1300 763 761
[email protected] 1300 763 761
28/7 Sefton Rd, Thornleigh NSW 2120
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Water Tanks

Serious water storage. Completely out of sight.

Underground concrete water tanks from 42,000 to 400,000 litres, built across Sydney, Newcastle and the Central Coast. Engineered by the same team behind our concrete pools.

Why Choose an Underground Concrete Tank?

No ugly poly or steel tanks taking up your yard. A concrete tank sits underground, out of sight, where the water stays cool, clean and protected. It’s a permanent water solution for homes, schools, sporting grounds and community projects.

  • Capacities from 42,000 to 400,000 litres
  • Hidden underground, safe from contamination and vandalism
  • Goes under driveways, garages and gardens
  • Water stays cool and bacteria free
  • Doubles as a platform for entertaining areas on sloping blocks
1300 763 761
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From empty ground to full storage. Your tank, built step by step.

Six proven stages. You’ll know what’s happening, when, and why. No surprises.

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STEP 1 DESIGN

Designed around your family

We map your land, lifestyle, and wish list. No templates. Just your perfect pool.

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STEP 2 EXCAVATION

Where the dream meets the dig

Council approved? Machines roll in. You'll finally see your pool coming to life.

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STEP 3 FORMWORK & STEEL

Strength you'll never see

Timber frame + steel cage = hidden backbone. Plumbing goes in. Your pool takes shape.

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STEP 4 CONCRETE SPRAY

The day your pool becomes real

Concrete sprayed and shaped. While it cures, we install pump, filter, and plumbing.

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STEP 5 COPING AND SURROUNDS

The frame that ties it together

Choose pavers, tiles, stone, or timber. We can also handle landscaping and decking.

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STEP 6 INTERIOR

The final layer. The first splash.

Pick your interior. Fill the pool. Then the best words: "Time to get wet."

Question? We’ve got answers.

Our concrete tanks range from 42,000 litres up to 400,000 litres. That covers everything from a family home to schools, sporting grounds and community projects. We’ll help you size the right tank for your water needs and your block.

Concrete tanks go completely underground, so there’s nothing to look at, secure or work around. The water stays cool and bacteria free instead of heating and cooling in the sun. And because it’s concrete, it’s a permanent solution built to last a lifetime.

Almost anywhere. Under the house, driveway, garage or garden. On sloping blocks, the tank can even double as a platform for a sitting area, cabana or entertaining space. We assess every site before we quote, so you’ll know exactly what’s possible.

Connect your tank to toilets and irrigation systems, or use it for general property maintenance. In rural areas, tank water can supply showers and washing machines. With gutter guards and filtration installed, you get high-quality water year round.

Yes. We manage the design, engineering, paperwork and construction. It’s the same end-to-end approach we bring to every pool we build, backed by 35+ years of concrete construction experience.

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Ready to stop dreaming and start swimming?

No obligation. No pressure. Just a honest conversation about what’s possible for your property.

1300 763 761