Blackburn South homes often combine older brick veneer builds with updated bathrooms and tighter windows, which can trap moisture in wet areas, subfloors and built-in cupboards—ideal conditions for hidden mould.
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We inspect bathrooms, ensuites, laundries and kitchens, plus the adjacent bedrooms, hallways and cupboards where moisture migrates. This matters because mould often appears outside the wet area first—on skirting boards, wardrobe back panels, and carpet edges—especially where airflow is limited.
We assess for abnormal moisture patterns around shower recesses, baths, vanities, splashbacks, dishwasher bays and laundry troughs. Finding elevated moisture helps separate surface mould from a leak or seepage issue so remediation targets the cause, not just the symptoms.
Where the property has an accessible subfloor, we look for damp soil, poor ventilation, plumbing drips and mould on bearers/joists and underfloor insulation. Blackburn South homes with extensions can have altered airflow under the house, which can lift moisture into floorboards and internal wall cavities.
We check accessible roof spaces for signs consistent with roof leaks and condensation: staining, damp insulation, mould on framing, and bathroom exhaust discharge issues. This is important in homes with upgraded heating but older roof ventilation, where warm moist air can condense in winter.
We assess whether bathroom and laundry exhaust fans are effective and whether they vent to the outside rather than into the roof space. Poor extraction is a common driver of repeated mould in renovated wet areas, even when waterproofing and plumbing appear intact.
We identify likely condensation zones such as south-facing external corners, window reveals, behind couches and headboards, and built-in robes on external walls. These spots are often overlooked during inspections but are frequent mould sites in cooler months when windows stay closed.
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Find answers to the most frequently asked questions about our inspection service.
They can be. Renovated bathrooms often have better seals and tighter glazing elsewhere in the home, which reduces natural airflow. If an exhaust fan is underpowered, vents into the roof space, or people avoid opening windows in winter, moisture stays trapped and mould can form around ceilings, cornices, grout lines and adjoining cupboards. We assess ventilation, moisture patterns and typical hidden mould locations.
We check visible and concealed-risk areas: wet areas (bathrooms, ensuites, laundry, kitchen), adjoining walls and ceilings, wardrobes and cupboards on external walls, window reveals, skirtings, and any accessible subfloor or ceiling space. We also look for signs of condensation, leaks and poor ventilation that commonly cause ongoing mould, then document hotspots and likely drivers in the report.
In many cases, yes. Condensation-related mould often appears in cooler corners, around window frames, and behind furniture where airflow is restricted, and it can coincide with winter heating patterns. Leak-related mould is more likely to show persistent localised dampness near plumbing, showers, roofs or gutters. We look at location, moisture behaviour and building details to identify the most likely source.
Leafy, shaded blocks can stay cooler and take longer to dry after rain, which increases the chance of damp conditions around external walls, underfloor areas and shaded rooms. Dense planting can also reduce airflow to subfloor vents or keep soil moisture higher near the home. During the inspection we consider shading, drainage and ventilation so the report reflects the property’s local conditions, not just what’s visible indoors.
Yes. The report explains where mould is present or suspected, the likely moisture drivers, and practical actions to reduce recurrence. That can include improving exhaust ventilation, addressing leaks, correcting drainage, increasing subfloor airflow, or engaging a qualified mould remediation provider for affected materials. We focus on clear priorities so you can plan costs and timing before purchase, tenancy or renovation works.
Still have questions?
Contact us for more informationACE Building and Pest Inspections focuses on the moisture traps common in Blackburn South homes—wet areas, subfloors and low-airflow storage—so you can act on clear findings. Call 0413 163 187.