Our team, all coming from slightly different backgrounds, have collaborated in a methamphetamine decontamination company. 

Shanan Stewart

Managing Director

After playing professional cricket for 13 years, I took the steps to become a qualified builder. I recognised throughout my experience that there was a gap in the market for a safe remedial quality methamphetamine decontamination systems. 

At that stage, remedials were labour intensive and many houses had to be relined. I believed that worldwide there must have been a better solution for this growing problem. 

This is when I traveled to Utah to gain further knowledge and understanding or the epidemic and how to remediate the effect of the drug or under best practice. 
I could see similarities to the usage rates of Methamphetamine in the USA to New Zealand. Apple Environmental Meth Remover was my chosen product after much research to bring to the New Zealand market.  Hills Laboratories in NZ have tested and confirmed this product and our cleaning methodology complies to NZS8510:2017.  


Zsolt Baumann


Born and raised in Hungary, I've been a junior manager for an established commercial cleaning business in Hungary with more than 200 workers. I have a Bachelor's degree in Business Management and Project Management. I moved to New Zealand in 2016. I have worked in the commercial cleaning industry for 5 years.

Culum Retallick

Waikato / BOP / Auckland

I grew up in North Canterbury, Christchurch and I was educated at Shirley Boys High School. After leaving school I had a professional rugby career till I was 33. After finishing my rugby career, I got into EDS and the decontaminating industry. It fits into my lifestyle as an owner/operator and still has flexibility around my family.


After being in a professional sports career for over 10 years, where decision-making skills under pressure and the process-driven and team environment, I'm using the same principles and processes in the decontamination industry where you follow the process you get great results that make houses safe again.

Eco Decontamination Systems (“EDS”) is a company with over 30 years of combined experience from within the drug detection and cleaning industry. We specialise in the decontamination of methamphetamine contaminated homes and training new contractors in our unique eco-friendly cleaning system throughout New Zealand.

Taking into consideration New Zealand’s eco-friendly values and vision, EDS choose to partner with Apple Environmental (USA).    Apple Environmental produces one of the world's leading methamphetamine decontamination products.

Hill Laboratories and E.S.R. have tested and confirmed Apple Environmental Meth Remover and our cleaning methodology comply with the NZ Standard for Testing and Decontamination of Methamphetamine-contaminated Properties (NZS8510:2017).

Our Director, Shanan traveled to the USA and undertook significant product-specific training at the Apple Environmental facilities located in Utah. Whilst there Shanan undertook technical training on the effects of methamphetamine use, focusing on the ongoing issues that it creates within our homes and communities and the process to ensure the effective removal of this poison from homes.


The Eco Decontamination Systems team are highly qualified, friendly, professionals, who are dedicated to ensuring the stresses of methamphetamine decontamination are taken care of in the safest way possible. 


Combining all of this expert knowledge Eco Decontamination Systems (EDS) was formed.

I found Shanan to be proactive, motivated and efficient from the first phone call to inquire about a meth clean.  It's for this reason I chose to have this company come into our rental property and carry out the required work. Obviously, it's a stressful time when your biggest asset has been contaminated, and I found Shanan to be a problem solver and no issue was an issue.  He collected the keys, got the job and certification complete and allowed us to focus on other priority conversations.                                                                                                             Julia McLean, Rangiora

Shanan and his entire team were total professionals and very easy to deal with. They were able to answer any questions/concerns we had and kept us updated every step of the way. We are really satisfied with the results of their work and would happily recommend Eco Decon Systems to anyone finding themselves in need of a reliable, honest and thorough decontamination service.

                                                                                                                                                                                                                                                                                          Margaret L, Auckland 

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NZ Drug Decontamination & Remediation Specialists Limited

0800 332 6669

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Eco Decontamination Systems Limited 2019