Generac Guardian Series Standby Generators 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 Guardian generator keeps running
From everyday comfort to life-saving equipment, a Guardian standby generator keeps your home running through any outage — automatically.
Lighting
Keep every room lit and your home safe to move around in during a blackout.
Security & alarms
Cameras, alarms and access systems stay powered so your home stays protected.
Air conditioning & heating
Run ducted or split-system climate control to stay comfortable year-round.
Refrigeration
Protect hundreds of dollars of food and medication in fridges and freezers.
Entertainment & connectivity
Wi-Fi, modems, TVs and devices keep working so you stay connected and productive.
Medical & life-saving equipment
Clean, reliable power for CPAP, oxygen and other essential medical devices.
Everything Your Generac Install Needs, in One Place
From load sizing to compliance documentation — we handle the whole job end-to-end.
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.
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.
Generac Guardian Home Standby Generators
Air-cooled Guardian units are built for Australian homes — automatic, quiet and weatherproof. We match the right capacity to your property during your free on-site assessment.
Essential backup
Keeps power points, the fridge, internet, key lighting and a circuit or two running through an outage.
Most homes
Covers essentials plus split-system air-conditioning and everyday appliances for comfortable backup.
Large homes
Whole-home coverage including ducted air-conditioning and multiple high-draw appliances.
Premium & acreage
Maximum air-cooled output for large homes, pools, sheds and home offices.
Guardian 10, 13 & 20 kVA compared
Three air-cooled models to match your home's size and power needs. The 20 kVA Guardian is the most powerful single-unit option for large homes and light commercial sites.
Natural gas or LPG — your Guardian runs on both
Every Guardian ships ready for either fuel, with tool-free field conversion in seconds. Our Level 2 ASP team configures the right fuel for your property.
Natural gas (NG)
Connects to your mains gas line for effectively unlimited run time — no tank, no refuelling. The most popular choice wherever mains gas is available.
LPG (liquid propane)
Runs from an on-site LPG tank — ideal for properties without mains gas. The same Guardian unit, simply converted on site.
Guardian Series pricing for your home
Guardian pricing depends on the model you choose (10, 13 or 20 kVA), your fuel type, and any switchboard or transfer-switch work. Book a free on-site assessment and we'll give you a fixed-price, fully installed quote — no surprises.
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.
Seamless automatic transfer & switchboard integration
Your Generac is only as good as the way it's wired in. As a Level 2 ASP we integrate the automatic transfer switch and your switchboard so backup power is instant, safe and fully compliant.
Automatic transfer switch (ATS)
Detects outages and cuts over to generator power within seconds, then switches back to mains automatically — with no backfeed to the grid.
Whole-home or essential circuits
We configure the ATS for whole-home coverage or a managed essential-loads panel to suit your generator size and budget.
Switchboard upgrade & compliance
Where your board needs upgrading, RCDs or re-metering to support backup power, our Level 2 team completes it to AS/NZS 3000 in the same project.
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
Book Your Free On-site Generator Assessment
Not sure which Generac suits your home? We visit your property, assess your power needs and switchboard, and give you a fixed-price quote — at no cost and no obligation.
On-site load assessment of the circuits you want to back up
Right-sized Generac Guardian model recommendation
Switchboard, ATS and generator placement check
Fixed-price, fully compliant written quote
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. A whole-house Generac standby generator connects into your switchboard and the electricity network through an automatic transfer switch, so it must be installed by a licensed Level 2 ASP. High Demand Electrical is an accredited Generac dealer and Level 2 ASP, so we handle supply, installation, grid connection and commissioning end to end.
An automatic transfer switch (ATS) detects the outage, safely isolates your home from the grid and starts your Generac within seconds. When mains power returns it switches back and shuts the generator down automatically — no manual switching and no risk of backfeed to the network.
It depends on whether you want to run essential circuits or the whole home, including ducted air-conditioning. We carry out a free on-site load assessment and recommend the right Generac Guardian model — from 10kW up to 26kW air-cooled — so your system is never over- or under-sized.
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.
