How to Get a Home Energy Rating
A step-by-step guide to getting your home's NatHERS assessment
Taylor M
NatHERS & Home Energy Specialist
The Process Overview
Getting a home energy rating involves working with a certified NatHERS assessor who will evaluate your home's design and provide an official rating. Here's how it works:
Step 1: Find a Certified Assessor
Start by finding accredited NatHERS assessors in your area. You can:
- Use our free quote service to compare multiple assessors
- Check the official NatHERS assessor directory
- Ask your builder or architect for recommendations
- Search by state in our assessor database
Step 2: Gather Information
Prepare the following information for your assessor:
- Building plans and specifications
- Site orientation and location details
- Window types, sizes, and placement
- Insulation specifications
- Wall, floor, and roof construction details
- Any existing energy efficiency features
Step 3: Schedule the Assessment
Contact your chosen assessor to arrange the rating. They will:
- Review your building plans and specifications
- Visit the site if required (for existing homes)
- Input data into specialized NatHERS software
- Run thermal performance simulations
- Typically takes 1-3 business days
Step 4: Receive Your Certificate
Your assessor will provide you with:
- Official NatHERS certificate with your star rating
- Detailed assessment report
- Recommendations for improvements (if applicable)
- Certificate registration in the national database
- Valid for the life of the building (unless major changes occur)
When You Need a Rating
A NatHERS rating is required for:
- New home construction: Before building approval
- Major renovations: When extending heated/cooled areas
- Property sales: In ACT (mandatory disclosure)
- Development approvals: For multi-residential buildings
- Accessing rebates: For some government incentive programs
Tips for a Better Rating
- Engage an assessor early in the design phase
- Optimize home orientation for passive solar design
- Invest in quality insulation and glazing
- Minimize thermal bridging in construction
- Consider climate zone requirements
- Use appropriate window-to-wall ratios
Get Started Today
Ready to get your official NatHERS rating? Explore our tools and connect with certified assessors.
Estimate Your Rating
Use our free calculator to get an instant estimate of your home's energy star rating.
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Official Government Resources
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