Pre-purchase electrical inspection in QLD: should you get one, and what it should include

A building and pest inspection is standard practice for any QLD property purchase. The electrical inspection is not, and that gap has cost more than a few Camp Hill and Carindale buyers a nasty surprise after settlement. Building inspectors look at structural, termite, and moisture issues. Most of them are not licensed electricians and their reports specifically disclaim electrical systems. You can buy a house with a ceramic fuse box, zero safety switches, and aluminium wiring running through insulation, and the building inspection report won't say anything alarming.

Here's what a proper pre-purchase electrical inspection includes, what it costs, and what to do with the results.

Why a building inspection isn't enough

Building inspectors in QLD are licensed under QBCC for building inspection, not electrical work. Their inspection scope covers visible structural elements, roof condition, moisture, and timber pest evidence. They will note an obvious switchboard fault if it jumps out at them, but they won't:

• Open the switchboard and inspect the wiring inside.
• Verify RCD (safety switch) coverage across all circuits.
• Test socket outlet polarity.
• Identify aluminium wiring or aged insulation types.
• Assess the condition of in-ceiling wiring.
• Verify smoke alarm compliance.
• Test earth continuity or insulation resistance.

Those are all electrical-specific tasks that require an electrical licence and proper test equipment. A pre-purchase electrical inspection by a licensed sparky covers them all.

For homes built before 2000, and especially those built before 1980, a pre-purchase electrical inspection is not a luxury. It's basic due diligence.

What a proper electrical inspection covers

A thorough pre-purchase electrical inspection on a Brisbane home should include:

• Switchboard inspection: Age, type, condition, fuse vs circuit breaker, RCD coverage, labelling, evidence of DIY work, signs of overheating or corrosion.
• Meter box inspection: Condition, weatherproofing, presence of solar inverter, metering arrangement.
• Wiring type assessment: Visual identification of wiring types visible in the roof space and sub-floor (TPS, V75, tough rubber, cotton-covered rubber, lead-sheathed). Old wiring types have known failure modes.
• Socket outlet sample test: Polarity test on a sample of accessible powerpoints (10-20% of outlets). Reversed active/neutral is a genuine shock risk.
• Earth continuity check: Spot checks of earthing on accessible metal accessories.
• Safety switch (RCD) test: Test each RCD in the board for correct trip response.
• Smoke alarm assessment: Are they present? Are they the correct type? Are they interconnected? This has specific legal implications for the seller.
• General visual: Visible wiring condition in accessible roof space and sub-floor. Evidence of rodent damage, DIY modifications, or dangerous ad-hoc repairs.

The inspection takes 1.5-2.5 hours on a typical 3-4 bedroom Brisbane home. Invasive testing (pulling walls, destructive access) is not part of a pre-purchase inspection unless specifically agreed.

The seven nasties it catches

These are the issues I most commonly find when doing pre-purchase inspections in Camp Hill, Carindale, and Coorparoo:

1. Ceramic or rewirable fuse boxes with no RCDs. Common in pre-1990 homes. Fuses don't protect against shock. No RCDs means no protection for every circuit. Replacement cost: $1,650-$2,400.

1. Aluminium wiring. Installed widely in Brisbane during the 1970s and early 1980s. Aluminium expands and contracts with temperature changes, causing connections to loosen over decades. Loose connections arc and cause fires. Identification and remediation plan costs vary significantly.

1. Reversed polarity on socket outlets. Active and neutral wired backwards at one or more outlets. The outlet appears to work normally but is dangerous because the switched conductor is neutral rather than active.

1. No earthing on older accessories. Pre-1970s wiring often had no earth conductor. Adding new appliances to an unearthed installation creates shock risk.

1. DIY wiring modifications. Especially common in Coorparoo and Camp Hill homes that have had multiple owners with varying degrees of handy-person confidence. Junction boxes buried in walls. Permanent extension cords. Sub-standard connections behind switch plates.

1. Inadequate or non-existent smoke alarms. Legally the seller's obligation to correct before sale, but if you're buying before the compliance is confirmed, you inherit the problem.

1. Undersized wiring for modern loads. Original 1950s-1960s wiring was designed for a few lights and a fridge. Modern homes run dishwashers, EV chargers, induction cooktops, heat pumps. The original circuits often cannot handle additional loads safely.

What it costs and who does it

A pre-purchase electrical inspection by a licensed electrician in Brisbane: $300-$450 for a standard 3-4 bedroom home.

The inspection must be done by a licensed electrical contractor. In QLD, this means someone with an Electrical Contractor Licence (EC licence) issued by the Electrical Safety Office. A building inspector, a handyman, or an unlicensed person cannot issue a valid electrical inspection report.

Book the inspection during your due diligence period (usually the 14-21 days after you go unconditional, or specifically during the due diligence period if your contract includes one). The report should be provided in writing.

What you get in the report

A good pre-purchase electrical inspection report should include:

• A property description and date.
• Switchboard type, age estimate, and condition rating.
• RCD coverage assessment (which circuits are protected, which aren't).
• List of observed issues, categorised by urgency (safety hazard, non-compliant, or maintenance).
• Smoke alarm compliance assessment.
• Estimated remediation cost ranges for any issues found.
• Photos of key findings.
• Electrician's signature and licence number.

What it won't include: a pass/fail certificate (pre-purchase inspections are advisory, not compliance certifications). Any certificates would only be issued after remediation work is done and tested.

Using the report as a negotiation tool

This is the bit most buyers don't fully use.

If the report identifies, say, a ceramic fuse box with no safety switches ($2,100 to fix), aluminium wiring at several outlets ($800 to remediate), and three smoke alarms that are non-compliant for sale (seller's legal obligation to fix before settlement), you now have a documented basis to:

• Request the seller fix the smoke alarms before settlement (they're legally required to anyway).
• Request a price reduction of $2,000-$3,000 to cover the switchboard and wiring remediation.
• Walk away from the purchase with evidence, if the issues are worse than acceptable.

The $350 inspection cost against a negotiated $2,500 price reduction is a very good return. The $350 spent after you've already settled and found a problem is just an annoying expense.

A note on older postwar homes: If you're buying a Camp Hill, Coorparoo, or Norman Park home built between 1945 and 1975, treat a pre-purchase electrical inspection as mandatory, not optional. These homes have had 50-80 years of ad-hoc maintenance, multiple owners, and electrical standards that were updated several times since they were built. The combination of aged wiring, no RCDs, and possible aluminium conductors in 1970s extensions is so common in this cohort that I would be surprised to do a pre-purchase inspection on one of these homes and find nothing of note.

For comparison, a new home under 10 years old in Carindale or Wakerley is at very low risk of electrical surprises: it was built to current standards, certified at the time, and hasn't had enough years to develop problems. A pre-purchase inspection on a new home is still worth doing for peace of mind, but the risk profile is very different.

For pre-purchase electrical inspections in Camp Hill, Carindale, and Coorparoo, ring 0411 054 811. I can usually accommodate inspections within 2-3 business days during due diligence periods.

, John