We provide regular servicing and maintenance to prevent problems and increase the longevity of your system.

Emergency Call-Outs

Whatever the issue, our experienced technicians are available 365 days to come out and fix your septic tank.


From small businesses to wineries and dairy factories, we work with a range of commercial wastewater treatment solutions.


S3 works with and supports residents associations and body corporates with their wastewater treatment needs.


We can audit your existing setup and provide recommendations to avoid issues and increase performance.

Systems We Can Service

We are the only authorised service agent of Innoflow and AdvanTex® Systems, and our experienced team supports a wide range of wastewater systems and septic tank companies.

Sewage System Services

S3 looks after thousands of residential and commercial wastewater treatment systems across the country. 

Known for providing a more thorough service and better customer experience, we ensure you’ll have fewer problems

with your system, and it will work efficiently and effectively for decades.

In addition to our highly experienced and skilled team of technicians and engineers, our servicing is backed up by a sophisticated, flexible scheduling system.

So, you can have peace of mind that you’ll never miss a service, and your wastewater system ticks all the necessary compliance boxes.

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Case Studies / Testimonials

"I’d like to highly recommend Steve for the excellent job he did today. He was knowledgeable, courteous and went into great detail to clean and sort all the various parts from filters to floats, etc. We’d appreciate having Steve visit again next year, great job!"

Anon, Oneroa, Auckland,

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Our Brands

We are still operating as an essential service under lockdown.