Surge Protection

Why You Needs This
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Summer Storm Corridor
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Older switchboards in 2200
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Industrial neighbours
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Brownouts & sags
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Apartment density
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Smart-home growth

What's at Risk
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Televisions & entertainment
Smart TVs, soundbars, gaming consoles
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Kitchen appliances
Fridges, ovens, induction cooktops, microwaves
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Air-conditioning
Split-system PCBs and outdoor inverters
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Computers & networking
Desktops, NBN modems, NAS drives
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Solar inverters
Often 4–5 figures to replace, rarely insured
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EV chargers
Wallbox electronics and onboard car charging modules
First Line of Defence

Comprehensive Coverage
Main Power Protection
Data & Signal Lines
Telecom & Computer Lines
Solar Surge Protection
EV Charger Protection
Specialised Systems
Our Partners



Comprehensive Coverage
Most surge protection installations are completed in a single visit, with minimal disruption to your property.
Free Quote & Site Check
Call or book online. We give you a fixed-price quote — usually within 10 minutes.
Switchboard Assessment
On-site review of your existing board, earthing, RCDs and incoming supply to choose the right SPD class.
Install & Test
We install the SPD, test the system end-to-end and re-energise. Most jobs are done in 2–3 hours.
Compliance & Warranty
You receive your AS/NZS 3000 Certificate of Compliance and workmanship warranty.
Nearby Coverage Area

Why Choose High Demand Electrical
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Licensed Level 1, 2 & 3 ASP
Approved to work on Ausgrid's network — pole, mains, and switchboard.
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Fixed-price quotes
No hourly surprises. You see the cost before we start.
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10-minute callback promise
Quotes returned during business hours, often inside 10 minutes.
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Manufacturer-backed SPDs
We only install reputable brands with up to 25-year warranties.
What Our Happy Clients Say
Testimonials
Frequently Asked Questions
FAQs
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.







