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Understand how your home performs  and what is worth improving 

Is your home too cold in winter, too hot in summer, expensive to heat or cool, draughty, or simply not as comfortable as it should be?

Mantle combines Home Energy Ratings with building-performance expertise to help you understand how your home is performing, identify what is holding it back and make better-informed decisions about future improvements.

Whether you simply need an official Home Energy Rating or want a detailed retrofit strategy, we can provide the level of advice that suits your home and your plans.

ASSESS → UNDERSTAND → PRIORITISE → IMPROVE

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[Book an Assessment]    [Compare Services]

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What is a Home Energy Rating?
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A Home Energy Rating sets the standard for measuring the energy efficiency of Australian homes. Issued by the Nationwide House Energy Rating Scheme (NatHERS), Home Energy Rating assessments guide designers, builders and households to make choices that lower energy bills and reduce emissions.

Backed by government and grounded in science, Home Energy Rating assessments give Australians the confidence to build and upgrade homes that use less energy and are more comfortable to live in.

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Your assessment includes an on-site inspection and accredited modelling of your home, resulting in an official Home Energy Rating Certificate.

But a rating is only the beginning. At Mantle, we can also help you understand why your home performs the way it does and which improvements are likely to be worth prioritising.

Choose the level of advice you need

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HOME ENERGY RATING 

How does my home perform?

For homeowners who want an accredited assessment and official Home Energy Rating.

  • On-site home energy assessment

  • NatHERS modelling

  • Official Home Energy Rating Certificate

  • Certificate-generated upgrade guidance

  • Brief certificate clarification

Best for: homeowners who primarily need the official rating.

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★ HOME PERFORMANCE ASSESSMENT 

Why does my home perform this way — and what should I improve first?

Our recommended service. For homeowners who want to go beyond the rating and understand where their home is losing performance and where improvement investment should be prioritised.

  • Everything in the Home Energy Rating

  • Mantle building-performance interpretation

  • Key building-envelope findings

  • Property-specific priority recommendations

  • Do First / Plan Next / When Renovating improvement pathway

  • Mantle Home Performance Summary

  •  Consultation

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RETROFIT ROADMAP & DESIGN

How should I improve my home over time?

For homeowners planning substantial upgrades, staged retrofit or renovation.

  • Accredited Home Energy Rating

  • Detailed performance analysis

  • Priority retrofit opportunities

  • Up to three agreed upgrade modelling scenarios

  • Comparison against existing performance

  • Staged retrofit strategy

  • Renovation and upgrade sequencing considerations

  • Detailed Mantle Home Performance & Retrofit Report

  • Design consultation

  • Post-report clarification​

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Not sure which assessment you need?
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I just want to know how my home rates. → Home Energy Rating

I want to know what I should improve first. → Home Performance Assessment

I'm planning substantial upgrades or renovation and want to model my options. → Retrofit Roadmap

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For most homeowners looking to improve comfort and performance, we recommend the Home Performance Assessment.

What we look at

A home doesn't perform as a collection of individual products. Insulation, glazing, orientation, shading, air leakage and building services interact with each other.

Depending on the assessment, Mantle considers roof and ceiling, walls, floors, windows and doors, insulation, draughts, orientation, solar exposure, shading, heating and cooling, hot water, ventilation and renewable energy.

The objective is not simply to produce a higher rating. It is to identify improvements that make sense for your particular home, comfort priorities, budget and future plans.

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A smarter approach to retrofit

Replacing windows might help one home enormously and represent poor value in another. More insulation isn't automatically the first priority. Solar panels can reduce purchased electricity but don't fix a poorly performing building envelope.

That's why Mantle looks at the home as a system.

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