About us

Dedicated to building
great concrete water tanks

Established in 1974, ACT Concrete Water Tanks is a leading builder of above-ground and underground concrete water tanks in the ACT and NSW (including Sydney). ACT Concrete Water Tanks is a true family business: owners Ben and Tamara Haitsma are assisted by Ben’s father, Sam Haitsma, an accomplished concrete tank builder.

Away from the business, Ben and Tamara are dedicated parents with a love of football. Ben still plays competitive football for Tuggeranong United Football Club, and Tamara coaches her daughter’s football team at the same club. Ben and Tamara have strong family values, and bring the same ethos and sense of community to ACT Concrete Water Tanks.

Our Mission

  • To build the highest-quality concrete rainwater tanks in the ACT, regional NSW and Sydney.
  • To use eco-friendly materials and employ local staff wherever possible.
  • To build long-term, mutually beneficial relationships with our customers and suppliers.
  • To set the standard for concrete rainwater tanks in the ACT and NSW (including Sydney).

Our value proposition

ACT Concrete Water Tanks (NSW licence no: 92647c) is proud of its unique value proposition.


ACT Concrete Water Tanks is renowned for its quality above-ground and underground concrete water tanks, which come with a 25-year guarantee. Master tank builders Ben and Sam Haitsma use only premium materials sourced from reputable suppliers, as well as proven construction methods. Every tank built by ACT Concrete Water Tanks is AS3600 and AS3735 compliant.

Experience and Expertise

For over 40 years, homeowners, businesses and farms have depended on ACT Concrete Water Tanks for their rainwater storage solutions. Despite the emergence of many competitors selling poly tanks, ACT Concrete Water Tanks continues to set the benchmark for quality water tanks in Sydney, regional NSW and the ACT.

Choice of Rainwater Tank Sizes

ACT Concrete Water Tanks builds water storage tanks in a number of sizes: 10,000 litres, 20,000 litres, 90,000 litres and 120,000 litres. Our smallest tank (10,000 litres) is made from pre-cast concrete and is transportable, whereas our larger rainwater tanks (20,000 litres, 90,000 litres, 120,000 litres) are poured on site. All our tank sizes are available as above-ground or underground rainwater tank


As an established family business, ACT Concrete Water Tanks prides itself on honesty, integrity and transparency. All our projects are covered by Public Liability and Professional Indemnity insurance.

Customer Service

You’ll enjoy working with the friendly and knowledgeable team at ACT Concrete Water Tanks. Whether you’re dealing with Ben on site or Tamara in the office, you’ll come away knowing that your project is in good hands.