Melton’s reactive clay soils shrink and swell with the seasons, cracking slabs, paths and walls and opening gaps that let moisture in. FreshDuct removes the mould that follows and fixes the moisture, with photo proof.
Cracks in the slab, paths or walls and mould appearing nearby? Reactive clay movement is often letting damp in.
Melton, out on the western basalt plains, is built on some of the most reactive clay soil around Melbourne — ground that swells noticeably when it gets wet and shrinks and cracks when it dries out through the hot, dry summers the west is known for. This constant movement underfoot is a defining feature of building in Melton, and it plays directly into the local mould problem.
As reactive clay expands and contracts with the seasons, it moves everything sitting on it. Slabs shift and crack, external paths and paving heave and split, and hairline cracks open in walls and around windows and wet areas. Each of those cracks is a potential path for moisture — water gets in around a cracked slab edge or a split in an external wall, and the ground itself pushes damp against a moving slab. Inside the sealed, energy-efficient new estate homes that dominate Melton, this ground-driven moisture combines with trapped indoor humidity and the big temperature swings of the plains, so mould appears at floor level, around windows, and near the cracks the clay has opened. Owners often see the cracking without realising it is also letting damp in.
FreshDuct removes the mould and treats the surfaces, then works out where the moisture is getting in: taking readings around cracks and slab edges, assessing how the reactive ground is moving water against the home, checking that fans vent outside, and improving airflow for the indoor load. Every job is documented with before and after photos.
The moisture sources we look at first in Melton – because removing mould only lasts if the cause is fixed.
Melton’s highly reactive clay swells and shrinks with the seasons, cracking slabs, paths and walls. Those cracks open paths for moisture to get in – we check around slab edges and cracks to find where damp is entering.
As the clay moves, slab edges crack and water gets in against a shifting slab, pushing moisture into floors and lower walls. We assess slab-edge moisture as part of addressing ground-driven mould.
Melton’s new estate homes are sealed tight, and the plains’ big temperature swings drive condensation on top of the ground moisture. We get extraction and airflow working so the indoor load clears.
Real photos from FreshDuct mould, moisture and ventilation jobs. We document every job with before and after photos.



One local team for the whole problem – from inspection and safe removal to fixing the ventilation and moisture that caused it.

We inspect the affected areas, take moisture readings and trace where the damp is coming from.
View service →

Established mould safely removed and affected surfaces treated – not just painted over.
View service →

Leaks, condensation, subfloor damp and failed ventilation identified and put right.
View service →

Weak or clogged bathroom, kitchen and laundry fans cleaned or upgraded so moisture leaves the room.
View service →

Damp, poorly ventilated subfloors ventilated so ground moisture stops feeding mould above.
View service →

Plain-English advice and airflow fixes so the mould does not simply come back next winter.
View service →

In Melton, the reactive clay is always moving — swelling, shrinking, cracking slabs and walls — and each crack it opens is a way for moisture to get in. The mould near a cracked wall or slab edge is connected to that movement.
We remove the mould, then find where damp is entering around the cracks and slab, check that ventilation clears the indoor moisture, and address the sources, so the fix targets the ground-driven cause rather than just the stain.
FreshDuct services Melton and the western growth corridor 7 days a week. We regularly work the neighbouring homes of Caroline Springs, Footscray, out to Geelong and up toward Gisborne, so Melton is part of our normal run.
From the newest estates to the established parts of Melton, we can usually offer a prompt inspection and prioritise mould near cracked slabs or walls where the reactive clay has opened a path for moisture.
A methodical, documented job – find the moisture, remove the mould, and fix the cause so it stays gone.
We assess the affected areas and check the whole home, not just the visible patch.
Moisture readings and airflow checks pinpoint the leak, condensation or damp behind it.
Established mould is safely removed and affected surfaces are treated.
Failed exhaust fans, poor ventilation, subfloor damp or leaks are put right.
Before & after photos so you can see exactly what was done.
Honest, plain-English advice to keep the area dry and mould-free.
We cover Melton and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
Often, yes. Melton’s reactive clay swells and shrinks with the seasons and cracks slabs, paths and walls, and those cracks open paths for moisture to get in around slab edges and wall splits. Combined with a sealed home, that damp feeds mould. We take readings around the cracks, treat the mould, and address where the moisture is entering, not just the surface.
Yes. As the reactive clay moves, it cracks slab edges, external walls and paths, and water gets in through those gaps while the ground pushes damp against a shifting slab. That moisture then feeds mould at floor level and near the cracks. We assess the slab edge and cracks, treat the mould, and address the drainage and airflow so it stops.
Yes. FreshDuct inspects, removes and remediates mould across Melton and the surrounding western growth corridor, 7 days a week – and we fix the moisture source behind it so it does not come straight back. Call 04 3191 8137 or request a free quote.
It depends on how widespread the mould is, what is causing the moisture and how much remediation or ventilation work is needed – a single affected bathroom is quick, while a whole-home damp problem is quoted separately. You get clear pricing up front before any work starts. Call 04 3191 8137.
Always. Cleaning mould without fixing the moisture behind it only buys a few weeks. In Melton we trace the cause – a leak, condensation, a failed exhaust fan or a damp subfloor – and put it right as part of the job. That is the difference between remediation and a wipe-down.
We service Melton and nearby suburbs 7 days a week and prioritise homes where mould is spreading or a leak is actively wetting the building. Call 04 3191 8137 for the soonest availability.
Mould inspected, safely removed and the cause fixed – a clean, documented job with photo proof. Available 7 days.
Tell us where the mould is – we respond fast, 7 days.