Need a Home Energy Rating for an existing Australian home? Send us your available plans, photos or property details. Certified Energy will review the information, confirm what is required and guide the next step.
A Home Energy Rating can help you understand how your home performs for thermal comfort, heating, cooling and energy efficiency.
Not sure whether you have enough documentation? Send what is available and we’ll confirm what may be needed for the assessment.
A Home Energy Rating does not need to feel overwhelming. Once we receive your available home information, we review what has been provided and confirm the most practical next step.
Upload available plans, photos, property details, renovation information or previous energy documents through the quote form.
Our team checks the available information and identifies whether there is enough detail to begin an existing home assessment.
If a Home Energy Rating, NatHERS Existing Homes assessment or related upgrade pathway is suitable, we explain the next step clearly.
Once the scope is confirmed, we begin the assessment process using the available home details and relevant rating inputs.
In Australia, the language around existing home energy performance is shifting. NatHERS Existing Homes describes the technical framework being expanded for homes that have already been built, while Home Energy Rating is becoming the clearer public-facing term for understanding how an existing home performs.
Certified Energy can help you understand whether your home, renovation or upgrade project may be suitable for an existing home energy assessment, and what information may be needed to begin.
Explore NatHERS Existing Homes or send your available home information for review.
You can still send us the available information. We’ll review your project details and confirm whether BASIX, NatHERS or another residential energy assessment is required. Send your project documents for review.
Frequently Asked Questions
A Home Energy Rating is an assessment that helps describe how an existing home performs for energy efficiency, thermal comfort, heating and cooling. It considers the home as it currently exists, including factors such as orientation, glazing, insulation, shading, construction details and available building information.
They are closely related. NatHERS Existing Homes refers to the emerging assessment framework for rating homes that have already been built, while Home Energy Rating is becoming the clearer public-facing term for understanding the energy performance of existing homes.
Yes. Many older homes may be suitable for an existing home energy assessment. The level of information available can affect how the assessment is started, but older homes do not need to be perfect, newly renovated or highly efficient before they can be reviewed.
Helpful information may include the property address or suburb, photos of the home, floor plans if available, renovation details, window or glazing information, insulation details, heating and cooling system information, hot water system information and any previous building or energy documents.
Yes. Existing homes often do not have a complete set of plans or construction documents. You can send the information currently available, and Certified Energy can review whether there is enough detail to begin or whether more information may be needed.
Architectural plans are helpful, but they are not always the only starting point. For some existing homes, photos, property details, renovation information and available construction notes may help us understand what is possible and what further information may be required.
A Home Energy Rating may consider the building elements that influence comfort and energy use, including orientation, glazing, window frames, shading, roof and wall construction, insulation, floor type, heating and cooling systems, hot water systems and local climate conditions.
Yes. A Home Energy Rating can help clarify how the existing dwelling performs before you commit to upgrades. It may support better decisions around insulation, glazing, shading, heating, cooling, hot water systems and other energy performance improvements.
No. Energy use is part of the picture, but thermal comfort is also important. A rating can help explain why a home may be difficult to keep warm in winter, difficult to cool in summer or more dependent on mechanical heating and cooling than expected.
They may be. Existing home energy assessments can be relevant for detached homes, townhouses, apartments and other residential dwellings, depending on the available information and the assessment pathway being considered.
Yes. You can send the information you have, and Certified Energy can review what has been provided. If a Home Energy Rating, NatHERS Existing Homes assessment or related energy assessment pathway is suitable, we can confirm the next practical step.
Home Energy Ratings are becoming more important as Australia places more focus on the performance of existing homes, not only new homes. They can help homeowners, property owners and industry professionals understand comfort, efficiency, upgrade opportunities and future disclosure pathways.
Photos, property details, floor plans, renovation information or previous energy documents can help our team begin reviewing whether a Home Energy Rating assessment is suitable.
