At High Demand Restoration, we pride ourselves in being able to expertly address even the most challenging mould problems in your property. One area where we often see mould issues is in people's bathrooms. These mould issues tend to be long standing with the occupiers stating they have 'Tried Everything' to fix the problem.

At High Demand Restoration, we pride ourselves in being able to expertly address even the most challenging mould problems in your property. One area where we often see mould issues is in people's bathrooms. These mould issues tend to be long standing with the occupiers stating they have 'Tried Everything' to fix the problem.
When we address such a problem, we leave no stone unturned during our investigation and resolution of your mould problems.

During this step, we inspect every square inch of your bathroom—around and behind mirrors and cabinets, around and on top of door and window frames, showers, baths, and more. If necessary, we may even remove small portions of drywall or access roof cavities above your bathroom.


The most commonly overlooked step in mould remediation is containment. During this phase, we engineer a physical barrier to contain the mould spores within a single area. Without containment, mould spores can quickly spread throughout the home, increasing the likelihood of further outbreaks.
The third step in our process is to swab the affected areas to assess the concentration of mould. This provides a baseline for later comparison, allowing us to demonstrate the significant reduction in mould spores.


Throughout the project, we will run a HEPA filter within the contained area. This filter continuously removes mould spores and other contaminants from the air, reducing the chances of contamination outside the containment zone.
Using a range of chemical and physical techniques we will removal all mould within your bathroom. This may include removing grout, removing silicone, sanding walls as well as spraying and wiping non-porus surfaces.


Due to the porous nature of grout, hidden mould spores can continue to proliferate even after treatment. We recommend carefully removing the affected grout and replacing it with fresh grout. Additionally, we suggest sealing the grout to reduce water penetration in the future.
After treatment, we recommend repainting any walls and ceilings including adding a mould-resistant additive. This helps to create a protective barrier that not only enhances the appearance of your space but also prevents the return of future mould growth by inhibiting the conditions that support it.


Over time, caulking can degrade and become a perfect hiding place for mould. We recommend removing all old caulking and replacing it with fresh, contaminate free caulking.
An often overlooked but important step is cleaning the sink drain, shower drain, and overflow drains. These drains often contain mould spores, which can make their way back into your bathroom if not properly addressed.


To reduce the chances of mould in the future, we will install an exhaust fan. An exhaust fan pulls warm, damp air out of the bathroom, making the conditions less conducive to mould growth.
Upon completion of the project, we will conduct a final swab to assess the improvements we’ve made to the environment. This will provide you with peace of mind that your bathroom is now safe and habitable for your family.

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Contact Us Today
After heavy rain caused water ingress in a Rosebery home, mould kept returning. We found cracked skirting, high moisture, and heavy hidden mould in the wall cavity. Our team removed affected Gyprock u... ...more
Mould ,Flood
November 26, 2025•2 min read

Physical removal is the only effective way to eliminate mould at its source, which is why the IICRC S520 standard prioritises cutting out contaminated materials over relying on sprays. ...more
Mould
November 20, 2025•1 min read

Hidden mould can thrive behind walls, under floors, or in ceilings where moisture lingers. At High Demand Restoration, we use advanced invasive inspection methods to detect and safely remove concealed... ...more
Mould
November 06, 2025•3 min read

After heavy rain caused water ingress in a Rosebery home, mould kept returning. We found cracked skirting, high moisture, and heavy hidden mould in the wall cavity. Our team removed affected Gyprock u... ...more
Mould ,Flood
November 26, 2025•2 min read

Physical removal is the only effective way to eliminate mould at its source, which is why the IICRC S520 standard prioritises cutting out contaminated materials over relying on sprays. ...more
Mould
November 20, 2025•1 min read

Hidden mould can thrive behind walls, under floors, or in ceilings where moisture lingers. At High Demand Restoration, we use advanced invasive inspection methods to detect and safely remove concealed... ...more
Mould
November 06, 2025•3 min read














ABN: 35677824609
ACN: 677824609
IICRC Certification: 70174269
Sydney-Wide, Wollongong, The Illawarra & Surrounds
Call us today (02) 9090 4625
Email: [email protected]