Spotting warning signs during a home inspection.
When inspecting a property, it’s easy to get caught up in the layout, styling, or emotional appeal. But beneath the surface, certain signs can reveal costly problems. Knowing what to look for helps you make informed decisions, avoid unexpected repair bills, and negotiate confidently.
A home doesn’t need to be perfect, but you should understand the condition you’re buying into—and whether any issues are superficial, manageable, or genuine red flags.
Structural warning signs
Structural problems can be expensive to repair and may indicate deeper issues with the building's integrity.
Look out for:
Cracking in walls or foundations
Large horizontal or diagonal cracks
Cracks wider than 5mm
Cracks around door frames and windows
These may indicate structural movement or subsidence.
Uneven or sloping floors
Walk around and notice how the floor feels beneath your feet. Significant unevenness can signal foundation problems.
Doors and windows that don’t function properly
If they stick, jam, or won’t close, the underlying structure may have shifted.
Signs of moisture or water damage
Water is one of a property’s biggest enemies. Moisture issues can lead to mould, rot, and structural deterioration.
Check for:
Ceiling or wall stains
Often a sign of roof leaks or plumbing issues.
Bubbling or peeling paint
Moisture buildup beneath the surface can push paint outward.
Musty smells
A classic indicator of dampness or mould growth.
Rust or corrosion
Especially around plumbing fixtures or metal materials.
Roofing and guttering issues
A roof that isn’t functioning properly can cause extensive long-term damage.
Look for:
Sagging rooflines
Missing, damaged, or rusted tiles or sheets
Loose flashing
Gutters that overflow, rust or hold standing water
These may require immediate attention.
Drainage and site concerns
The land around a house matters just as much as the house itself.
Be wary of:
Water pooling near the foundations
Poor site drainage
Damp garden beds pressed against external walls
Erosion or sloping issues
Poor drainage can create moisture problems, weaken structural elements, and lead to expensive repairs.
Electrical or safety hazards
While you can’t see wiring behind walls, certain clues suggest electrical issues:
Outdated or damaged switchboards
Exposed wiring
Flickering lights
Warm or buzzing power points
If you spot these, a licensed electrician should assess the property.
Pest indicators
Timber pests—especially termites—cause severe and costly damage.
Look for:
Mud trails
Hollow-sounding walls
Timber that flakes or crumbles
Small holes or unusual patterns in wood
Always consider a combined building and pest inspection to be safe.
Cosmetic vs major issues
Not everything you see is a deal-breaker. Distinguish between:
Cosmetic issues:
Old paint
Scuffed flooring
Ageing fixtures
Usually inexpensive to fix and not structural.
Major issues:
Structural movement
Extensive moisture damage
Active termites
Failing roofing or stumps
Major issues require professional advice and may influence your offer price—or prompt you to walk away.
Let’s chat.
Want help assessing whether an issue is serious or just cosmetic? I can guide you through what’s normal, what’s negotiable, and what’s a genuine red flag. Let’s chat.
This page provides general information only and has been prepared without taking into account your objectives, financial situation or needs. We recommend that you consider whether it is appropriate for your circumstances and your full financial situation will need to be reviewed prior to acceptance of any offer or product. It does not constitute legal, tax or financial advice and you should always seek professional advice in relation to your individual circumstances. Subject to lenders terms and conditions, fees and charges and eligibility criteria apply.