NZ Concrete Group
Modern concrete home interior by NZ Concrete Group

NZ Concrete Group

Built to last.
Designed to inspire.

Premium concrete construction across New Zealand and Australia. Family-owned. 30+ years experience.

30+

Years in concrete

100%

Family-owned

NZ & AU

Nationwide reach

ThermaCast™ by NZ Concrete Group

The concrete home system built for New Zealand.

Recognised as NZ's most reputable high-end residential concrete home builders, NZ Concrete Group has spent over 30 years engineering concrete homes purpose-built for New Zealand conditions.

ThermaCast™ is our insulated in-situ concrete wall system — polystyrene sandwiched between two reinforced concrete skins, poured in a single operation. The result is a home that is warmer, stronger, quieter, and built to last generations.

The name comes from the Greek thermos — meaning warm — combined with cast, reflecting the in-situ pour at the heart of the system. Warmth built in from the ground up.

Completed ThermaCast concrete home
ThermaCast concrete shell under construction
ThermaCast wall detail — insulation between concrete skins
NZ Concrete Group crew on commercial build site

Concrete is permanent.
Your builder should be too.

Trusted by industry leaders

Rabone Estates LimitedGMS Global Metal SolutionsTransland Property GroupKoru 63 LtdSoft Technology JR Ltd

Our Work

Recent projects.

Commercial warehouse
Residential townhouses
Tilt-up panel construction
Modern commercial building
ThermaCast wall construction
Precast concrete installation

FAQ

Common Questions

What does NZ Concrete Group specialise in?
NZ Concrete Group is a specialist concrete contractor covering residential, commercial, and civil concrete construction across New Zealand and Australia. Our core services include ThermaCast™ insulated concrete homes, commercial foundations and structural concrete, on-site precast and tilt-up construction, retaining walls, and seismic strengthening. We are family-owned and based in the Waikato with 30+ years of experience.
Where does NZ Concrete Group work?
We work nationwide across New Zealand and deploy specialist teams to Perth and Brisbane in Australia. Our crews have completed projects in Auckland, Hamilton, Waikato, Tauranga, Wellington, Christchurch, Queenstown, and across regional New Zealand.
What is ThermaCast™?
ThermaCast™ is our insulated in-situ concrete wall system for residential homes. Polystyrene insulation is permanently sandwiched between two reinforced concrete skins in a single pour — delivering a home that is warmer, stronger, quieter, and built to last generations. The name derives from the Greek thermos, meaning warm or heat, combined with cast, reflecting the in-situ pour process.
How long has NZ Concrete Group been operating?
NZ Concrete Group has been delivering concrete construction across New Zealand for over 30 years. The company is family-owned and has built its reputation on quality workmanship, experienced crews, and standards that consistently exceed the building code.
Can I get a quote for my project?
Yes. Contact us through our website or call 021 178 3710. We will ask for your project plans or brief and come back to you with an honest assessment and detailed proposal. We do not give vague ballpark figures — we take the time to understand the project properly before quoting.
Do you do residential and commercial work, or just one or the other?
Both. We carry out the full range of concrete construction work — from ThermaCast™ residential homes and foundations through to large commercial developments, industrial precast, civil infrastructure, and seismic strengthening. Our teams are specialists in concrete across all project types.

Ready to build?

Whether you are planning a concrete home, a commercial project, or need specialist advice — we would like to hear from you.

Get in Touch