Landlords & property managers
Fast turnaround between tenancies with full documentation to support insurance and re-letting decisions.
If a property has been used to smoke or manufacture methamphetamine, residue can remain in walls, carpets and ductwork long after it looks clean. Delta Environmental tests, decontaminates and independently certifies properties safe to occupy again.
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Also searched for as meth cleaning, meth residue removal, ice residue removal or drug lab cleaning, methamphetamine use and manufacture leaves behind a chemical residue that soaks into porous surfaces such as plasterboard, carpet, curtains, insulation and air conditioning ducts. Unlike general grime, this residue is often invisible and odourless within weeks, which is why so many affected properties in Australia are bought, sold or re-let without anyone realising there is a problem until a tenant, buyer or property manager orders a test.
Delta Environmental provides end-to-end meth decontamination for homeowners, landlords, real estate agents and body corporates across Australia. We start with independent, NATA-accredited laboratory testing to confirm contamination and establish exactly which rooms and surfaces are affected, then carry out targeted decontamination using industry-approved methods rather than simply repainting over the problem.
Every job finishes with independent re-testing. A commonly used residential clearance benchmark referenced across the Australian remediation industry sits around 0.5 micrograms of methamphetamine per 100 square centimetres, though acceptable levels can vary by state guidance and by end use of the property. We do not issue our own pass mark: the same independent, accredited laboratory that identified the contamination verifies the clearance, so you get a result you can rely on for insurance, tenancy or sale purposes.
Because meth contamination is invisible, many Australian property managers now build a residue test into their standard vacate or acquisition checklist, particularly in areas with a known history of drug-related tenancies. A test typically takes only a day or two to return results, a small step compared to the cost and disruption of discovering contamination after a new tenant or owner has already moved in.
Meth residue rarely announces itself. These are the most common triggers for testing in Australian homes and rental properties.
Accredited technicians swab affected surfaces across the property.
We translate lab results into a clear, itemised decontamination plan.
The affected zone is sealed off to protect the rest of the property.
Surfaces are chemically treated, cleaned and where needed stripped back.
The same accredited lab re-tests to confirm the result.
An independent, NATA-accredited laboratory takes surface swabs from likely hotspots including bedrooms, living areas and ceiling cavities, then reports exact contamination levels room by room.
We never mark our own homework. All pre- and post-test results come from an independent, NATA-accredited laboratory.
You receive a clear paper trail covering initial results, scope of works and final clearance, useful for insurers, agents and future buyers.
No signage, no fuss. Our teams work discreetly, which matters to landlords and families who want the matter handled quietly.
From metro Sydney to regional Queensland, our technician network can respond to properties across every state and territory.
We do not stop at a clean-looking surface. Every meth decontamination job is closed out with independent, laboratory-verified clearance testing, so the result is backed by data, not a visual check.
Booking meth decontamination with an unfamiliar company can feel like a leap of faith, so we keep our side of the arrangement simple and transparent. You get a clear, itemised scope of works before anything begins, a fixed appointment window rather than a vague all-day slot, and a single point of contact for the life of the job rather than being passed between call centres.
If a job turns out to be larger or more complex once work is underway, we explain why, put any change in writing, and get your sign-off before proceeding. There are no surprise line items on the final invoice.
We quote based on what your property actually needs, not a one-size-fits-all package. If a lighter touch will do the job safely, that is what we will recommend.
Clandestine drug residue is treated as a health hazard rather than ordinary dirt, and approaches to it vary between Australian states and territories. Several jurisdictions issue their own public health guidance for clandestine drug laboratories and meth-affected residential properties, and property managers, insurers and public housing authorities increasingly require documented testing before re-letting or reselling a suspected property.
Because there is no single uniform national standard, Delta Environmental works from the most conservative applicable state guidance for the property's location and always defers final pass or fail decisions to the independent testing laboratory rather than making that call ourselves.
We also keep a close eye on how each state's guidance treats children's health, given young children spend more time on floors and put hands and objects in their mouths more often than adults, which generally justifies a more conservative approach in family homes than in commercial premises.
A remediation company that tests its own work has an obvious conflict of interest. Every result we act on, and every clearance we hand over, comes from a laboratory with no financial stake in the outcome.
Every meth decontamination job is different. These are the main factors that influence the final price.
Extent of contamination. A single bedroom with light residue costs far less to remediate than a whole house with manufacture-level contamination.
Materials affected. Hard surfaces like tiles and glass are cheaper to decontaminate than porous materials such as carpet, curtains and insulation, which often need replacing.
Number of retests required. If initial decontamination does not clear on the first retest, further work and re-testing adds to the overall cost.
Access and location. Remote or regional properties may carry additional travel and scheduling costs compared to metro areas.
Fast turnaround between tenancies with full documentation to support insurance and re-letting decisions.
Pre-purchase testing and full decontamination for peace of mind before you move in.
Independent test results and clearance certificates you can share confidently with vendors and buyers.
Detailed reporting that supports claims assessment and strata decision-making.
Delta Environmental provides meth decontamination in every Australian state and territory, with dedicated teams in the major capitals.
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Meth residue is usually invisible and odourless within a few weeks, so the only reliable way to know is independent laboratory testing. Warning signs such as staining, chemical smells or disclosed prior drug use are reasons to test, not proof on their own.
If you have a specific reason to suspect contamination, such as a disclosure from a previous tenant or a positive building inspection flag, it is safest to arrange testing before moving in or continuing to occupy affected rooms, particularly for children and people with respiratory conditions.
A single affected room can often be tested, decontaminated and cleared within a few days. Whole-property jobs with manufacture-level contamination can take one to two weeks depending on the extent of works and retesting.
No. Clearance is always confirmed by an independent, NATA-accredited laboratory that has no financial interest in the outcome, so the certificate you receive is a genuinely independent result.
Some landlord and building insurance policies cover meth contamination caused by tenants, though terms vary significantly between insurers and policies. We provide the detailed testing and remediation documentation insurers typically require, but recommend checking your specific policy wording.
Yes. Our technician network covers metro and regional Australia. Contact us with your postcode and we will confirm the fastest available response time for your location.
No. Painting over contaminated surfaces can temporarily mask odour but does not remove the underlying residue, which can still be detected by testing and may re-emerge as the new paint ages. Proper decontamination treats or removes the affected material rather than sealing it in.
If independent post-remediation testing does not clear, we return to treat the specific areas or materials still showing contamination and re-test again. Your clearance certificate is only issued once results genuinely pass.
We would not recommend it. Surface wiping or repainting does not remove residue that has soaked into plasterboard, carpet, curtains or ductwork, and disturbing contaminated material without protective equipment can expose you to the same chemicals a lab test is designed to detect. Proper cleaning starts with testing to find out exactly what is affected, followed by targeted decontamination and independent re-testing, which is difficult to replicate safely with household products alone.
Cost depends on how much of the property is affected, which materials need to be removed versus cleaned, and how many rounds of testing and retesting are required. A single lightly affected room costs considerably less than a whole property with manufacture-level contamination. We provide a free, itemised quote once initial test results confirm the scope of the job.