17/430 Albert St,
East Melbourne VIC 3002
East Melbourne VIC 3002
We provide specialist contamination cleanup for residential, commercial, and industrial properties across Melbourne. Our IICRC-certified technicians respond 24/7 to time-critical contamination events, including sewage backflow, riverine floodwater intrusion, and biohazardous spills. An event involving contaminated water, known as Category 3 or “black water,” presents immediate structural and health hazards that cannot be addressed with conventional cleaning methods. These situations require a documented, science-based approach to remediation to ensure the property is returned to a safe, verifiably clean condition.
Our work is grounded in the specific challenges of Melbourne’s environment. We manage the aftermath of flash flooding that overwhelms stormwater systems in suburbs like Elwood and Port Melbourne, as well as significant riverine events impacting properties along the Yarra and Maribyrnong rivers. The October 2022 Maribyrnong River flood, which inundated over 500 properties, highlighted the reality of urban flood risk and the specific contaminants, including silt and agricultural runoff, that must be managed. Our team is equipped to handle these complex scenarios, ensuring all hazardous materials are contained and removed in accordance with Australian remediation standards.
Water from a sewage backup, overflowing river, or storm drain is not just water. It is a toxic slurry of bacteria, viruses, parasites, and chemical wastes that poses a significant health threat. Exposure to pathogens like E. coli, Salmonella, Giardia, and Hepatitis A can cause severe gastrointestinal illness, infections, and respiratory distress. These microorganisms aerosolize and become airborne, posing a risk even without direct contact.
Contaminants readily absorb into porous building materials. Gyprock, timber framing, insulation, and carpet padding act like sponges, providing an ideal breeding ground for microbial growth. Without immediate and professional intervention according to the AS/IICRC S520 standard, a contamination event will lead to widespread structural mould, persistent odours, and an environment that is unsafe for occupants. Our primary objective is to contain the hazard, remove all affected materials, and execute a multi-step decontamination process that makes the indoor environment safe again.

Initial Safety Assessment & Hazard Mapping
Our first action on-site is to establish a safe perimeter and conduct a risk assessment. We use FLIR E8-XT thermal imaging cameras and Tramex ME5 non-invasive moisture meters to map the full extent of water migration, identifying hidden moisture in wall cavities, subfloors, and ceiling spaces. This initial data forms the basis of our remediation plan and the documentation for your insurance claim.

Hazard Containment & Negative Air Pressure
The contaminated zone is isolated from the rest of the property using 6-mil polyethylene sheeting and containment barriers. We establish negative air pressure using HEPA-filtered air scrubbers, such as the Thorair Hulk 1000CFM, to prevent aerosolized contaminants from escaping the work area during demolition.

Contaminated Material Removal & Water Extraction
All physically contaminated materials, including sewage, silt, and debris, are removed. We use truck-mounted and portable extraction units to remove gross water. Porous and semi-porous building materials that have been directly impacted by Category 3 water, such as drywall, carpet, and insulation, are cut out, bagged, and disposed of according to EPA guidelines.

Sanitisation & Disinfection
After the removal of contaminated materials, all remaining structural surfaces are thoroughly cleaned and then treated with an EPA-registered, hospital-grade antimicrobial disinfectant. This step is critical for eliminating pathogenic organisms that have penetrated surfaces like timber frames and concrete slabs.

Structural Drying & Verification
We install a balanced drying system using low-grain refrigerant (LGR) dehumidifiers, like Phoenix and BlueDri models, and high-velocity air movers. Our technicians monitor temperature, humidity, and material moisture content daily, adjusting the equipment to achieve the documented drying goals. The process is only complete when moisture readings confirm the structure has returned to its pre-loss dry standard, a step verified with our moisture mapping tools.
We offer targeted solutions for the most common and complex contamination scenarios affecting homes and businesses.
A blocked drain or a municipal sewer main failure can force raw sewage back into a property, contaminating everything it touches. This is the most hazardous form of water intrusion. Our team follows strict protocols outlined in the IICRC S520 standard to manage these events. We perform a complete removal of all contaminated porous materials, apply hospital-grade biocides, and execute a controlled structural drying process to prevent secondary damage and microbial amplification. We have extensive experience addressing sewage backups in Melbourne’s older housing stock with aging clay pipes, as well as in newer developments where plumbing has been compromised.
Our capabilities extend to the remediation of other hazardous materials, including chemical spills and trauma scenes. These situations require strict adherence to safety protocols and the use of specific personal protective equipment (PPE). Our technicians are trained to contain, neutralize, and dispose of a range of biohazardous and chemical agents, restoring the environment to a safe and compliant state for re-occupancy.
Our team’s expertise is our primary asset. Every lead technician holds certification from the Institute of Inspection, Cleaning and Restoration Certification (IICRC), the global standard-setting body for our industry. We strictly adhere to the ANSI/IICRC S500 Standard for Professional Water Damage Restoration and the AS/IICRC S520 Standard for Professional Mould Remediation. This commitment means we follow a documented, scientific process, not guesswork.
This training is supported by an inventory of industry-leading equipment. We invest in technology that allows us to work efficiently and verify our results, including:
We maintain full public liability insurance coverage, providing peace of mind for our residential and commercial clients throughout Melbourne.
Our mobile response units provide contamination cleanup services across the entire Melbourne metropolitan area and beyond. We have specific experience managing water intrusion events unique to different parts of the city:
If your property is impacted, our team is positioned to respond, typically within 60-90 minutes.
Contaminated water, or Category 3 “black water,” is grossly unsanitary and contains pathogenic agents. Sources include sewage backflow, rising river water, and stormwater that has mixed with ground contaminants. It requires professional remediation and should never be handled without appropriate PPE.
Yes. Black water contains a cocktail of dangerous bacteria, viruses, and parasites that can cause serious illness if ingested or if it comes into contact with skin. The indoor air quality is also compromised, posing a respiratory risk.
Cleanup must begin immediately. The longer contaminated materials remain in the property, the greater the risk of pathogen amplification, mould growth (which can start in 24-48 hours), and irreversible damage to structural components.
The timeline varies based on the scope. A minor sewage overflow in a bathroom might take 1-3 days for removal, drying, and sanitisation. A major flood affecting an entire ground floor, like those seen after the 2022 Maribyrnong event, could take a week or more, involving significant demolition and extended structural drying time. We provide a detailed timeline after our initial on-site assessment.
Yes, that is the primary goal. By following the AS/IICRC S520 standard, we remove the source contaminants, affected materials, and moisture. This process, verified by post-remediation testing when required, eliminates the hazardous pathogens and prevents the establishment of a mould reservoir, ensuring the property is returned to a safe state.
Contaminated water is a time-critical emergency that requires an immediate, professional response.