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Across Australia, there has been an increasing number of clandestine or meth labs found.

Although the authorities take the chemicals and equipment used in labs away, a large amount of contaminated residue is left on many surfaces of the affected site including walls, ceilings and floors, which creates a future health hazard for occupiers of the building.

Meth Labs can be found in almost any location, from houses, apartments, cars, rental storage units and motorhomes.

Clandestine Drug Lab Contamination & Biohazard Cleaning

Although Methamphetamine can be produced or cooked in many different locations there are certain warning signs that may indicate a drug house.

Making or cooking methamphetamine requires minimal training and experience and limited amounts of equipment and chemicals, both of which are relatively inexpensive. Meth Labs can be found in almost any location, from houses, apartments, cars, rental storage units and motorhomes. There are many external recognition clues alluding to a meth lab.

Some of the common warning signs of a suspected meth lab include:

  • Unusual odours including ether, ammonia, acetone, or other chemicals
  • Frequent visitors, particularly at unusual times
  • Extensive security measures or attempts to ensure privacy
  • Secretive or unfriendly occupants
  • Excessive amounts of trash, particularly chemical containers, coffee filters or pieces of cloth that are stained red, and duct tape rolls
  • Curtains always drawn or windows covered with aluminium foil or blackened on residences, garages, sheds, or other structures
  • Evidence of chemical waste or dumping


4 Step Methamphetamine Contamination Remediation Process

The first and most vital step of a Meth lab Remediation Process is to contact licensed, professional and qualified decontamination contractors. Our team of trained experts have hazardous materials training and know how to properly evaluate and decontaminate meth labs.


Many home buyers unknowingly buy homes contaminated by methamphetamine, which when smoked or manufactured, release dangerous chemicals into the air that can cling to clothing, carpets, and walls. A dream home can quickly turn into a nightmare. A contaminated home can not only cause sickness but also be uninhabitable for a long time. We have come across home buyers who have spent tens of thousands of dollars in remediation and reconstruction, adding financial burden and delay to moving in.

The health consequences of contamination in the home can be serious, and young children are particularly at risk. If the property you’re thinking of buying was previously occupied by meth users or once contained a meth lab, you should have it decontaminated by professional meth lab cleaning technicians before moving in. Even if the property has no past connections to meth, you should consider using a DIY drug testing kit or have professional technicians inspect the property before moving in to ensure no traces of contamination.

Home test kits are available that identify a full range of drug residue. Biohazard Cleaning offers an inexpensive, on the spot test for meth residue. However, it should be noted, a positive test for meth residue does not necessarily indicate manufacturing was done in the house. It does indicate that the finished product was present.

Before you make an offer to buy the home, always ensure that you have completed a home inspection for meth. Our Meth Lab Remediation and Decontamination technicians are qualified to properly inspect and clear homes for meth contamination and other chemicals. Internationally trained in HAZMAT and Methamphetamine Decontamination and Remediation techniques, Biohazard Cleaning is the industry leader in meth lab testing, decontamination and clean ups in across all locations in Australia. No region is too remote.


Once any materials used in the manufacturing of meth or the drug lab equipment as been removed, an onsite survey and inspection is completed by a Meth Lab technician from Biohazard Cleaning to gain a preliminary assessment of the property and affected area where the goal is to provide information pertaining to, and to assist with, the development of the clean up plan. Any information gathered in the first step of the remediation process is documented in a written summary.


The need for pre forensic testing is dependent on the circumstances of each property. Pre forensic testing can significantly reduce remediation costs by singling out contaminated areas only and the automatic discarding of any materials too contaminated to be cleaned. Pre-forensic testing is performed for a several reasons including to establish the reference conditions for remediation and to meet sampling requirements for insurance companies and other associated parties.


Meth Lab Remediation technicians follow a stringent process to ensure the property decontaminated. A remediation action plan is drafted based on the pre forensic testing results and determines how the affected areas will be remediated to a safe and hazard-free condition. The remediation action needed for each property is determined on a case-by-case basis, and can include disposal of furniture and floor coverings and stripping wall sheeting or beams which are not able to be remediated.


The post-forensic test is a crucial step of the methamphetamine decontamination process. The property will be re-tested and samples sent to an independent laboratory for analysis. A final report is issued if the property is deemed safe for re-occupancy where meth levels are less than 0.5µg/100cm2. The final report should include processes undertaken to remediate the meth lab, waste management and results indicating the property has been cleaned and decontaminated to Australian standards.