricity network — work only an Accredited Service Provider can legally and safely carry out. As a Level 2 ASP and accredited Generac dealer, we cover every step.
Authorised grid connection
Only a Level 2 ASP can legally disconnect, reconnect and recommission your mains supply to integrate a standby generator.
Compliant changeover & ATS
We install changeover switches and ATS to AS/NZS 3000 so your generator can never backfeed the grid — protecting your home and network crews.
Switchboard & metering ready
If your switchboard needs upgrading or re-metering to support backup power, our Level 2 team handles it in the same visit.
Accredited dealer & installer
We supply, commission and back the warranty on your Generac — one accountable team from sizing to handover.
Protect your Generac warranty
Generac's 5-year limited warranty relies on regular servicing by an authorised dealer. As an accredited Generac dealer, our servicing keeps your warranty intact.
Genuine Generac parts
We service with genuine Generac filters, plugs and components — never aftermarket substitutes that can void cover.
Accredited dealer technicians
Work carried out by trained, accredited technicians to Generac's published maintenance schedule.
Logbook stamped & recorded
Every service is documented and recorded, giving you the paper trail warranty claims require.
Keeps your 5-year warranty valid
Stay compliant with Generac's service requirements so your limited warranty remains in force.
Top-Tier Level 2 Services
Ready to experience the High Demand Electrical difference? For top-tier Level 2 electrical services that combine quality with fairness in pricing, contact our friendly team today. No job is too big or small for us!
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Power That’s Ready Before the Lights Flicker
A correctly sized and commissioned Generac keeps your property running through any outage — automatically.
Backup Power for Every Kind of Sydney Property
From Assessment to Handover in Four Steps
Load assessment
Supply & quote
Grid-compliant install
Commission & handover
Blackout-Proof YourHome or Business.
Get Your Generac Generators Installation Quote Today
High Demand Electrical - Generac Generators Installation
FAQs
By ensuring your property is inspected by High Demand Electrical, you are taking a significant step towards securing its safety and enhancing its efficiency. Reach out today to learn more about how we can assist you in maintaining a safe and compliant electrical environment.
Yes. We're an accredited Generac dealer and a licensed Level 2 ASP, so we supply, install, commission and support the warranty on your Generac system. You deal with one accountable team from sizing and quote through to grid connection and handover.
A standby generator connects into your switchboard and, via a changeover or ATS, interfaces with the electricity network. Only a Level 2 Accredited Service Provider is authorised to disconnect, reconnect and recommission your mains and to install compliant changeover equipment that prevents dangerous backfeed to the grid.
It depends on the circuits you want to keep running during an outage. We carry out an on-site load assessment and recommend the right Generac model — from an air-cooled home standby unit to a liquid-cooled three-phase system — so you're never over- or under-sized. Every install is completed to AS/NZS 3000 and network rules.
Testimonials
"Chris was the professional, punctual and his services are exceptional. Chris re-wired the entire property, chased the electrical work in the bathroom and kitchen areas, left a clean and tidy environment and his open communication and dialogue was a welcomed experience.
When he quoted an arrival time, he was there. He talked me through what he was doing, and provided feedback/suggestions on how to tackle any issues. I felt part of the process, as opposed to being another Customer.
A pleasure to deal with, and I recommend his services. I'll be definitely calling him again with any electrical work I need done."
"Chris and his team are a professional outfit who were friendly and very helpful with any questions I had about the work they were doing. They completed their work promptly and to a high standard of quality. Would definitely use them again for any future electrical works!"
"HDE did a great job at our place, Chris was highly responsive, professional and a master of his craft; there was no challenge too great. I would highly recommend High Demand Electrical."
"Chris and his team did a great job. Excellent customer service all round. Great communication, very thorough and professional. Took the time to get the job done right and cleaned up afterwards Would hire again and definitely recommend. A+ job."
"Great electricians- very professional and efficient with doing the electricals for our kitchen renovations & new lighting in our apartment. Gave good suggestions as well for kitchen cupboard lighting. Highly recommend them."
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Powering Your Needs with Expertise
If you’re looking for a reliable, experienced, and prompt electrician, look no further than High Demand Electrical. We cater to all your electrical needs, from routine maintenance to emergency repairs and complete system installations. Our skilled team is committed to providing professional service that ensures your electrical systems run smoothly. Whether it's a small task or a large project, give us a call today. Let us meet all your electrical demands with the quality and reliability you deserve.
