Brisbane’s Most Common Electrical Fire Risks, And How to Prevent Them

A clear and practical guide to the most common electrical fire risks in Brisbane homes, and how to prevent them with simple safety checks, upgrades, and professional inspections.
Brisbane homes face unique electrical safety challenges due to our heat, humidity, heavy storm seasons, and the increasing number of appliances in modern households.
Electrical fires often start silently; behind walls, in ceilings, or inside an outdated switchboard. Long before a homeowner notices a problem.
Here are the most common electrical fire risks in Brisbane, and how you can prevent them.
1. Outdated Switchboards & Ceramic Fuses
Many Brisbane homes built before the 2000s still use:
Ceramic fuses
Old breakers
No RCDs (safety switches)
Poor or damaged wiring
These older systems overheat easily and often fail to trip during a fault, a leading cause of electrical fires.
Prevention:
✔ Upgrade to a modern switchboard
✔ Ensure RCDs protect all circuits
✔ Replace ANY ceramic fuses urgently
A modern switchboard is your home’s first line of defense.
2. Overloaded Circuits (Very Common in Brisbane Summers)
Running multiple high-load appliances on the same circuit creates heat buildup and fire risk.
Common overload offenders include:
Air conditioners
Pool pumps
Dryers
Ovens
Gaming setups
Outdoor kitchens
Portable heaters
Warning signs:
✔ Lights dimming
✔ Buzzing outlets
✔ Frequent tripping
✔ Warm switchboard cover
Prevention:
✔ Install dedicated circuits
✔ Spread heavy appliances across circuits
✔ Get a professional load assessment
3. Faulty, Old or Damaged Wiring
Brisbane’s climate accelerates wiring deterioration; especially in older homes with rubber, cloth, or aluminium wiring.
Risks include:
Hot joints
Exposed conductors
Cracked insulation
Loose connections
Rodent damage
Prevention:
✔ Full wiring inspection
✔ Rewire dangerous sections immediately
✔ Avoid DIY wiring
4. Power Points That Are Loose, Cracked or Overheating
A single faulty outlet can ignite a fire.
Warning signs:
✔ Buzzing
✔ Burning smell
✔ Warm or discoloured plates
✔ Sparks when plugging in
Prevention:
✔ Replace faulty outlets
✔ Install weatherproof GPOs outdoors
✔ Never overload double adapters
5. Extension Cords Used as Permanent Power
Very common in Brisbane, and very dangerous.
Long-term use of:
Cheap extension leads
Multi-plugs
Double adapters
Daisy-chained power boards
creates heat and overload, dramatically increasing fire risk.
Prevention:
✔ Install additional outlets
✔ Use outdoor-rated equipment
✔ Avoid “temporary” setups that become permanent
6. Faulty Appliances & Poor-Quality Devices
Cheap chargers, plug-in fans, and unapproved appliances cause a huge number of home electrical fires.
Prevention:
✔ Use only approved & tested devices
✔ Replace frayed or damaged cords
✔ Unplug appliances that overheat
7. Solar System Faults (Panels or Inverter Issues)
Brisbane has one of the highest solar installation rates in Australia — and with that comes risk.
Common fire hazards include:
DC isolator failures
Overheated inverters
Poor installation
Damaged wiring on roofs
Water ingress from storms
Prevention:
✔ Annual solar inspection
✔ Keep isolators covered & protected
✔ Address inverter warning lights immediately
8. DIY Electrical Work
This is illegal, and extremely dangerous.
DIY wiring causes:
Wrong cable sizes
Poor joins
Overheating
Zero circuit protection
Immediate fire risk
Prevention:
✔ Use licensed electricians ONLY
✔ Never attempt wiring, switchboard work, or GPO installation
9. Neglected Smoke Alarms
Even if a fire starts, faulty or non-existent smoke alarms turn a preventable incident into a tragedy.
Prevention:
✔ Install QLD-compliant interconnected smoke alarms
✔ Test monthly
✔ Replace batteries yearly
✔ Replace the entire unit every 10 years
Final Word: Most Electrical Fires Are Preventable in Brisbane
Electrical fires usually start from:
✔ Old switchboards
✔ Faulty wiring
✔ Overloaded circuits
✔ Bad appliances
✔ DIY mistakes
A quick inspection can prevent tens of thousands in fire damage, and protect your family.
👉 Need an electrical safety inspection or switchboard upgrade in Brisbane?
Call Exclusive Electrical & Air for fast, safe, fully licensed service.
Your home’s safety starts today.