About us

New Zealand Owned, Architect-Led, Nationwide Service.

Founded in 2013 by Gaylene and Bruce Emett, Thin Tanks NZ began as a humble home-office operation with a big vision: to deliver reliable, aesthetically pleasing, high-quality water tank solutions across New Zealand.

Today, the company remains proudly family-owned, now led by their son Simon Emett—an experienced architect with over 10 years in the industry.

Operating from our dedicated warehouse in Onehunga, we supply and install water tanks for residential properties and developments of all sizes. From small backyard setups to large-scale commercial projects, our expert team is ready to help.

"We’re committed to sustainable living, providing slimline water tanks that conserve resources, complement modern spaces, and empower every home to harvest rain with purpose."

- Gaylene Emett, Thin Tanks Founder

Contact us today on 021 0231 0369 for a free, no-obligation quote.

Our Values

  • Sustainability by Design

    We design slimline water tanks that help households and communities take charge of their water use—reducing pressure on shared resources. By making rainwater harvesting accessible in even the tightest spaces, we support a future where
    sustainability is part of everyday life.

  • Innovation with Purpose

    We’re not just building tanks—we’re rethinking water storage. Every product reflects our commitment to smarter, more sustainable solutions that meet the evolving needs of New Zealanders.

  • Premium Craftsmanship

    Quality is non-negotiable. From materials to manufacturing, we uphold the highest standards to ensure durability, performance, and aesthetic excellence.

  • Client Focussed  

    Our tanks are made to simplify installation, fit tight spaces, and empower homeowners to take control of their water use—without compromise.

  • Transparency & Trust

    We communicate clearly, stand by our warranties, and make technical information accessible. Because trust is built on clarity, not complexity.

  • Local Legacy

    As a family-owned New Zealand business, we’re proud to support local communities, suppliers, and sustainable practices that protect our shared future.