Visual assessment of the impacts noting the extent of mould growth, water damage, stains and other potential signs of impacts (paint blistering, efflorescence, cracking, bulging etc).

Encapsulation and Capping

Site Scrapes

Soil Reclassification

Asbestos Sifting / Screeding

Manual Picking

If visible mould is not detected after a thorough inspection but is suspected, microbial air and surface sampling in combination with moisture measurements from affected building materials may be carried out to determine the potential level of exposure and to determine the nature of the contamination. In doing so, potential ‘hidden’ sources such as behind walls or in cavities may also be determined:

Non-viable airborne samples are collected using Air-O-Cell sampling cassettes coupled to a Bio-pump. Air-O-cells contain a gel covered plate which is examined under microscope to directly determine the quantity of fungi collected on the gel media. Identification of fungi is on the basis of spore characteristics and is generally considered accurate to genera level.

Non-viable surface samples are collected using Bio-Tapes; a flexible plastic slide with a covered adhesive portion, which is examined under microscope to directly determine the quantity of fungi collected on the adhesive portion of the plate.

Additionally, an ATP Meter may be used to determine the Hygiene status of the contaminated surfaces by providing an instantaneous reading, with the unit providing a result in Relative Light Units (RLU). The adopted criteria of 60 RLU is used to indicate the status of cleanliness. Levels below 60 RLU are considered clean and above 60 RLU warrant further investigation.

Moisture measurements are undertaken of building materials (floors, walls and ceiling) using a Protimeter MMS2/FLIR MR277 moisture meter and Tramex Moisture Encounter Plus meter. Moisture readings above 15% WME generally indicate an elevated moisture reading and should be further investigated.

Relative humidity, temperature, dew point and absolute humidity readings within the Impacted Area are collected to locate indoor areas that may have elevated humidity and contribute to elevated moisture within the building, which can potentially support mould growth.

If visible mould is not detected after a thorough inspection but is suspected, microbial air and surface sampling in combination with moisture measurements from affected building materials may be carried out to determine the potential level of exposure and to determine the nature of the contamination. In doing so, potential ‘hidden’ sources such as behind walls or in cavities may also be determined:

Non-viable airborne samples are collected using Air-O-Cell sampling cassettes coupled to a Bio-pump. Air-O-cells contain a gel covered plate which is examined under microscope to directly determine the quantity of fungi collected on the gel media. Identification of fungi is on the basis of spore characteristics and is generally considered accurate to genera level.

Non-viable surface samples are collected using Bio-Tapes; a flexible plastic slide with a covered adhesive portion, which is examined under microscope to directly determine the quantity of fungi collected on the adhesive portion of the plate.

Additionally, an ATP Meter may be used to determine the Hygiene status of the contaminated surfaces by providing an instantaneous reading, with the unit providing a result in Relative Light Units (RLU). The adopted criteria of 60 RLU is used to indicate the status of cleanliness. Levels below 60 RLU are considered clean and above 60 RLU warrant further investigation.

Moisture measurements are undertaken of building materials (floors, walls and ceiling) using a Protimeter MMS2/FLIR MR277 moisture meter and Tramex Moisture Encounter Plus meter. Moisture readings above 15% WME generally indicate an elevated moisture reading and should be further investigated.

Relative humidity, temperature, dew point and absolute humidity readings within the Impacted Area are collected to locate indoor areas that may have elevated humidity and contribute to elevated moisture within the building, which can potentially support mould growth.


We remove hazardous materials including lead paint and synthetic mineral fibres (SMFs). These materials should be removed by professionals or a team who has specialist training. This ensures safety procedures are followed and comply with industry best practices. 


If you’re dealing with mould in your home or business, AARCO is here to help. 

Our fully certified team uses the latest tools and safe, proven methods to remove mould for good and stop it from coming back. We know how dangerous mould can be to your health and property—especially in Australia’s humid climate—so we treat every job with care and urgency. Whether it’s a bit of mould in the bathroom or a bigger issue under the house, we’ve got the experience and know-how to sort it out quickly and properly.

At AARCO, we believe in doing the job right the first time, with no hidden costs and no shortcuts. From your free initial inspection to thorough clean-up and prevention tips, we’ll guide you through every step with honest advice and friendly service. We’re locals who genuinely care about keeping Aussie homes safe and healthy. So if you’ve spotted mould or even just suspect it, give us a call—your health and peace of mind are worth it.