ThermaBuild Homes, built by Alexander
Create a warmer, energy efficient home, faster... and all for a similar cost to conventional construction.
ThermaBuild homes are built using a patented portal TRUSS HOUSE™ framing system to achieve a structurally superior and faster method of construction.
The ThermaBuild difference
The patented portal TRUSS HOUSE™ system.
ThermaBuild replaces conventional stud-and-beam framing with pre-engineered portal trusses. They arrive on site to exact specifications and are stood up in hours, not days — creating large, clear-span interiors without load-bearing internal walls, and forming the seamless envelope behind our near-passive house performance. The patented portal system has been licensed by Alexander Construction from TRUSS HOUSE™ to create the unique ThermaBuild system.
Erected in hours
Portal trusses go up dramatically faster than conventional framing.
Near-passive performance
Warm in winter, cool in summer, with minimal energy input.
Engineered strength
Built for NZ seismic and wind loads — designed to endure.
Design freedom
Clear-span interiors with no load-bearing internal walls.
Watch
ThermaBuild Homes at a glance.
A short overview of the benefits and the TRUSS HOUSE™ system behind every ThermaBuild home.
Our designs
Start from a plan, make it yours.
Choose a starting design, then build a personal specification — inclusions, finishes and upgrades — saved to your planner.
Ready to design your ThermaBuild home?
Create a free account to save designs, customise inclusions, and share your planner with our team.