We get your star rating sorted and then go further. 

Optimising new and existing homes for comfort solar performance and long term efficiency. 

We undertake all types of building energy rating and compliance: 

• NatHERS energy assessments and whole-of-home compliance
• Renovation and extension compliance 
• Advanced building physics modelling when you need expert advice 

Whether it's a new build, retrofit or unconventional design, we provide clear pathways to approval - while improving comfort, efficiency and buildability. 

When you work with Powerhaus, you don't just receive a PDF certificate. 

You get access to the Powerhaus app: our award-winning energy dashboard. 

It turns complex modelling into clear, practical insight. 

You can: 

• Test insulation, windows and shading in real time 
• See what actually moves the star rating 
• Understand heating and cooling loads instantly 
• Align systems and solar with demand 

Move from guesswork to clarity. From minimum compliance to measurable performance that wows clients. 

Why builder's and designers use Powerhaus: 

• Improve design decisions earlier 
• Show clients clear performance trade-offs 
• Win better projects with data-backed confidence 
• Avoid late-stage compliance headaches 

Same house. Smarter performance decisions. 

Professional expertise 

• Qualified engineers & thermal performance experts 
• Accredited NatHERS assessors 
• Experts in JV3 modelling 

Industry memberships 

• Sustainable Builders Alliance member 
• Proptech Association of Australia member
• Home Energy Raters Assocation member 

Recognition 

• Winner, Most Innovative Environmental PropTech - 2024 Proptech Awards 
• Winner, Best Sustainable Building Solution - 2024 Sustainability Awards 
• ACT Government Innovation Grant Recipient 
• Featured in Sanctuary magazine, Undercover Architect and Build Insite podcasts