Subfloor mould remediation and ventilation
A damp, poorly ventilated subfloor grows mould, smells musty and slowly damages timber floors and framing. We remove the mould, deal with the moisture source and install the right subfloor ventilation, passive or mechanical, so the space stays dry.
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Why subfloors get damp.
The subfloor is the space between the ground and your floorboards. It's out of sight, so damp often goes unnoticed until there's a musty smell in the house, cupping floorboards or mould on the timber below.
Many older Melbourne homes on stumps have blocked or too few vents, garden beds built up against the walls, or drainage running toward the house. Those conditions trap moisture under the floor, and some of that moist air rises into the living space.
We start by finding why the subfloor is damp: drainage, a plumbing leak, blocked vents or simply not enough airflow. Then we remove the mould and fit the right ventilation for the space.
Signs you need subfloor remediation & ventilation.
- A musty smell inside, especially in winter
- Floorboards that are cupping, soft or moving
- Visible mould or white growth on subfloor timbers
- Condensation or water pooling under the house
- Blocked or very few subfloor vents
- Mould returning in rooms above the subfloor
Recognise any of these?Get it checked before it spreads. We'll find the cause.
How subfloor remediation works.
Select a step to see what happens.
Ready when you are.Tell us what's happening and we'll book the earliest time.
What subfloor remediation includes.
- Cause of the dampDrainage, leak, blocked vents or airflow.
- Subfloor remediationMould removed from affected timbers.
- Ventilation systemPassive or mechanical, matched to the subfloor.
- Before and after readingsProof the subfloor is drying out.
Who it's for.
Homeowners, and the professionals who manage buildings and claims. We tailor the reporting to whoever needs it.
- Homeowners
- Landlords & property managers
- Property buyers
Trusted in Melbourne homes and buildings since 2012.
Certified technicians, honest advice and results you can see in the readings.
“We'd been battling mould in our son's bedroom for years. After Mould Squad found the leak in the wall and treated the room properly, his asthma has noticeably improved. I wish we had called them sooner.”
“Would definitely recommend mould remediation services from Mould Squad. They are the best in the industry and have done an amazing job at our home, making it mould free.”
“Really impressed with the clear communication. No scare tactics, just honest advice, photos and a practical plan. The team turned up on time, kept everything tidy and followed up with air quality results so we knew it had actually been fixed.”
“Nil is a genuine guy and provides an amazing service when it comes to water damage restoration. Our house was damaged recently due to heavy rains and Nil and his team have done some amazing work restoring our roof that had been damaged by rain.”
Subfloor ventilation questions, answered.
Still unsure? Talk to a technician. It costs nothing to ask.
What's the difference between passive and mechanical subfloor ventilation?
Passive ventilation uses vents in the walls or foundation so air moves through the subfloor naturally. Mechanical ventilation uses fans to actively move air through the space, which suits very damp subfloors, poorly vented homes or sites with high humidity.
Will subfloor ventilation get rid of the musty smell?
If the smell comes from damp or mould under the floor, yes, once the mould is removed and the subfloor dries out. We confirm the source during the assessment so we fix the right thing.
Do subfloor fans run all the time?
Systems can run continuously or on a timer or humidity control, depending on the subfloor and the system. We recommend the right setup for your home.
Do you also install bathroom and laundry exhaust fans?
Yes. Many mould problems start in bathrooms and laundries without effective exhaust. We fit quiet, high-performance fans with backdraft dampers to get moist air out of the house.
Why does it smell musty under my house?
A musty smell usually means damp timber and mould in the subfloor. Common causes are blocked or too few vents, poor drainage, a plumbing leak or garden beds built up against the walls. We find which one it is before recommending ventilation.
Subfloor ventilation across Melbourne and Victoria.
We're based in Dandenong South and work across all of Melbourne and regional Victoria, for homes, rentals, strata buildings and commercial sites.
- South-eastDandenong, Berwick, Cranbourne, Pakenham, Frankston and the Mornington Peninsula
- EastBox Hill, Glen Waverley, Ringwood and the Yarra Ranges
- NorthPreston, Coburg, Epping and Craigieburn
- WestFootscray, Sunshine, Point Cook and Werribee
- CBD and inner suburbsMelbourne CBD, Southbank, Richmond, St Kilda and surrounds
- Regional VictoriaGeelong, Ballarat, Bendigo, Gippsland and beyond
Not sure if we cover your area? Call 1300 677 823.
Found mould or water damage? Let's fix it properly.
Free quote, no obligation. For leaks and flooding, we dispatch a team immediately.