Brunswick’s heavily renovated bungalows and terraces are full of old-meets-new junctions where cold spots condense, alongside an apartment boom with tight wet areas. FreshDuct removes the mould and fixes the moisture, with photo proof.
Mould where a new extension meets the old house, or in a bungalow sleepout? Cold junctions and poor sealing are usually why.
Brunswick is one of Melbourne’s most enthusiastically renovated suburbs. Behind the Sydney Road shopfronts sit rows of single-fronted Victorian terraces, solid Edwardian and California bungalows, and former factories, and a huge share of them have been extended, reworked and modernised — rear open-plan additions, second-storey pop-tops, reconfigured bathrooms and laundries. On top of that, apartment developments have risen right across the suburb. It is this collision of old and new that creates a lot of the local mould.
When a well-insulated modern extension is joined to an old, uninsulated brick or weatherboard wall, the junction between them becomes a cold spot — and cold spots are where warm, moist indoor air condenses first. Brunswick homes throw up mould in exactly these places: the corner where a new addition meets the original house, an old bungalow sleepout or lean-to that was never properly sealed, and a renovated bathroom whose fancy fitout skipped a properly ducted fan. The new apartments have their own version, with tight, internal, single-aspect wet areas that cannot ventilate.
FreshDuct removes the mould and treats the surfaces, then works out why that particular spot is cold and damp: an insulation or sealing gap at a junction, a renovation that left extraction into the roof or nowhere, an old sleepout with no airflow. We fix the ventilation, advise on the cold-junction issue, and document every job with before and after photos.
The moisture sources we look at first in Brunswick – because removing mould only lasts if the cause is fixed.
Where a Brunswick extension meets the original uninsulated house, a cold junction forms and warm moist air condenses there first. Mould settles in that corner – we treat it and address the airflow and cold-spot problem behind it.
Many Brunswick bathroom renovations look sharp but skipped a properly ducted fan, so steam has nowhere to go. We check where the extraction actually vents and fix it, then treat the mould it caused.
Brunswick’s apartment boom brings tight, internal, single-aspect bathrooms that cannot cross-ventilate. We treat the mould and improve how these sealed spaces shed moisture.
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.
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Established mould safely removed and affected surfaces treated – not just painted over.
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Leaks, condensation, subfloor damp and failed ventilation identified and put right.
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Weak or clogged bathroom, kitchen and laundry fans cleaned or upgraded so moisture leaves the room.
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Damp, poorly ventilated subfloors ventilated so ground moisture stops feeding mould above.
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Plain-English advice and airflow fixes so the mould does not simply come back next winter.
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The most common Brunswick mould spot is the junction where a slick new extension meets the old, uninsulated original — a cold seam that condenses moisture no matter how new the paint is. It is a building-physics problem, not a cleaning one.
We remove the mould, then get to the cause: the extraction a renovation forgot, the airflow a sleepout never had, the cold junction that needs attention. That is what stops it returning at the same seam each winter.
FreshDuct services Brunswick and the inner north 7 days a week. We regularly work the neighbouring homes and units of Northcote, Fitzroy, Collingwood and Essendon, so Brunswick is right in our normal territory.
From the renovated bungalows off Sydney Road to the new apartments near the stations, we can usually offer a prompt inspection and prioritise mould at a cold renovation junction or in a windowless reworked bathroom.
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 Brunswick and the surrounding suburbs. Explore nearby areas and related FreshDuct services.
Because that junction is usually a cold spot – a well-insulated new addition meeting an old, uninsulated wall – and warm, moist indoor air condenses on the coldest surface it can find. So mould settles right on the seam. We treat the mould and address the airflow and cold-junction issue, rather than just cleaning a corner that will condense again.
Often because the renovation looked great but the exhaust fan was not properly ducted to the outside, so steam has nowhere to go. We check where the fan actually vents, correct it so extraction works outside, and treat the mould, so a smart new bathroom finally stays dry.
Yes. FreshDuct inspects, removes and remediates mould across Brunswick and the surrounding inner north, 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 Brunswick 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 Brunswick 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.