When something electrical stops working, you need it fixed safely and quickly. FMZ Electrical provides fast electrical repairs, fault finding and maintenance for homes, acreages and businesses across Sydney and the Hills District. We find the real cause, fix it properly and test everything before we leave.
Electrical Repairs Sydney & Hills District
Residential, Commercial & Industrial Electrical Repairs
Fast, Reliable Electrical Repairs & Fault Finding
Comprehensive Electrical Repair Services
Our Sydney team is equipped to handle a wide range of electrical issues in residential, commercial, and industrial settings. We prioritise long-term reliability, ensuring every repair meets strict Australian safety standards.
Common Electrical Repairs We Handle
Fault Finding & Diagnostics: Identifying the root cause of circuit failures.
Switchboard Upgrades: Replacing outdated fuse boxes with modern breakers.
Power Point Repairs: Fixing or installing additional GPOs and USB outlets.
Lighting Solutions: Repairing internal/external lights and LED upgrades.
Ceiling & Exhaust Fans: Professional repair and installation services.
Appliance Wiring: Dedicated circuits for ovens, cooktops, and AC units.
Data & Communication: Repairing phone lines and internet cabling.

Why Choose FMZ Electrical for Your Sydney Repairs
Quality Workmanship
We don’t believe in quick fixes that fail. Our Sydney electricians use premium materials and proven techniques to ensure your electrical repairs stand the test of time.
Fully Licensed & Insured
Peace of mind is standard with FMZ Electrical. We are fully licensed Sydney contractors, meaning all repair work is compliant with AS/NZS 3000 standards.
Safety-First Approach
Safety is our core priority. Every repair includes a thorough check of the circuit to identify potential hazards before they become dangerous problems for your Sydney property.
Transparent Upfront Quotes
No guesswork or hidden surprises. We provide clear, honest quotes for all electrical repairs across Sydney, so you know exactly what to expect before we start.
Punctual & Professional Service
We value your time. Our Sydney team arrives on schedule, works efficiently, and ensures your home or workplace is left clean and tidy after every repair.
Residential & Commercial Electrical Repairs
Tailored Solutions for Every Sydney Property
For Homeowners
General electrical maintenance and repairs.
Safety switch (RCD) testing and replacement.
Kitchen and bathroom electrical renovations.
Smoke alarm compliance and repair.
Faulty wiring and circuit replacements.
For Businesses
Scheduled electrical maintenance programs.
Commercial lighting and signage repairs.
Testing and tagging for workplace safety.
Three-phase power repairs and installations.
Emergency exit light testing and repair.
Whether it’s a small home fault or a major outage, we’ll restore power safely and efficiently.
How Our Repair Process Works
Safety Tips for Electrical Faults
Don’t DIY: Electrical work in Sydney must be performed by a licensed professional to ensure insurance and safety compliance.
Check Your Switchboard: If a circuit trips, check for overloaded power boards before calling for a repair.
Identify Warning Signs: Flickering lights, buzzing sounds, or warm outlets are signs that you need a professional electrical repair immediately.
Trust the Experts: FMZ Electrical has the tools and training to safely diagnose complex electrical faults.


Why Locals Trust FMZ Electrical
Sydney Owned & Operated: Supporting the local community with expert service.
Comprehensive Expertise: From heritage homes to modern commercial fit-outs.
Guaranteed Results: We stand behind the quality of every electrical repair.
Up-to-Date Knowledge: Experts in the latest Australian electrical regulations.
Customer-Centric Focus: Friendly service designed around your specific needs.
Areas We Service
Our Sydney electrical repair team covers the entire metropolitan area including:
- Dural
- Glenhaven
- Cherrybrook
- Castle Hill
- Galston
- Kenthurst
- Middle Dural
- Arcadia
- West Pennant Hills
- Baulkham Hills
- Round Corner
- Glenorie
- Hornsby
- and surrounding suburbs.
No matter where you are — North Shore to the Hills, Parramatta to Penrith — FMZ Electrical has you covered.
Electrical Repairs & Maintenance Across Sydney and the Hills District

From a dead power point to a whole-house blackout, FMZ Electrical handles every kind of electrical repair for homes, rural properties and businesses. We’re based in the Hills District, which means fast response times in Dural, Castle Hill, Glenorie, Kellyville and Baulkham Hills, and we service greater Sydney too.
Fault Finding
Intermittent faults, flickering lights, buzzing switches and tripping safety switches all need systematic testing. We use insulation resistance and loop impedance testers to find faults in wiring, appliances and outdoor circuits, including long underground runs to sheds, pumps and gates on acreage properties.
Circuit Breaker Replacement & Repair
A faulty circuit breaker can fail to trip when it should, or trip when it shouldn’t. Both are safety risks. We replace breakers and RCDs with quality, correctly rated components. Learn more in our guide to circuit breaker replacement in Sydney.
Commercial & Industrial Electrical Maintenance
Our team also looks after commercial and industrial clients across the Hills District, with planned maintenance, three-phase repairs, machinery connections, emergency and exit lighting, and commercial fit-outs.
Rewiring & Safety Inspections
Old cloth or rubber-insulated wiring, DIY work and storm damage can all make a property unsafe. We carry out electrical safety inspections and partial or full rewires, and we provide a clear report with every inspection. If anything is urgent, our 24/7 emergency electricians can attend straight away.
Useful resource: NSW Government electrical safety guide.
Frequently Asked Questions
Why does my circuit breaker or safety switch keep tripping?
Repeated tripping usually comes from an overloaded circuit, a faulty appliance, moisture getting into outdoor power points or lights, or damaged wiring. Safety switches (RCDs) trip when they detect current leaking to earth, which is a sign of a real fault. Our electricians test each circuit to find the cause instead of just resetting the switch.
Can you replace a faulty circuit breaker?
Yes. We replace faulty, worn or incorrectly rated circuit breakers and safety switches, and upgrade old ceramic fuses to modern breakers. If the board is too old or full for new parts, we’ll explain your options, including a switchboard upgrade.
Do you do commercial electrical maintenance?
Yes. We provide scheduled electrical maintenance, test and tag, emergency lighting checks and repairs for shops, offices, warehouses and industrial sites across the Hills District and Western Sydney.
Do you charge a call-out fee for electrical repairs?
A standard call-out fee applies and covers travel and the first part of the diagnosis. We explain the fee upfront and give you the repair price before starting any work.
Get Your Repairs Sorted Today
Don’t let a minor electrical fault turn into a major problem. Contact FMZ Electrical for the most reliable electrical repairs Sydney has to offer.

West & North Sydney’s Trusted Emergency Electricians & Switchboard Upgrade Specialists