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 Passive Home principles 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.
Passive Home principles
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.