About Sydney Water Tanks

At Sydney Water Tanks, we are committed to providing water solutions that offer you freedom to use water without draining Sydney's precious resource.

A Wealth of Water Wisdom

Our long history in water systems began with our parent company BioSeptic Pty Ltd, which has been designing, manufacturing and supplying quality wastewater treatment systems for over 15 years.

Born from the experience and expertise of BioSeptic, Sydney Water Tanks has quickly become a leading provider of premium underground rainwater tanks that have set new benchmarks in the industry.

We are fully Australian owned and operated, and our highly experienced team is ready to engineer a rainwater system to suit your home. The design and capacity of your Sydney Water Tank are selected according to your particular needs and the geographical terrain of your site, with the turret height and fall designed to maximise rainwater storage in your concrete tank.

The Word Is Out

Hear what some of our customers have to say:

"One word for Sydney Water Tanks: exceptional. With block sizes getting smaller, their in-ground tank gives you more room around your property. They use the best materials and their service is outstanding. They’re a pleasure to deal with and I recommend them to everyone."

"Sydney Water Tanks is a very professional company and good to deal with... their systems are easy to install and come with good instructions and support. [They] are affordable, give customers a greater volume of water than other tanks more cost effectively and the quality of their system is excellent."

"Sydney Water Tanks... lead the way in professionalism, service & quality. I recommend Sydney Water Tanks to all people enquiring about water tanks."

The answer is simple - our tanks are strong, reliable, out of sight and custom-engineered for your home. Just look below to see why we give you more reasons to choose Sydney Water Tanks than any other rainwater tank manufacturer in Australia.